{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-64682", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-07-20T17:12:12.892Z", "datePublished": "2026-11-11T04:04:09.388Z", "dateUpdated": "2026-11-12T17:58:26.874Z"}, "containers": {"cna": {"title": "AstroBlocks: Admin session tokens can be forged due to a hard-coded fallback JWT secret and a mismatched environment variable name", "problemTypes": [{"descriptions": [{"cweId": "CWE-321", "lang": "en", "description": "CWE-321: Use of Hard-coded Cryptographic Key", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-798", "lang": "en", "description": "CWE-798: Use of Hard-coded Credentials", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/NauelG/astro-blocks/security/advisories/GHSA-mfcg-m7j5-7v72", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/NauelG/astro-blocks/security/advisories/GHSA-mfcg-m7j5-7v72"}, {"name": "https://github.com/NauelG/astro-blocks/pull/51", "tags": ["x_refsource_MISC"], "url": "https://github.com/NauelG/astro-blocks/pull/51"}, {"name": "https://github.com/NauelG/astro-blocks/commit/fd83bf0b37a756363f718e134c16e448da09a74d", "tags": ["x_refsource_MISC"], "url": "https://github.com/NauelG/astro-blocks/commit/fd83bf0b37a756363f718e134c16e448da09a74d"}, {"name": "https://github.com/NauelG/astro-blocks/releases/tag/v3.4.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/NauelG/astro-blocks/releases/tag/v3.4.0"}], "affected": [{"vendor": "NauelG", "product": "astro-blocks", "versions": [{"version": "< 3.4.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-11-11T04:04:09.388Z"}, "descriptions": [{"lang": "en", "value": "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 \u2014 creating/deleting content, users, media, redirects, and configuration. This issue has been patched in version 3.4.0."}], "source": {"advisory": "GHSA-mfcg-m7j5-7v72", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-11-12T16:53:25.534762Z", "id": "CVE-2026-64682", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-11-12T17:58:26.874Z"}}]}}

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{"affected": [{"affectedData": [{"product": "astro-blocks", "vendor": "NauelG", "versions": [{"status": "affected", "version": "< 3.4.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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 \u2014 creating/deleting content, users, media, redirects, and configuration. This issue has been patched in version 3.4.0."}], "id": "CVE-2026-64682", "lastModified": "2026-11-12T22:18:51.470", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-64682", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-11-12T16:53:25.534762Z", "version": "2.0.3"}}]}, "published": "2026-11-11T05:19:52.120", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/NauelG/astro-blocks/commit/fd83bf0b37a756363f718e134c16e448da09a74d"}, {"source": "security-advisories@github.com", "url": "https://github.com/NauelG/astro-blocks/pull/51"}, {"source": "security-advisories@github.com", "url": "https://github.com/NauelG/astro-blocks/releases/tag/v3.4.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/NauelG/astro-blocks/security/advisories/GHSA-mfcg-m7j5-7v72"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-321"}, {"lang": "en", "value": "CWE-798"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}