botan vulnerabilities
CVEs whose affected-version data names the botan package. Each record lists the affected and patched versions; check a specific version with the dependency checker or POST /api/sbom.
5 CVEsRSS
CVE-2026-118767Medium· 4.8Botan: Python binding bcrypt APIs truncate passwords containing embedded NULs
Botan is a C++ cryptography library. From 1.11.22 until 3.13.0, Botan's Python binding converted Python strings containing U+0000 to const char* values without consistently rejecting the embedded NUL, causing bcrypt and check_bcrypt to p…
CVE-2026-118769Critical· 9.2Botan: Integer overflow when reporting block size in FFI can cause memory corruption
Botan is a C++ cryptography library. From 2.1.0 until 3.13.0, the Botan C API function botan_block_cipher_block_size converted a size_t block size to int without a bounds check. In an application that accepts external algorithm parameter…
CVE-2026-118765High· 7.3Botan: AutoSeeded_RNG can become reinitialized from predictable data after clearing state
Botan is a C++ cryptography library. From 3.7.0 until 3.13.0, an application that calls AutoSeeded_RNG::clear() and then calls randomize with an empty output buffer while the generator is unseeded can cause AutoSeeded_RNG to mark itself …
CVE-2026-118768Medium· 5.9Botan: CLI utility `ocsp_check` accepts unauthenticated responses
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 sig…
CVE-2026-118766Medium· 6.1Botan: Online OCSP redirects enable blind requests to internal HTTP services
Botan is a C++ cryptography library. Prior to 3.13.0, Botan's online OCSP client allowed a single HTTP redirect while posting an OCSP request to the URI in a certificate's Authority Information Access extension. A malicious OCSP responde…