{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-85783","assignerOrgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","state":"PUBLISHED","assignerShortName":"CPANSec","dateReserved":"2026-09-04T16:29:19.634Z","datePublished":"2026-10-20T21:29:03.284Z","dateUpdated":"2026-10-21T00:17:19.299Z"},"containers":{"cna":{"affected":[{"collectionURL":"https://cpan.org/modules","defaultStatus":"unaffected","modules":["Crypt::Age"],"packageName":"Crypt-Age","packageURL":"pkg:cpan/Crypt-Age","programFiles":["lib/Crypt/Age/Header.pm"],"programRoutines":[{"name":"Crypt::Age::Header::parse_from_fh"},{"name":"Crypt::Age::Header::unwrap_file_key"}],"repo":"https://github.com/Getty/p5-crypt-age","versions":[{"lessThan":"0.004","status":"affected","version":"0","versionType":"custom"}]}],"descriptions":[{"lang":"en","value":"Crypt::Age versions before 0.004 for Perl allow CPU exhaustion via an unbounded number of recipient stanzas, each costing an X25519 scalar multiplication in unwrap_file_key.\n\nThe header parser accepts any number of recipient stanzas, and unwrap_file_key tries every identity against every X25519 stanza. Each attempt runs a scalar multiplication, an HKDF and a ChaCha20-Poly1305 open. The header MAC cannot be checked first, because its key comes from the file key, which only a successful unwrap produces.\n\nEach stanza is 98 bytes of attacker-chosen header and buys one scalar multiplication per identity held, and the file is rejected only after every one of them has run. A caller reaches this through decrypt, decrypt_file or decrypt_filehandle whenever it decrypts a file it did not write."}],"problemTypes":[{"descriptions":[{"cweId":"CWE-770","description":"CWE-770 Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-405","description":"CWE-405 Asymmetric Resource Consumption (Amplification)","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","shortName":"CPANSec","dateUpdated":"2026-10-20T21:29:03.284Z"},"references":[{"tags":["release-notes"],"url":"https://metacpan.org/release/GETTY/Crypt-Age-0.004/changes"}],"solutions":[{"lang":"en","value":"Upgrade to Crypt-Age 0.004 or later."}],"source":{"discovery":"UNKNOWN"},"title":"Crypt::Age versions before 0.004 for Perl allow CPU exhaustion via an unbounded number of recipient stanzas, each costing an X25519 scalar multiplication in unwrap_file_key","x_generator":{"engine":"cpansec-cna-tool 0.1"}},"adp":[{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/10/20/39"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2026-10-21T00:17:19.299Z"}}]}}