CVE-2026-118768
Botan: CLI utility `ocsp_check` accepts unauthenticated responses
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-347 |
| Vendor | randombit |
| Product | botan |
| Published | Oct 29, 2026 |
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Affected Versions
randombit / botan
>= 1.11.34, < 3.13.0