CVE-2026-87866

Published: Ott 20, 2026 Last Modified: Ott 20, 2026
ExploitDB:
Other exploit source:
Google Dorks:

Description

AI Translation Available

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.

https://curl.se/docs/CVE-2026-87866.html
https://curl.se/docs/CVE-2026-87866.html
https://curl.se/docs/CVE-2026-87866.json
https://curl.se/docs/CVE-2026-87866.json
https://hackerone.com/reports/3989514
https://hackerone.com/reports/3989514