{"api_version":"1","generated_at":"2026-05-29T16:23:38+00:00","cve":"CVE-2026-41565","urls":{"html":"https://cve.report/CVE-2026-41565","api":"https://cve.report/api/cve/CVE-2026-41565.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-41565","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-41565"},"summary":{"title":"CryptX versions before 0.088_001 for Perl have a stack buffer overflow in four AEAD decrypt_verify helpers","description":"CryptX versions before 0.088_001 for Perl have a stack buffer overflow in four AEAD decrypt_verify helpers.\n\nThe gcm_decrypt_verify, ccm_decrypt_verify, chacha20poly1305_decrypt_verify and eax_decrypt_verify XS routines copied the caller-supplied authentication tag into a fixed 144-byte stack buffer (MAXBLOCKSIZE) without checking the supplied length. A longer tag overwrites the stack past the buffer. Version 0.088 added the clamp to gcm_decrypt_verify, and 0.088_001 added it to the other three.\n\nAny caller of an affected helper that forwards an attacker-controlled tag longer than the buffer can trigger the overflow.","state":"PUBLISHED","assigner":"CPANSec","published_at":"2026-05-28 16:16:22","updated_at":"2026-05-29 15:29:42"},"problem_types":["CWE-121","CWE-121 CWE-121 Stack-based Buffer Overflow"],"metrics":[],"references":[{"url":"http://www.openwall.com/lists/oss-security/2026/05/28/10","name":"http://www.openwall.com/lists/oss-security/2026/05/28/10","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/DCIT/perl-CryptX/commit/7e56347d420aaf43b2ee1586f4a230492ccf1642.patch","name":"https://github.com/DCIT/perl-CryptX/commit/7e56347d420aaf43b2ee1586f4a230492ccf1642.patch","refsource":"9b29abf9-4ab0-4765-b253-1875cd9b441e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://metacpan.org/release/MIK/CryptX-0.088_001","name":"https://metacpan.org/release/MIK/CryptX-0.088_001","refsource":"9b29abf9-4ab0-4765-b253-1875cd9b441e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/DCIT/perl-CryptX/commit/57e69e541b0718ca8724c2f61514322a2d859bc1.patch","name":"https://github.com/DCIT/perl-CryptX/commit/57e69e541b0718ca8724c2f61514322a2d859bc1.patch","refsource":"9b29abf9-4ab0-4765-b253-1875cd9b441e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-41565","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41565","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"MIK","product":"CryptX","version":"affected 0.088_001 custom","platforms":[]}],"timeline":[{"source":"CNA","time":"2026-04-21T00:00:00.000Z","lang":"en","value":"Issue reported."},{"source":"CNA","time":"2026-04-23T00:00:00.000Z","lang":"en","value":"Version 0.088 released with fix for gcm_decrypt_verify."},{"source":"CNA","time":"2026-04-28T00:00:00.000Z","lang":"en","value":"Version 0.088_001 released with fixes for the remaining three helpers."}],"solutions":[{"source":"CNA","title":"","value":"Upgrade to CryptX 0.088_001 or later.","time":"","lang":"en"}],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2026-05-28T22:33:27.672Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"url":"http://www.openwall.com/lists/oss-security/2026/05/28/10"}],"title":"CVE Program Container"}],"cna":{"affected":[{"collectionURL":"https://cpan.org/modules","defaultStatus":"unaffected","packageName":"CryptX","product":"CryptX","programFiles":["inc/CryptX_AuthEnc_GCM.xs.inc","inc/CryptX_AuthEnc_CCM.xs.inc","inc/CryptX_AuthEnc_ChaCha20Poly1305.xs.inc","inc/CryptX_AuthEnc_EAX.xs.inc"],"programRoutines":[{"name":"gcm_decrypt_verify"},{"name":"ccm_decrypt_verify"},{"name":"chacha20poly1305_decrypt_verify"},{"name":"eax_decrypt_verify"}],"repo":"https://github.com/DCIT/perl-CryptX","vendor":"MIK","versions":[{"lessThan":"0.088_001","status":"affected","version":"0","versionType":"custom"}]}],"descriptions":[{"lang":"en","value":"CryptX versions before 0.088_001 for Perl have a stack buffer overflow in four AEAD decrypt_verify helpers.\n\nThe gcm_decrypt_verify, ccm_decrypt_verify, chacha20poly1305_decrypt_verify and eax_decrypt_verify XS routines copied the caller-supplied authentication tag into a fixed 144-byte stack buffer (MAXBLOCKSIZE) without checking the supplied length. A longer tag overwrites the stack past the buffer. Version 0.088 added the clamp to gcm_decrypt_verify, and 0.088_001 added it to the other three.\n\nAny caller of an affected helper that forwards an attacker-controlled tag longer than the buffer can trigger the overflow."}],"problemTypes":[{"descriptions":[{"cweId":"CWE-121","description":"CWE-121 Stack-based Buffer Overflow","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-05-28T14:13:19.301Z","orgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","shortName":"CPANSec"},"references":[{"tags":["patch"],"url":"https://github.com/DCIT/perl-CryptX/commit/57e69e541b0718ca8724c2f61514322a2d859bc1.patch"},{"tags":["patch"],"url":"https://github.com/DCIT/perl-CryptX/commit/7e56347d420aaf43b2ee1586f4a230492ccf1642.patch"},{"tags":["release-notes"],"url":"https://metacpan.org/release/MIK/CryptX-0.088_001"}],"solutions":[{"lang":"en","value":"Upgrade to CryptX 0.088_001 or later."}],"source":{"discovery":"UNKNOWN"},"timeline":[{"lang":"en","time":"2026-04-21T00:00:00.000Z","value":"Issue reported."},{"lang":"en","time":"2026-04-23T00:00:00.000Z","value":"Version 0.088 released with fix for gcm_decrypt_verify."},{"lang":"en","time":"2026-04-28T00:00:00.000Z","value":"Version 0.088_001 released with fixes for the remaining three helpers."}],"title":"CryptX versions before 0.088_001 for Perl have a stack buffer overflow in four AEAD decrypt_verify helpers","x_generator":{"engine":"cpansec-cna-tool 0.1"}}},"cveMetadata":{"assignerOrgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","assignerShortName":"CPANSec","cveId":"CVE-2026-41565","datePublished":"2026-05-28T14:13:19.301Z","dateReserved":"2026-04-21T12:45:20.133Z","dateUpdated":"2026-05-28T22:33:27.672Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-28 16:16:22","lastModifiedDate":"2026-05-29 15:29:42","problem_types":["CWE-121","CWE-121 CWE-121 Stack-based Buffer Overflow"],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"41565","Ordinal":"1","Title":"CryptX versions before 0.088_001 for Perl have a stack buffer ov","CVE":"CVE-2026-41565","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"41565","Ordinal":"1","NoteData":"CryptX versions before 0.088_001 for Perl have a stack buffer overflow in four AEAD decrypt_verify helpers.\n\nThe gcm_decrypt_verify, ccm_decrypt_verify, chacha20poly1305_decrypt_verify and eax_decrypt_verify XS routines copied the caller-supplied authentication tag into a fixed 144-byte stack buffer (MAXBLOCKSIZE) without checking the supplied length. A longer tag overwrites the stack past the buffer. Version 0.088 added the clamp to gcm_decrypt_verify, and 0.088_001 added it to the other three.\n\nAny caller of an affected helper that forwards an attacker-controlled tag longer than the buffer can trigger the overflow.","Type":"Description","Title":"CryptX versions before 0.088_001 for Perl have a stack buffer ov"}]}}}