{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-118767", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-10-28T19:20:05.017Z", "datePublished": "2026-10-29T17:17:24.323Z", "dateUpdated": "2026-10-29T17:17:24.323Z"}, "containers": {"cna": {"title": "Botan: Python binding bcrypt APIs truncate passwords containing embedded NULs", "problemTypes": [{"descriptions": [{"cweId": "CWE-158", "lang": "en", "description": "CWE-158: Improper Neutralization of Null Byte or NUL Character", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/randombit/botan/security/advisories/GHSA-w8gj-5xrm-gvrp", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/randombit/botan/security/advisories/GHSA-w8gj-5xrm-gvrp"}, {"name": "https://github.com/randombit/botan/pull/5814", "tags": ["x_refsource_MISC"], "url": "https://github.com/randombit/botan/pull/5814"}, {"name": "https://github.com/randombit/botan/commit/5a4ac737e72e18a08eca848049e3dd38571c73b4", "tags": ["x_refsource_MISC"], "url": "https://github.com/randombit/botan/commit/5a4ac737e72e18a08eca848049e3dd38571c73b4"}], "affected": [{"vendor": "randombit", "product": "botan", "versions": [{"version": ">= 1.11.22, < 3.13.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-29T17:17:24.323Z"}, "descriptions": [{"lang": "en", "value": "Botan is a C++ cryptography library. From 1.11.22 until 3.13.0, Botan's Python binding converted Python strings containing U+0000 to const char* values without consistently rejecting the embedded NUL, causing bcrypt and check_bcrypt to process only the prefix before the NUL. Applications could validate a longer password but hash a shorter effective value, allowing application password-policy bypass; scrypt and argon2 are unaffected. This issue is fixed in version 3.13.0."}], "source": {"advisory": "GHSA-w8gj-5xrm-gvrp", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "botan", "vendor": "randombit", "versions": [{"status": "affected", "version": ">= 1.11.22, < 3.13.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Botan is a C++ cryptography library. From 1.11.22 until 3.13.0, Botan's Python binding converted Python strings containing U+0000 to const char* values without consistently rejecting the embedded NUL, causing bcrypt and check_bcrypt to process only the prefix before the NUL. Applications could validate a longer password but hash a shorter effective value, allowing application password-policy bypass; scrypt and argon2 are unaffected. This issue is fixed in version 3.13.0."}], "id": "CVE-2026-118767", "lastModified": "2026-10-29T18:17:28.853", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 2.5, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-10-29T18:17:28.853", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/randombit/botan/commit/5a4ac737e72e18a08eca848049e3dd38571c73b4"}, {"source": "security-advisories@github.com", "url": "https://github.com/randombit/botan/pull/5814"}, {"source": "security-advisories@github.com", "url": "https://github.com/randombit/botan/security/advisories/GHSA-w8gj-5xrm-gvrp"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-158"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"created": "2026-10-29T18:30:14.422907+00:00", "updated": "2026-10-29T18:30:14.422914+00:00", "vendors": []}