PT-2026-114422 · Git · Curl

CVE-2026-87866

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Published

2026-10-14

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Updated

2026-10-14

None

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When built with wolfSSL, curl can successfully validate a pinned public key hash against a key the TLS peer does not possess. During the TLS handshake, wolfSSL validates the connection, but curl's subsequent re-parsing of the same certificate - tricked by a manipulated validity length field - extracts and matches a different embedded key, incorrectly authorizing the pinned public key.

Improper Certificate Validation

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Weakness Enumeration

Related Identifiers

CVE-2026-87866

Affected Products

Curl