KeePassXC

KeePassXC

@keepassxc.org

KeePassXC password manager – https://keepassxc.org GitHub: https://github.com/keepassxreboot/keepassxc Snapshot builds: https://snapshot.keepassxc.org/ Mastodon: https://fosstodon.org/@keepassxc Team email PGP key: 2FB8 CA9C 105D 8D57 BB97 46BD

1.3K followers9 following84 posts

KeePassXC
@keepassxc.org

🚨 Attention! Yesterday, we published new 2.8.0-1 binaries for macOS (DMG) and Linux (AppImage) to fix three separate upstream Qt bugs on macOS and to ship an updated version of Brotli that fixes CVE-2026-111497. 1/3

fosstodon.orgTeam KeePassXC (@keepassxc@fosstodon.org)🎉 We're happy to announce #KeePassXC version 2.8.0-beta1! This is the first test release of our next major update, which brings you an upgrade to Qt6, Auto-Type on Wayland, remote sync, ARM64 builds ...
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KeePassXC
@keepassxc.org

Besides the Brotli patch, the updated binaries fix Qt crashes on macOS 27 and a deployment issue of the Qt TLS modules breaking the update checker and favicon downloads. No new binaries are needed for Windows, since we don't bundle Brotli there. 3/3

KeePassXC
@keepassxc.org

The new binaries have a -1 version suffix, but KeePassXC will display the same 2.8.0 version number under About. If you want to check whether you already have the new version, check the revision number under About / Debug Info. The new version will show up as revision 82ab2fd.

KeePassXC
@keepassxc.org

🚨 Attention! Yesterday, we published new 2.8.0-1 binaries for macOS (DMG) and Linux (AppImage) to fix three separate upstream Qt bugs on macOS and to ship an updated version of Brotli that fixes CVE-2026-111497. 1/3

fosstodon.orgTeam KeePassXC (@keepassxc@fosstodon.org)🎉 We're happy to announce #KeePassXC version 2.8.0-beta1! This is the first test release of our next major update, which brings you an upgrade to Qt6, Auto-Type on Wayland, remote sync, ARM64 builds ...
KeePassXC
@keepassxc.org

...integration (back then still based on the keepasshttp protocol). Three months later, in January 2017, we finally released the first stable KeePassXC version 2.1.0. Now nearing its 10th birthday, KeePassXC has evolved a lot, and very little reminds you today of... 🧵 2/3

KeePassXC
@keepassxc.org

"All modern AI models are good at this now. Anyone with time and some experimental spirits can find security problems now. The high quality chaos is real." Second that. The number of confidential security reports for KeePassXC has also gone up (though nothing major yet). 1/2

daniel:// stenberg://@bagder.mastodon.social.ap.brid.gy

#Mythos finds a #curl vulnerability yes, as in singular one. https://daniel.haxx.se/blog/2026/05/11/mythos-finds-a-curl-vulnerability/

