webpki: Name constraints for URI names were incorrectly accepted
Priority LOW 38CWE-295Published · Updated
Key facts
- Attack vector
- —
- Privileges required
- —
- User interaction
- —
- Attack complexity
- —
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- —
- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub. Impact type from CWE-295.
Summary
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.
Why it matters now
Fix Fixed rustls-webpki (crates.io): 0.103.12, 0.104.0-alpha.6
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | rustls-webpki (crates.io) | 0.101.0 to before 0.103.12 | 0.103.12 | Patch available | GHSA-965h-392x-2mh5 |
| — | rustls-webpki (crates.io) | 0.104.0-alpha.1 to before 0.104.0-alpha.6 | 0.104.0-alpha.6 | Patch available | GHSA-965h-392x-2mh5 |
- rustls-webpki (crates.io) Vendor— Affected 0.101.0 to before 0.103.12 Fixed in 0.103.12 Patch available GHSA-965h-392x-2mh5
- rustls-webpki (crates.io) Vendor— Affected 0.104.0-alpha.1 to before 0.104.0-alpha.6 Fixed in 0.104.0-alpha.6 Patch available GHSA-965h-392x-2mh5
Remediation
- Fix · GHSA-965h-392x-2mh5 rustls-webpki (crates.io) Fixed in 0.103.12 Advisory →
- Fix · GHSA-965h-392x-2mh5 rustls-webpki (crates.io) Fixed in 0.104.0-alpha.6 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-965h-392x-2mh5
References
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences