CVE-2026-5466

Name
CVE-2026-5466
Description
wolfSSL's ECCSI signature verifier `wc_VerifyEccsiHash` decodes the `r` and `s` scalars from the signature blob via `mp_read_unsigned_bin` with no check that they lie in `[1, q-1]`. A crafted forged signature could verify against any message for any identity, using only publicly-known constants.
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
facts@wolfssl.com https://github.com/wolfssl/wolfssl/pull/10102

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:* wolfssl >= None < 5.9.1

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
wolfssl edge-community 5.9.1-r0 Pavlo Dembytskyi <me@devs.boo> fixed
wolfssl edge-community 5.9.0-r0 Pavlo Dembytskyi <me@devs.boo> possibly vulnerable
wolfssl edge-community 5.8.4-r2 Pavlo Dembytskyi <me@devs.boo> possibly vulnerable
wolfssl edge-community 5.8.4-r1 None possibly vulnerable
wolfssl edge-community 5.8.2-r1 None possibly vulnerable
wolfssl edge-community 5.8.2-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
wolfssl edge-community 5.7.6-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
wolfssl edge-community 5.7.4-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
wolfssl edge-community 5.7.2-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
wolfssl edge-community 5.7.0-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
wolfssl edge-community 5.6.6-r0 None possibly vulnerable
wolfssl edge-community 5.6.2-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
wolfssl edge-community 5.5.3-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
wolfssl edge-community 5.5.1-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
wolfssl edge-community 5.5.0-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
wolfssl edge-community 5.4.0-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
wolfssl 3.23-community 5.9.1-r0 Jakub Jirutka <jakub@jirutka.cz> fixed
wolfssl 3.23-community 5.8.2-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable