MEDIUM 5.9 NVD
CVE-2026-118768
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 Informati
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.
References
- https://github.com/randombit/botan/commit/46b2a9ca59b0797184fbf7537495bda6e61a1983
- https://github.com/randombit/botan/pull/5825
- https://github.com/randombit/botan/security/advisories/GHSA-mpr7-9494-4qcw
This medium severity vulnerability with a CVSS score of 5.9 was published on 2026-10-29 via NVD.
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