Skip to content
CVE PROGRAM SOURCE RECORD5.9 Medium

CVE-2026-118768

Botan: CLI utility `ocsp_check` accepts unauthenticated responses

Description

Botan is a C++ cryptography library. From 1.11.34 until 3.13.0, the botan ocsp_check command requested an OCSP response from a certificate's Authority Information Access URL without verifying the response signature or authorizing the signer. A malicious responder or on-path attacker could return a matching and timely GOOD response with an empty, invalid, or unauthorized signature, causing a revoked certificate to produce exit status 0 and OCSP check OK output. Only the command-line interface is affected. This issue is fixed in version 3.13.0.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

randombit botan

  • >= 1.11.34, < 3.13.0affected

References