Vulnerability GHSA-965h-392x-2mh5
Low Risk
LOW RISK
CVSS Score: 2.2
Score Range: < 4.0
Low severity vulnerabilities (CVSS < 4.0). Hygiene issues that can accumulate but pose lower immediate risk.
6 months ago
April 16, 2026 at 09:16 PM UTC
webpki: Name constraints for URI names were incorrectly accepted
0.101.0 - 0.103.11 and 0.104.0-alpha.1 - 0.104.0-alpha.5
0.101.0 - 0.103.11 and 0.104.0-alpha.1 - 0.104.0-alpha.5
Summary
webpki: Name constraints for URI names were incorrectly accepted
Details
Name constraints for URI names were ignored and therefore accepted.
Note this library does not provide an API for asserting URI names, and URI name constraints are otherwise not implemented. URI name constraints are now rejected unconditionally.
Since name constraints are restrictions on otherwise properly-issued certificates, this bug is reachable only after signature verification and requires misissuance to exploit.
Related Vulnerabilities
Other vulnerabilities affecting the same packages
Unknown
16 hours ago
Certificate verification may accept distrusted intermediates
0.0.0-invalid - 0.103.15 and 0.104.0-alpha.1 - 0.104.0-alpha.7 RUSTSEC-2026-0382
0.0.0-invalid - 0.103.15 and 0.104.0-alpha.1 - 0.104.0-alpha.7 RUSTSEC-2026-0382
High Risk
5 months ago
rustls-webpki: Denial of service via panic on malformed CRL BIT STRING
0.0.0-invalid - 0.103.12 and 0.104.0-alpha.1 - 0.104.0-alpha.6 GHSA-82j2-j2ch-gfr8
0.0.0-invalid - 0.103.12 and 0.104.0-alpha.1 - 0.104.0-alpha.6 GHSA-82j2-j2ch-gfr8
Unknown
6 months ago
Reachable panic in certificate revocation list parsing
0.0.0-invalid - 0.103.12 and 0.104.0-alpha.1 - 0.104.0-alpha.6 RUSTSEC-2026-0104
0.0.0-invalid - 0.103.12 and 0.104.0-alpha.1 - 0.104.0-alpha.6 RUSTSEC-2026-0104
Low Risk
6 months ago
webpki: Name constraints were accepted for certificates asserting a wildcard name
0.101.0 - 0.103.11 and 0.104.0-alpha.1 - 0.104.0-alpha.5 GHSA-xgp8-3hg3-c2mh
0.101.0 - 0.103.11 and 0.104.0-alpha.1 - 0.104.0-alpha.5 GHSA-xgp8-3hg3-c2mh
Unknown
6 months ago
Name constraints for URI names were incorrectly accepted
0.0.0-invalid - 0.103.11 and 0.104.0-alpha.1 - 0.104.0-alpha.5 RUSTSEC-2026-0098
0.0.0-invalid - 0.103.11 and 0.104.0-alpha.1 - 0.104.0-alpha.5 RUSTSEC-2026-0098
Impacted packages
Timeline
Published
6 months ago
April 16, 2026 at 09:16 PM UTC
Fixed (0.104.0-alpha.6)
6 months ago
April 13, 2026 at 02:41 PM UTC
Fixed (0.103.12)
6 months ago
April 14, 2026 at 09:38 AM UTC
Last Modified
1 month ago
September 19, 2026 at 03:55 AM UTC