5.9
Medium
CVE-2026-118768 Botan is a C++ cryptography library
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 and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Botan 1.11 | 1.11.34 → < 3.13.0 | 3.13.0 |
Other CVEs of Botan
The 17 CVEs of Botan →
CVE-2026-104267
Botan: scrypt V-buffer heap overflow on 32-bit from constructor-accepted parameters
4.1
Medium
CVE-2026-48057
Botan: directoryName nameConstraint bypass via multi-AVA RDN flattening in matches_dn
2.1
Low
CVE-2026-118769
Botan is a C++ cryptography library
9.2
Critical
CVE-2026-118767
Botan is a C++ cryptography library
4.8
Medium