PT-2026-52528 · Wolfssl · Wolfssl
Dikai Zou
·
Published
2026-06-25
·
Updated
2026-06-25
·
CVE-2026-6091
CVSS v4.0
6.0
Medium
| Vector | AV:N/AC:L/AT:P/PR:L/UI:N/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 |
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.
Fix
Improper Certificate Validation
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Weakness Enumeration
Related Identifiers
Affected Products
Wolfssl