CVE-2023-23928 | BDVDB-2026-194439 Detail
ulrikstridreason-jose
Description#
reason-jose is a JOSE implementation in ReasonML and OCaml.`Jose.Jws.validate` does not check HS256 signatures. This allows tampering of JWS header and payload data if the service does not perform additional checks. Such tampering could expose applications using reason-jose to authorization bypass. Applications relying on JWS claims assertion to enforce security boundaries may be vulnerable to privilege escalation. This issue has been patched in version 0.8.2.
Impact#
Per CVSS v3.1: confidentiality impact low, integrity impact high, availability impact none. Attack vector: network.
Weaknesses#
- CWE-347 Improper Verification of Cryptographic Signature
References#
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.