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.
INFO
Published Date :
2026-04-10T03:00:42.976Z
Last Modified :
2026-04-10T13:43:34.035Z
Source :
wolfSSL
AFFECTED PRODUCTS
The following products are affected by CVE-2026-5466 vulnerability.
| Vendors | Products |
|---|---|
| Wolfssl |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2026-5466.
| URL | Resource |
|---|---|
| https://github.com/wolfssl/wolfssl/pull/10102 |
|
CVSS Vulnerability Scoring System
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability