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.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 1
- First seenCVSS 5.9 · randombitNVD modified 2026-10-29 17:20
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 3
- https://github.com/randombit/botan/security/advisories/GHSA-mpr7-9494-4qcw x_refsource_confirm
- https://github.com/randombit/botan/pull/5825 x_refsource_misc
- https://github.com/randombit/botan/commit/46b2a9ca59b0797184fbf7537495bda6e61a1983 x_refsource_misc