{"cve":"CVE-2026-116585","nvd":{"published":"2026-10-26T22:16:54.910","modified":"2026-10-26T22:16:54.910","status":"Received","description":"Go JOSE provides an implementation of the Javascript Object Signing and Encryption set of standards in Go, including support for JSON Web Encryption (JWE), JSON Web Signature (JWS), and JSON Web Token (JWT) standards. Prior to 4.1.5, decrypting untrusted JWE ciphertext with A128CBC-HS256, A192CBC-HS384, or A256CBC-HS512 can pass an empty ciphertext buffer to CBC-HMAC unpadding. Insufficient validation allows the empty buffer to be indexed, causing a panic and denial of service. Applications that decrypt attacker-controlled ciphertext with one of these content-encryption algorithms are affected. This issue is fixed in version 4.1.5.","cvss_v4":{"vector":"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","score":6.9},"cvss_v3":null,"cwes":["CWE-129"],"references":["https://github.com/go-jose/go-jose/commit/35883f7999e87cbd1b1f4cda07fdad8cd71c3dd6","https://github.com/go-jose/go-jose/commit/74114c2fa22669a2b2a296746eaa82e15566fd54","https://github.com/go-jose/go-jose/pull/292","https://github.com/go-jose/go-jose/releases/tag/v4.1.5","https://github.com/go-jose/go-jose/security/advisories/GHSA-4w3g-jfj2-cw2q"],"products":[],"source":"nvd","synced_at":"2026-10-26T22:42:08.266559266+00:00"},"epss":null,"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}