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.
CVSS
No CVSS.
References
| Link | Resource |
|---|---|
| https://github.com/wolfssl/wolfssl/pull/10102 |
Configurations
No configuration.
History
10 Apr 2026, 04:17
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-04-10 04:17
Updated : 2026-04-10 04:17
NVD link : CVE-2026-5466
Mitre link : CVE-2026-5466
CVE.ORG link : CVE-2026-5466
JSON object : View
Products Affected
No product.
CWE
CWE-347
Improper Verification of Cryptographic Signature