daniel.haxx.seMythos finds a curl vulnerabilityyes, as in singular _one_. Back in April 2026 Anthropic caused a lot of media noise when they concluded that their new AI model _Mythos_ is _dangerously good_ at finding security flaws in source code. Apparently Mythos was so good at this that Anthropic would not release this model to the public yet but instead trickle it out to a selected few companies for a while to allow a few good ones(?) to get a head start and fix the most pressing problems first, before the general populace would get their hands on it. The whole world seemed to lose its marbles. Is this the end of the world as we know it? An amazingly successful marketing stunt for sure. ## My (non-) access Part of the deal with _project Glasswing _was that Anthropic also offered access to their latest AI model to “Open Source projects” via Linux Foundation. Linux Foundation let their project Alpha Omega handle this part, and I was contacted by their representatives. As lead developer of curl I was offered access to the magic model and I graciously accepted the offer. Sure, I’d like to see what it can find in curl. I signed the contract for getting access, but then nothing happened. Weeks went past and I was told there was a hiccup somewhere and access was delayed. Eventually, I was instead offered that someone else, who has access to the model, could run a scan and analysis on curl for me using Mythos and send me a report. To me, the distinction isn’t that important. It’s not that I would have a lot of time to explore lots of different prompts and doing deep dive adventures anyway. Getting the tool to generate a first proper scan and analysis would be great, whoever did it. I happily accepted this offer. (I am purposely leaving out the identity of the individual(s) involved in getting the curl analysis done as it is not the point of this blog post.) ## AI scans of curl Before this first Mythos report, we had already scanned curl with several different very capable AI powered tools (I mean _in addition to_ running a number of “normal” static code analyzers all the time, using the pickiest compiler options and doing fuzzing on it for years etc). Primarily AISLE, Zeropath and OpenAI’s Codex Security have been used to scrutinize the code with AI. These tools and the analyses they have done have triggered somewhere between _two and three hundred_ bugfixes merged in curl through-out the recent 8-10 months or so. A bunch of the findings these AI tools reported were confirmed vulnerabilities and have been published as CVEs. Probably a dozen or more. Nowadays we also use tools like GitHub’s Copilot and Augment code to review pull requests, and their remarks and complaints help us to land better code and avoid merging new bugs. I mean, we still merge bugs of course but the PR review bots regularly highlight issues that we fix: our merges would be worse without them. The AI reviews are used _in addition_ to the human reviews. They help us, they don’t replace us. We also see a high volume of high quality security reports flooding in: security researchers now use AI extensively and effectively. Security is a _top_ _priority_ for us in the curl project. We follow every guideline and we do software engineering properly, to reduce the number of flaws in code. Scanning for flaws is just one of many steps to keep this ship safe. You need to search long and hard to find another software project that makes as much or goes further than curl, for software security. Steps involved in keeping curl secure ## May 6, 2026 It was with great anticipation we received the first source code analysis report generated with Mythos. Another chance for us to find areas to improve and bugs to fix. To make an even better curl. This initial scan was made on curl’s git repository and its master branch of a certain recent commit. It counted 178K lines of code analyzed in the src/ and lib/ subdirectories. The analysis details several different approaches and methods it has performed the search, and how it has focused on trying to find which flaws. A fun note in the top of the report says: > curl is one of the most fuzzed and audited C codebases in existence (OSS-Fuzz, Coverity, CodeQL, multiple paid audits). Finding anything in the hot paths (HTTP/1, TLS, URL parsing core) is unlikely. … and it correctly found no problems in those areas. Completely unscientific poll on Mastodon about people’s expectations for Mythos scanning curl ## The size of curl curl is currently 176,000 lines of C code when we exclude blank lines. The source code consists of 660,000 words, which is 12% more words than the entire English edition of the novel War and Piece. On average, every single production source code line of curl has been written (and then rewritten) 4.14 times. We have polished on this. Right now, the existing production code in git master that still remains, has been authored by 573 separate individuals. Over time, a total of 1,465 individuals have so far had their proposed changes merged into curl’s git repository. We have published 188 CVEs for curl up until now. curl is installed in over _twenty million instances_. It runs on over _110 operating systems_ and _28 CPU architectures_. It runs in every smart phone, tablet, car, TV, game console and server on earth. ## Five findings became one The report concluded it found **five** “Confirmed security vulnerabilities”. I think using the term _confirmed_ is a little amusing when the AI says it confidently by itself. Yes, the AI thinks they are confirmed, but the curl security team has a slightly different take. Five issues felt like nothing as we had expected an extensive list. Once my curl security team fellows and I had poked on the this short list for a number of hours and dug into the details, we had trimmed the list down and were left with _one_ confirmed vulnerability. The other four were three false positives (they highlighted shortcomings that are documented in API documentation) and the fourth we deemed “just a bug”. The single confirmed vulnerability is going to end up a _severity low_ CVE planned to get published in sync with our pending next curl release 8.21.0 in late June. The flaw is not going to make anyone grasp for breath. All details of that vulnerability will of course not get public before then, so you need to hold out for details on that. The Mythos report on curl also contained a number of spotted bugs that it concluded were not vulnerabilities, much like any new code analyzer does when you run it on hundreds of thousands of lines of code. All the bugs in the report are being investigated and one bye one we are fixing those that we agree with. All in all about twenty bugs that are described and explained very nicely. Barely any false positives, so I presume they have had a rather high threshold for certainty. curl is certainly getting better thanks to this report, but counted by the volume of issues found, all the previous AI tools we have used have resulted in larger bugfix amounts. This is only natural of course since the first tools we ran had many more and easier bugs to find. As we have fixed issues along the way, finding new ones are slowly becoming harder. Additionally, a bug can be small or big so it’s not always fair to just compare numbers ## Not particularly “dangerous” My personal conclusion can however not end up with anything else than that the big hype around this model so far was primarily marketing. I see no evidence that this setup finds issues to any particular higher or more advanced degree than the other tools have done before Mythos. Maybe this model is a little bit better, but even if it is, it is not better to a degree that seems to make a significant dent in code analyzing. This is just _one_ source code repository and maybe it is much better on other things. I can only tell and comment on what it found here. ## Still very good But allow me to highlight and reiterate what I have said before: AI powered code analyzers are _significantly_ better at finding security flaws and mistakes in source code than any traditional code analyzers did in the past. All modern AI models are good at this now. Anyone with time and some experimental spirits can find security problems now. The high quality chaos is real. Any project that has not scanned their source code with AI powered tooling will likely find huge number of flaws, bugs and possible vulnerabilities with this new generation of tools. Mythos will, and so will many of the others. Not using AI code analyzers in your project means that you leave adversaries and attackers time and opportunity to find and exploit the flaws you don’t find. ## How AI analyzers differ * They can spot when the comment says something about the code and then conclude that the code does not work as the comment says. * It can check code for platforms and configurations we otherwise cannot run analyzers for * It “knows” details about 3rd party libraries and their APIs so it can detect abuse or bad assumptions. * It “knows” details about protocols curl implements and can question details in the code that seem to violate or contract protocol specifications * They are typically good at summarizing and explaining the flaw, something which can be rather tedious and difficult with old style analyzers. * They can often generate and offer a patch for its found issue (even if the patch usually is not a 100% fix). ## More details from the report **Zero memory-safety vulnerabilities found.** Methodology note: this review is hand-driven analysis using LLM subagents for parallel file reads, with every candidate finding re-verified by direct source inspection in the main session before being recorded. The CVE to variant-hunt mapping was built from curl’s own vuln.json. No automated SAST tooling was used. This outcome is consistent with curl’s status as one of the most heavily fuzzed and audited C codebases. The defensive infrastructure (capped dynbufs everywhere, `curlx_str_number` with explicit max on every numeric parse, `curlx_memdup0` overflow guard, CURL_PRINTF format-string enforcement, per-protocol response-size caps, pingpong 64KB line cap) systematically closes the bug classes that would normally be productive in a codebase this size. Coverage now includes: all minor protocols, all file parsers, all TLS backends’ verify paths, http/1/2/3, ftp full depth, mprintf, x509asn1, doh, all auth mechanisms, content encoding, connection reuse, session cache, CLI tool, platform-specific code, and CI/build supply chain. ## AI finds existing kinds of errors It should be noted that the AI tools find the usual and established kind of errors we already know about. It just finds new instances of them. We have not seen any AI so far report a vulnerability that would somehow be of a novel kind or something totally new. They do not reinvent the field in that way, but they do dig up more issues than any other tools did before. ## More to find These were absolutely not the last bugs to find or report. Just while I was writing the drafts for this blog post we have received more reports from security researchers about suspected problems. The AI tools will improve further and the researchers can find new and different ways to prompt the existing AIs to make them find more. We have not reached the end of this yet. I hope we can keep getting more curl scans done with Mythos and other AIs, over and over until they truly stop finding new problems. ## Credits Thanks to Anthropic and Alpha Omega for providing the model, the tools and doing the scan for us. Thanks also to the individual who did the scan for us. Much appreciated! Top image by Jin Kim from Pixabay Thanks for flying curl. It’s never dull.
KeePassXC
@keepassxc.org

