A flaw was found in CIRCL's implementation of the FourQ elliptic curve. This vulnerability allows an attacker to compromise session security via low-order point injection and incorrect point validation during Diffie-Hellman key exchange.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 1
- First seenCVSS 3.7NVD modified 2026-10-27 06:17
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 7
- https://access.redhat.com/security/cve/CVE-2025-8556
- https://bugzilla.redhat.com/show_bug.cgi?id=2371624
- https://github.com/cloudflare/circl
- https://github.com/cloudflare/circl/security/advisories/GHSA-2x5j-vhc8-9cwm
- https://github.com/cloudflare/circl/tree/v1.6.1
- https://news.ycombinator.com/item?id=45669593
- https://www.botanica.software/blog/cryptographic-issues-in-cloudflares-circl-fourq-implementation