{"id":"CVE-2026-64682","summary":"AstroBlocks: Admin session tokens can be forged due to a hard-coded fallback JWT secret and a mismatched environment variable name","details":"AstroBlocks is a block-first CMS for Astro projects. Prior to version 3.4.0, admin session tokens can be forged due to a hard-coded fallback JWT secret and a mismatched environment variable name. An attacker who knows the public fallback value (readable in the published package) can forge a valid session token with role: \"owner\" and obtain full administrative control of the CMS — creating/deleting content, users, media, redirects, and configuration. This issue has been patched in version 3.4.0.","aliases":["GHSA-mfcg-m7j5-7v72"],"modified":"2026-11-12T02:48:38.473747444Z","published":"2026-11-11T04:04:09.388Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-321","CWE-798"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64682.json","unresolved_ranges":[{"extracted_events":[{"range":[{"fixed":"3.4.0"}],"source":"AFFECTED_FIELD","strategy":"StringRangeExpression"}]},{"extracted_events":[{"range":[{"fixed":"3.4.0"},{"fixed":"3.4.0"}],"source":"DESCRIPTION"}]}]},"references":[{"type":"WEB","url":"https://github.com/NauelG/astro-blocks/releases/tag/v3.4.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64682.json"},{"type":"ADVISORY","url":"https://github.com/NauelG/astro-blocks/security/advisories/GHSA-mfcg-m7j5-7v72"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64682"},{"type":"FIX","url":"https://github.com/NauelG/astro-blocks/commit/fd83bf0b37a756363f718e134c16e448da09a74d"},{"type":"FIX","url":"https://github.com/NauelG/astro-blocks/pull/51"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nauelg/astro-blocks","events":[{"introduced":"0"},{"fixed":"fd83bf0b37a756363f718e134c16e448da09a74d"}],"database_specific":{"extracted_events":[{"source":"REFERENCES_COMMIT","range":[{"fixed":"fd83bf0b37a756363f718e134c16e448da09a74d"}]}]}}],"versions":["v3.3.2","v3.3.1","v3.3.0","v3.2.2","v3.2.1","v3.2.0","v3.1.1","v3.1.0","v3.0.3","v3.0.2","v3.0.1","v3.0.0","v2.0.0","v1.0.0","v0.14.0-alpha.4","v0.14.0-alpha.3","v0.14.0-alpha.2","v0.14.0-alpha.1","v0.13.0-alpha.2","v0.12.0-alpha.2","v0.12.0-alpha.1","v0.11.0-alpha.3","v0.11.0-alpha.2","v0.11.0-alpha.1","v0.10.0-alpha.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64682.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}