{"id":"CVE-2026-89319","title":"JweDirectDecryptorBlock.Decrypt: unchecked _thales_aad length header reachable with forged tag → index-out-of-range / slice-bounds panic and unbounded allocation","summary":"`JweDirectDecryptorBlock.Decrypt` read a 64-bit plaintext length from the `_thales_aad` protected-header field and used it without any validation. A truncated field panics `binary.BigEndian.Uint64`, an oversized value drives an unbounded…","severity":"medium","cvss":6.3,"cvssVector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","cvssSource":"cna","cwe":["CWE-129"],"vendor":"Eclipse Foundation","product":"github.com/ThalesGroup/gose","affected":["github.com/ThalesGroup/gose >= 0.9.0 <= 0.13.0-rc1","github.com/eclipse-keypont/gose < 1.0.0-rc1"],"published":"2026-10-23","updated":"2026-10-23","sourceUpdated":"2026-10-23T08:54:37.681Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-89319","references":[{"url":"https://github.com/eclipse-keypont/gose/security/advisories/GHSA-4gj8-hg2r-gw6q"}],"tags":["cve.org"],"ingestedAt":"2026-10-23T09:20:44.058Z","slug":"CVE-2026-89319","body":"## Overview\n\n`JweDirectDecryptorBlock.Decrypt` read a 64-bit plaintext length from the `_thales_aad` protected-header field and used it without any validation. A truncated field panics `binary.BigEndian.Uint64`, an oversized value drives an unbounded allocation, and a value larger than the decrypted block panics with a slice-bounds error.\n\n## Affected\n\n- `github.com/ThalesGroup/gose >= 0.9.0 <= 0.13.0-rc1`\n- `github.com/eclipse-keypont/gose < 1.0.0-rc1`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":35,"depthScoreParts":{"impact":34.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}