CVE-2026-5263
URI nameConstraints not enforced in ConfirmNameConstraints()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
6th
URI nameConstraints from constrained intermediate CAs are parsed but not enforced during certificate chain verification in wolfcrypt/src/asn.c. A compromised or malicious sub-CA could issue leaf certificates with URI SAN entries that violate the nameConstraints of the issuing CA, and wolfSSL would accept them as valid.
| CWE | CWE-295 |
| Vendor | wolfssl |
| Product | wolfssl |
| Published | Apr 9, 2026 |
| Last Updated | Apr 10, 2026 |
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Affected Versions
wolfSSL / wolfSSL
0 < 5.9.1
Credits
Oleh Konko @1seal