CVE-2026-32883 (GCVE-0-2026-32883)

Vulnerability from cvelistv5 – Published: 2026-03-30 20:36 – Updated: 2026-04-02 14:10
VLAI?
Title
Botan: Missing OCSP Response Signature Verification Allows MitM Certificate Revocation Bypass
Summary
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.
Severity ?
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
Impacted products
Vendor Product Version
randombit botan Affected: >= 3.0.0, < 3.11.0
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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