Is there a public exploit for CVE-2026-118768?

No public exploit for CVE-2026-118768 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-118768?

CVE-2026-118768 scores CVSS 5.9 (v4.0), rated medium.

5.9 Medium

Botan is a C++ cryptography library.

CVE-2026-118768

Botan is a C++ cryptography library. From 1.11.34 until 3.13.0, the botan ocspcheck 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.

Assessment

CVSS: 5.9 (v4.0)
Severity: Medium
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 29 October 2026
Last updated: 3 November 2026
Weakness: CWE-347
Assigner: security-advisories@github.com

CVSS vectorCVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

At the source

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