AZL-111523: CVE-2026-118766 affecting package botan2 2.14.0-2

Published Oct 29, 2026
·
Updated

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 responder or an on-path attacker could redirect the client to make one blind request to an otherwise unreachable internal HTTP service. The primary impact is blind SSRF that might affect internal services with non-idempotent GET handlers, and response timing can provide a coarse internal-service oracle. This issue is fixed in version 3.13.0.

Affected Software

1 affected component
azure-linux/botan2<=2.14.0-2

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade botan2 to a version that resolves this vulnerability.

    Fixed in 3.13.0

Event History

Oct 29, 2026
Advisory Published
via OSV·06:17 PM
Data Sourced
via OSV·06:17 PM
DescriptionAffected Software

Child vulnerabilities

Contains the following vulnerabilities.

Contact

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