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NixOS Security Triage

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Coordination and triage of security issues in nixpkgs227 Servers

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3 May 2026
@joerg:thalheim.ioMic92https://github.com/NixOS/nixpkgs/pull/516109 vaultwarden13:33:05
6 May 2026
@arcayr:mischief.expertarcayrhttps://github.com/NixOS/nixpkgs/pull/517132 apacheHttpd 2.4.66 -> 2.4.67 fixing cve-2026-23918 - https://httpd.apache.org/security/vulnerabilities_24.html / https://www.cve.org/CVERecord?id=CVE-2026-2391804:52:22
@vcunat:matrix.orgvcunat weblate is in need of backport to 25.11, in case anyone's interested.
https://github.com/NixOS/nixpkgs/pull/510728#issuecomment-4386087895
08:31:12
@lgian:erethon.comlgian joined the room.09:15:35
@pyrox:pyrox.devdish [Fox/It/She] Not critical but someone seems to be trying to do weird exfil backdoor attacks on nixpkgs via CI, see https://github.com/NixOS/nixpkgs/pull/517354 16:24:30
@pyrox:pyrox.devdish [Fox/It/She]afaik none of this works but i could be wrong so bringing it up here for visibility16:24:40
@pyrox:pyrox.devdish [Fox/It/She](it also seems to be using a very very expired webhook for exfil so i dont think this works anyways)16:25:55
@qyliss:fairydust.spaceAlyssa RossI reported the account to GitHub. An org owner could also block them from the org.16:29:05
@winter:catgirl.cloudWinter^ handling16:30:26
@tgerbet:matrix.orgtgerbetYeah they abuse a bunch of other repositories I have spotted one where they got some success, I'm reaching out to them16:31:30
@codec:fnord.cxcodec joined the room.16:33:12
@hexa:lossy.networkhexasame17:42:41
@hexa:lossy.networkhexablocked17:43:32
@williamvds:matrix.orgaveryv joined the room.19:06:21
@williamvds:matrix.orgaveryvHiya, I'm looking at handling https://github.com/NixOS/nixpkgs/issues/517209, pi-hole vuln, coming back to it after a while of neglecting it. Another contributor has been working on updating the package. Annoyingly it now depends on mbedtls 4.0, which that contributor has packaged here https://github.com/NixOS/nixpkgs/pull/509801. But they're getting nixpkgs-vet errors blocking it. Is it possible to disable nixpkgs-vet so we can get the vuln fixed and refactor later?19:17:01
@kuflierl:matrix.orgkuflierlInteresting attack. But i am quite sure that we do not build, only eval in ci and send stuff to hydra where github tokens are non-existant19:17:02
@kuflierl:matrix.orgkuflierl* Interesting attack. But i am quite sure that we do not build, only eval in ci and send builds to hydra where github tokens are non-existant19:17:52
@williamvds:matrix.orgaveryv* Hiya, I'm looking at handling https://github.com/NixOS/nixpkgs/issues/517209, pi-hole vuln, coming back to it after a while of neglecting it. Another contributor has been working on updating the package. Annoyingly it now depends on mbedtls 4.0, which that contributor has packaged here https://github.com/NixOS/nixpkgs/pull/509801. But they're getting nixpkgs-vet errors blocking it. Is it possible to disable nixpkgs-vet for the PR so we can get the vuln fixed and refactor later?19:18:04
@winter:catgirl.cloudWinterwe do not send ANYTHING to hydra from github ci.19:24:44
@hexa:lossy.networkhexatangential https://docs.lix.systems/manual/lix/stable/installation/multi-user.html#the-lix-daemon-as-a-security-non-boundary19:25:55
@kuflierl:matrix.orgkuflierlIs this outdated information? i remember seing seeing my changes in the hydra build queue for days until hydra picks it up19:26:32
@kuflierl:matrix.orgkuflierlIt was used more before we switched somewhat to github actions19:26:57
@leona:leona.isleonaGHA is not involved in this process.19:27:08
@jappie:jappie.devjappie the nixpkgs-vet errors in question say that the package should be added under pkgs/by-name & that __structuredAttrs should be enabled, is there a reason why you can't ask the author of the PR to do these things? if they're unresponsive, you can open a new PR & amend their work
also, I think this discussion is more suited for https://matrix.to/#/#dev:nixos.org, this channel is for triaging security issues
19:27:31
@kuflierl:matrix.orgkuflierlElaborate19:27:58
@jappie:jappie.devjappie maybe elaborate in #NixOS Security Discussions :p 19:28:43
@jappie:jappie.devjappie maybe elaborate in #NixOS Security Discussions or the CI channel or something :p 19:28:54
7 May 2026
@mdaniels5757:matrix.orgmdaniels5757Are you thinking of Ofborg?01:55:11
@mdaniels5757:matrix.orgmdaniels5757* kuflierl: Are you thinking of Ofborg?01:55:31
@vcunat:matrix.orgvcunathydra.nixos.org only reads the git repo (some particular branches). There's no other interaction with GitHub.06:38:17

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