CVE-2026-59825

{"id": "CVE-2026-59825", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-59825", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-08-18T15:51:09.488217Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.4, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 2.2}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "mastodon", "product": "mastodon", "versions": [{"status": "affected", "version": "< 4.4.19"}, {"status": "affected", "version": ">= 4.5.0, < 4.5.12"}]}]}], "published": "2026-08-18T15:16:55.623", "references": [{"url": "https://github.com/mastodon/mastodon/commit/2ccb6ef277e725d1932295690cf8ab9d3dc03149", "source": "security-advisories@github.com"}, {"url": "https://github.com/mastodon/mastodon/commit/5748d0b16ea09001e0933f76c7afe814e09652ef", "source": "security-advisories@github.com"}, {"url": "https://github.com/mastodon/mastodon/commit/761c61b42590a2fd91442fc15a0a7583e48bbea4", "source": "security-advisories@github.com"}, {"url": "https://github.com/mastodon/mastodon/pull/39571", "source": "security-advisories@github.com"}, {"url": "https://github.com/mastodon/mastodon/releases/tag/v4.4.19", "source": "security-advisories@github.com"}, {"url": "https://github.com/mastodon/mastodon/releases/tag/v4.5.12", "source": "security-advisories@github.com"}, {"url": "https://github.com/mastodon/mastodon/security/advisories/GHSA-3rhr-8phh-jm86", "source": "security-advisories@github.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-295"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2026-09-16T13:42:44.293", "sourceIdentifier": "security-advisories@github.com"}