Those AI reports used to be slop, but they are now mostly legitimate. We don't know which models are being used by the reporters, but occasionally, we get the same things reported multiple times within the span of just days. 2/2

KeePassXC
@keepassxc.org

The website is asking for your email address to access the downloads. We never ask for your email address. Do not enter your data there, it's a phishing attempt.

KeePassXC
@keepassxc.org

To everyone experience issues with KeePassXC-Browser on Edge at the moment: We are aware of that. It's caused by a browser engine bug that has already been rolled back in other Chromium-based browsers, but not Edge. Please be patient, downgrade, or use this workaround: github.com/keepassxrebo...

github.comCan't connect DB or click any buttons in extension settings in the latest version of Edge. Edge Version 144.0.3719.82 (Official build) (64-bit) · Issue #2838 · keepassxreboot/keepassxc-browserHave you searched for an existing issue? Yes, I tried searching and reviewed the pinned issues Brief Summary Can't connect DB or click any buttons in extension settings in the latest version of Edg...
KeePassXC
@keepassxc.org

Earlier this year, the German BSI together with the Consumer Advice Centre NRW performed a review of 10 popular password managers. What can we say? We're happy to be one of only few to receive a very positive review without major security concerns. 1/2

bsi.bund.dePasswortmanager im Test: IT-Sicherheit und Datenschutz im FokusIm Rahmen einer Kooperation zwischen der Verbraucherzentrale Nordrhein-Westfalen e. V. (VZ NRW) und dem BSI wurde im ersten Halbjahr 2025 untersucht, wie sicher und datenschutzkonform ausgewählte Pass...
KeePassXC
@keepassxc.org

Based on early feedback provided from the BSI (and similar request in the past), KeePassXC 2.7.11 (released two weeks ago) changed the default auto-lock setting after inactivity to "on" with a timeout of 15 minutes. Go to settings -> Security in case you want to restore the previous behaviour.

