CVEvulnerability
CVE-2026-59825
7.4 HIGH
Official page ↗
- Status
- Deferred
- Published
- 2026-08-18
- Last modified
- 2026-09-16
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.4 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- Weaknesses
- CWE-295
Description
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.
Related
Weakness · CWE (1)
- CWE-295 Improper Certificate Validation weakness
References
- https://github.com/mastodon/mastodon/commit/2ccb6ef277e725d1932295690cf8ab9d3dc03149 github.com
- https://github.com/mastodon/mastodon/commit/5748d0b16ea09001e0933f76c7afe814e09652ef github.com
- https://github.com/mastodon/mastodon/commit/761c61b42590a2fd91442fc15a0a7583e48bbea4 github.com
- https://github.com/mastodon/mastodon/pull/39571 github.com
- https://github.com/mastodon/mastodon/releases/tag/v4.4.19 github.com
- https://github.com/mastodon/mastodon/releases/tag/v4.5.12 github.com
- https://github.com/mastodon/mastodon/security/advisories/GHSA-3rhr-8phh-jm86 github.com