Botan: CLI utility `ocsp_check` accepts unauthenticated responses
Impact
Botan's CLI utility `ocsp_check` in versions 1.11.34 to 3.13.0 accepts unauthenticated OCSP responses, allowing a malicious responder or on-path attacker to return a false GOOD response. The issue is fixed in version 3.13.0. Only the command-line interface is affected.
Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.Affected packages
Affected products
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randombit · GitHub_M
botan
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randombit · GitHub_M
botan
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affected
>= 1.11.34, < 3.13.0
Other versions: unknown
Original source 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.
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Evidence available
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Original records
CVE-2026-118768View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.
cve.new JSON →Underlying weaknesses
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