CVE-2026-89135

Failed X509_verify_cert leaves unverified CA in shared CertManager

Published: Sep 27, 2026Updated: Sep 27, 2026 Sources: CVE List NVDCWE-295

N/ACVSS

NVD MITRE

Description

A failed X509_verify_cert call permanently plants an unverified attacker CA in the shared CertManager, bypassing certificate validation in every type-blind sibling consumer (native TLS, OCSP, CRL, direct CM verify). This affects version 5.8.4 through 5.9.2 of wolfSSL with the macros (OPENSSL_EXTRA && !NO_CERTS && !WOLFCRYPT_ONLY) defined or built with --enable-opensslextra and the application is specifically making calls to the X509_verify_cert function.

No summary for this CVE yet.

Weaknesses

CWE-295

Affected Products

wolfSSL

oss-projectaka wolfssh, wolfmqtt

wolfSSLLibraryLibrary

OSS Libraries / generic-library

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

Attack Graph

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MITRE ATT&CK

1 technique

Collection

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References

https://github.com/wolfSSL/wolfssl/pull/11009

github.com

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