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Add webpki URI name constraints bug

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Joe Birr-Pixton
2026-04-14 16:30:50 +01:00
committed by Dirkjan Ochtman
parent 356aad6a39
commit b928e1de99
1 changed files with 21 additions and 0 deletions
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crates/rustls-webpki/RUSTSEC-0000-0000.md Normal file
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```toml
[advisory]
id = "RUSTSEC-0000-0000"
package = "rustls-webpki"
date = "2026-04-14"
keywords = ["name constraints", "x509"]
aliases = ["GHSA-965h-392x-2mh5"]
[versions]
patched = [">= 0.103.12, < 0.104.0-alpha.1", ">= 0.104.0-alpha.6"]
```
# Name constraints for URI names were incorrectly accepted
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.
This vulnerability is identified as [GHSA-965h-392x-2mh5](https://github.com/rustls/webpki/security/advisories/GHSA-965h-392x-2mh5). Thank you to @1seal for the report.