KeePassXC
@keepassxc.org

The full report of the CSPN audit performed by Synacktiv on behalf of ANSSI is now available on our website. If you ever wanted to know how KeePassXC works under the hood, it should make for an interesting read with many annotated code examples. keepassxc.org/audits/#cspn...

keepassxc.orgKeePassXC Security Audits and Certifications – KeePassXCKeePassXC Password Manager
KeePassXC@keepassxc.org

On 17 November 2025, KeePassXC (Version 2.7.9 for Windows 10) has been awarded a security Visa by the French National Cybersecurity Agency (ANSSI) for a First-level Security Certification (CSPN) with report No. ANSSI-CSPN-2025/16.

KeePassXC
@keepassxc.org

🎉 We're very happy to announce our new release KeePassXC 2.7.11 and... *drumroll* that the KeePassXC version 2.7.9 has been awarded a CSPN Security Visa by the French National Cybersecurity Agency (ANSSI). 🎉❤️ See our blog post for more information: keepassxc.org/blog/2025-11... #VisaSecu #KeePassXC

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KeePassXC
@keepassxc.org

New macOS DMG and AppImage builds have been posted as 2.7.11-1, which fix code signing and packaging issues.

KeePassXC@keepassxc.org

Update: There's an issue with the code signature on macOS, which prevents users from using the browser extension and the CLI tool. We're looking into that and will post a fix later today. github.com/keepassxrebo...

github.commacOS: Browser connection and keepassxc-cli not working (code signing error) · Issue #12713 · keepassxreboot/keepassxcHave you searched for an existing issue? Yes, I tried searching and reviewed the pinned issues Brief Summary Upgraded to latest KeyPassXC. Existing database connection in Firefox is gone. Can't get...
KeePassXC
@keepassxc.org

🎉 We're very happy to announce our new release KeePassXC 2.7.11 and... *drumroll* that the KeePassXC version 2.7.9 has been awarded a CSPN Security Visa by the French National Cybersecurity Agency (ANSSI). 🎉❤️ See our blog post for more information: keepassxc.org/blog/2025-11... #VisaSecu #KeePassXC

KeePassXC
@keepassxc.org

The most notable new features are: support for more file types in the inline attachment viewer, the ability to edit text file attachments, a new database merge confirmation dialog, support for groups in KeeShare, and an option for automatically generating passwords in new entries.

KeePassXC
@keepassxc.org

On 17 November 2025, KeePassXC (Version 2.7.9 for Windows 10) has been awarded a security Visa by the French National Cybersecurity Agency (ANSSI) for a First-level Security Certification (CSPN) with report No. ANSSI-CSPN-2025/16.

KeePassXC
@keepassxc.org

🚨Careful! There seems to be a series of Medium posts advertising a new $KEEPASSXC crypto coin with links to fake airdrop websites. THIS IS NOT REAL! Stay away! We don’t offer crypto coins and we have not the slightest desire to do so.

KeePassXC
@keepassxc.org

PSA: The new version of our browser extension now requires additional permissions to "change your privacy-related settings". The new permissions are required so we can set KeePassXC-Browser as your default password manager backend. Unfortunately, there isn't a better name for this permission set.

KeePassXC
@keepassxc.org

Please accept the permission change to re-enable the extension. More information can be found in the pull request that added the change: github.com/keepassxrebo...

github.comAdd Getting Started page, and support for default password manager setting by varjolintu · Pull Request #2570 · keepassxreboot/keepassxc-browserWhen the extension is installed for the first time, common default settings are shown to user. A lot of issues are made because e.g. HTTP Basic Auth or passkeys option is actually disabled. The PR ...
KeePassXC
@keepassxc.org

🚨 *Attention!* We were made aware of a fake “KeePassXC Password Manager Pro” repository on GitHub that links to unverified external binary downloads. - There is NO Pro version of KeePassXC! - You get all the “Pro” features with the regular version. 1/2

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KeePassXC
@keepassxc.org

🚨 *Attention!* We were made aware of a fake “KeePassXC Password Manager Pro” repository on GitHub that links to unverified external binary downloads. - There is NO Pro version of KeePassXC! - You get all the “Pro” features with the regular version. 1/2

KeePassXC
@keepassxc.org

FYI: The "Download" link goes through I series of redirects with several obfuscated JavaScript pages in between. I didn't open it in a browser and therefore didn't spend the time to resolve the full chain to the final download, but the fact alone that these obfuscations are there speaks for itself.

KeePassXC
@keepassxc.org

Hey there, looks like #KeePassXC is relevant enough that 🤡 #AI #slop security foo companies now target our keywords on Google mobile search. What do you think would happen if suddenly lots of people started clicking those ads without actually buying anything?!🧐😁🤑

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