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CVE PROGRAM SOURCE RECORD5.9 Medium

CVE-2026-32883

Botan: Missing OCSP Response Signature Verification Allows MitM Certificate Revocation Bypass

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Status
Published
Published
Updated
Assigning organization
GitHub_M

Description

Botan is a C++ cryptography library. From version 3.0.0 to before version 3.11.0, during X509 path validation, OCSP responses were checked for an appropriate status code, but critically omitted verifying the signature of the OCSP response itself. This issue has been patched in version 3.11.0.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

randombit botan

  • >= 3.0.0, < 3.11.0affected

References