{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-41565","assignerOrgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","state":"PUBLISHED","assignerShortName":"CPANSec","dateReserved":"2026-04-21T12:45:20.133Z","datePublished":"2026-05-28T14:13:19.301Z","dateUpdated":"2026-05-29T15:53:39.530Z"},"containers":{"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":{"orgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","shortName":"CPANSec","dateUpdated":"2026-05-28T14:13:19.301Z"},"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"}},"adp":[{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/05/28/10"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2026-05-28T22:33:27.672Z"}},{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.5,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-05-29T15:53:14.685373Z","id":"CVE-2026-41565","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-05-29T15:53:39.530Z"}}]}}