Security Advisory

CVE-2026-6091

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-06-25 16:46:12

Last updated 2026-06-25 17:58:31

Assigner wolfSSL

CVSS score 6.0

State PUBLISHED

Description

Partial-chain certificate verification may accept chains that terminate at a peer-supplied, untrusted intermediate certificate rather than a trusted anchor. An attacker could present a chain that ends at an intermediate they control and have it accepted as valid. This affects the OpenSSL compatibility certificate-path-building path (wolfSSL_X509_verify_cert / X509_STORE, OPENSSL_EXTRA) when the X509_V_FLAG_PARTIAL_CHAIN verify flag is enabled.

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