{"id":"CVE-2026-85783","aliases":[],"cve":{"records":[{"id":"CVE-2026-85783","source":"CPANSec","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-09-04T16:29:19.634Z","published":"2026-10-20T21:29:03.284Z","modified":"2026-10-30T13:01:33.954Z"}],"publishers":[{"name":"CPANSec","role":"CNA","organizationId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","modified":"2026-10-20T21:29:03.284Z"},{"name":"CVE","role":"ADP","organizationId":"af854a3a-2127-422b-91ae-364da2661108","modified":"2026-10-21T00:17:19.299Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-10-30T13:01:33.954Z"}],"references":[{"url":"https://metacpan.org/release/GETTY/Crypt-Age-0.004/changes","tags":["release-notes"],"source":"CPANSec"},{"url":"http://www.openwall.com/lists/oss-security/2026/10/20/39","tags":[],"source":"CVE"}],"weaknesses":[{"id":"CWE-770","description":"CWE-770 Allocation of Resources Without Limits or Throttling","source":"CPANSec"},{"id":"CWE-405","description":"CWE-405 Asymmetric Resource Consumption (Amplification)","source":"CPANSec"}],"applicability":[],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-10-30T13:01:30.141838Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"yes"},{"name":"Technical Impact","value":"partial"}]}]},"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","titleSource":"CPANSec","descriptionSource":"CPANSec","description":"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.","score":7.5,"severity":"high","published":"2026-10-20T21:29:03.284Z","modified":"2026-10-30T13:01:33.954Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"","name":"Crypt-Age","platforms":[],"versions":[{"version":"0","status":"affected","lessThan":"0.004","versionType":"custom"}],"defaultStatus":"unaffected","packageURL":"pkg:cpan/Crypt-Age","cpes":[],"source":"CPANSec","url":"https://www.cve.org/CVERecord?id=CVE-2026-85783"}],"remediation":[{"text":"Upgrade to Crypt-Age 0.004 or later.","source":"CPANSec","url":"https://www.cve.org/CVERecord?id=CVE-2026-85783"}],"references":["https://metacpan.org/release/GETTY/Crypt-Age-0.004/changes","http://www.openwall.com/lists/oss-security/2026/10/20/39"],"sources":[{"name":"CVE","id":"CVE-2026-85783","modified":"2026-10-30T13:01:33.954Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-85783"}],"assessments":[{"source":"CISA-ADP","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5}],"sourceAffected":[],"observedAt":"2026-10-30T15:00:54.977Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T12:15:32.680Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[],"aiSummary":{"text":"Crypt::Age versions before 0.004 for Perl are vulnerable to CPU exhaustion via an unbounded number of recipient stanzas. Each stanza costs an X25519 scalar multiplication in unwrap_file_key. An attacker can exploit this with local access to decrypt files.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-30T15:11:12.632Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-85783"}]}}