RUSTSEC-2026-0098None▾ SunlitName constraints for URI names were incorrectly accepted
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via OSV
Last analysed / modified upstream
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. Thank you to @1seal for the report.
rustls-webpki >= 0.104.0-alpha.1, < 0.104.0-alpha.6Upgrade to a patched release:
rustls-webpki 0.104.0-alpha.6Connected by shared product, vendor, weakness, or advisory.
RUSTSEC-2026-0104NoneReachable panic in certificate revocation list parsing
RUSTSEC-2026-0099NoneName constraints were accepted for certificates asserting a wildcard name
RUSTSEC-2026-0049NoneCRLs not considered authoritative by Distribution Point due to faulty matching logic