{"id":"CVE-2026-89318","title":"JweRsaKeyEncryptionDecryptorImpl.Decrypt panics on attacker-chosen IV length (stdlib GCM.Open reached without nonce-size check)","summary":"`JweRsaKeyEncryptionDecryptorImpl.Decrypt` passed the JWE's initialization vector to `cipher.AEAD.Open` without checking its length. The Go standard library **panics** rather than returning an error when a GCM nonce is not exactly `Nonce…","severity":"medium","cvss":6.9,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","cvssSource":"cna","cwe":["CWE-248"],"vendor":"Eclipse Foundation","product":"github.com/ThalesGroup/gose","affected":["github.com/ThalesGroup/gose >= 0.8.0 <= 0.13.0-rc1","github.com/eclipse-keypont/gose < 1.0.0-rc4"],"published":"2026-10-23","updated":"2026-10-23","sourceUpdated":"2026-10-23T08:51:55.194Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-89318","references":[{"url":"https://github.com/eclipse-keypont/gose/security/advisories/GHSA-265w-83cm-777q"}],"tags":["cve.org"],"ingestedAt":"2026-10-23T09:20:44.058Z","slug":"CVE-2026-89318","body":"## Overview\n\n`JweRsaKeyEncryptionDecryptorImpl.Decrypt` passed the JWE's initialization vector to `cipher.AEAD.Open` without checking its length. The Go standard library **panics** rather than returning an error when a GCM nonce is not exactly `NonceSize()` bytes, so a JWE carrying a wrong-sized IV crashes the decrypting goroutine.\n\n## Affected\n\n- `github.com/ThalesGroup/gose >= 0.8.0 <= 0.13.0-rc1`\n- `github.com/eclipse-keypont/gose < 1.0.0-rc4`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":38,"depthScoreParts":{"impact":38,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}