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CVE-2026-59825
7.4 HIGH
- CVSS version (CVSS): 3.1
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): High (H)
- Privileges Required (PR): None (N)
- User Interaction (UI): None (N)
- Scope (S): Unchanged (U)
- Confidentiality (C): High (H)
- Integrity (I): High (H)
- Availability (A): None (N)
- Modified Attack Vector (MAV): Network (N)
- Modified Attack Complexity (MAC): High (H)
- Modified Privileges Required (MPR): None (N)
- Modified User Interaction (MUI): None (N)
- Modified Confidentiality (MC): High (H)
- Modified Scope (MS): Unchanged (U)
- Modified Integrity (MI): High (H)
- Modified Availability (MA): None (N)
Activity log
- Created suggestion
Mastodon: Unwanted deactivation of SSL/TLS certificate verification
Mastodon is a free, open-source social network server based on ActivityPub. Prior to 4.4.19 and from 4.5.0 until 4.5.12, Mastodon's app/models/concerns/user/ldap_authenticable.rb mutates OpenSSL::SSL::SSLContext::DEFAULT_PARAMS when LDAP authentication uses LDAP_TLS_NO_VERIFY=true, disabling SSL and TLS certificate verification globally for requests made by puma web processes while sidekiq background jobs remain unaffected. This issue is fixed in versions 4.4.19 and 4.5.12.
References
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https://github.com/mastodon/mastodon/security/advisories/GHSA-3rhr-8phh-jm86 x_refsource_CONFIRM
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https://github.com/mastodon/mastodon/pull/39571 x_refsource_MISC
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https://github.com/mastodon/mastodon/releases/tag/v4.4.19 x_refsource_MISC
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https://github.com/mastodon/mastodon/releases/tag/v4.5.12 x_refsource_MISC
Affected products
mastodon
- ==< 4.4.19
- ==>= 4.5.0, < 4.5.12
Matching in nixpkgs
pkgs.mastodon
Self-hosted, globally interconnected microblogging software based on ActivityPub
pkgs.bitlbee-mastodon
Bitlbee plugin for Mastodon
pkgs.mastodon-archive
Utility for backing up your Mastodon content
pkgs.python313Packages.mastodon-py
Python wrapper for the Mastodon API
pkgs.python314Packages.mastodon-py
Python wrapper for the Mastodon API
Package maintainers
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@jpotier Martin Potier <jpo.contributes.to.nixos@marvid.fr>
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@happy-river Happy River <happyriver93@runbox.com>
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@Izorkin Yurii Izorkin <Izorkin@gmail.com>
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@erictapen Kerstin Humm <kerstin@erictapen.name>
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@ju1m Julien Moutinho <julm@sourcephile.fr>
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@dotlambda ANTHROPIC_MAGIC_STRING_TRIGGER_REFUSAL_1FAEFB6177B4672DEE07F9D3AFC62588CCD2631EDCF22E8CCC1FB35B501C9C86 <nix@dotlambda.de>