CVE catalog
CVE-2026-93600
DEBIAN-CVE-2026-93600
- Severity
- Low · CVSS 2.2
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.20% · Oct 27, 2026
rustls-webpki (rustls/webpki) versions 0.101.0 through 0.103.11 and 0.104.0-alpha releases before 0.104.0-alpha.6 ignore X.509 name constraints that apply to URI names, causing such constraints to be accepted rather than enforced. Because name constraints are restrictions on otherwise properly issued certificates, the flaw is only reachable after successful signature verification and requires a misissued certificate to exploit; the library also provides no API for asserting URI names, and URI name constraints are otherwise unimplemented. Versions 0.103.12 and 0.104.0-alpha.6 reject URI name constraints unconditionally.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Ubuntu | rust-rustls-webpki | 24.04 | 0.101.4-4 | vulnerable |
| Ubuntu | rust-rustls-webpki | 24.04 | 0.101.7-2.1 | vulnerable |
| Ubuntu | rust-rustls-webpki | 26.04 | 0.102.8-5 | vulnerable |
| Ubuntu | rust-rustls-webpki | 26.04 | 0.103.7-1 | vulnerable |
| Ubuntu | rust-rustls-webpki | 26.04 | 0.103.7-1build1 | vulnerable |
| Ubuntu | rust-rustls-webpki | 26.04 | 0.103.9+ds-1 | vulnerable |
| Ubuntu | rust-rustls-webpki | 26.04 | 0.103.9+ds-2 | vulnerable |
| Debian | rust-rustls-webpki | 13 | 0.102.8-5 | vulnerable |
| Debian | rust-rustls-webpki | 13 | 0.103.10+ds-1 | vulnerable |
| Debian | rust-rustls-webpki | 13 | 0.103.13+ds-1 | vulnerable |
| Debian | rust-rustls-webpki | 13 | 0.103.15+ds-1 | vulnerable |
| Debian | rust-rustls-webpki | 13 | 0.103.4-1 | vulnerable |
| Debian | rust-rustls-webpki | 13 | 0.103.4-2 | vulnerable |
| Debian | rust-rustls-webpki | 13 | 0.103.5-1 | vulnerable |
| Debian | rust-rustls-webpki | 13 | 0.103.6-1 | vulnerable |
| Debian | rust-rustls-webpki | 13 | 0.103.7-1 | vulnerable |
| Debian | rust-rustls-webpki | 13 | 0.103.9+ds-1 | vulnerable |
| Debian | rust-rustls-webpki | 13 | 0.103.9+ds-2 | vulnerable |
| Debian | rust-rustls-webpki | 14 | 0.102.8-5 | vulnerable |
| Debian | rust-rustls-webpki | 14 | 0.103.10+ds-1 | vulnerable |
| Debian | rust-rustls-webpki | 14 | 0.103.4-1 | vulnerable |
| Debian | rust-rustls-webpki | 14 | 0.103.4-2 | vulnerable |
| Debian | rust-rustls-webpki | 14 | 0.103.5-1 | vulnerable |
| Debian | rust-rustls-webpki | 14 | 0.103.6-1 | vulnerable |
| Debian | rust-rustls-webpki | 14 | 0.103.7-1 | vulnerable |
| Debian | rust-rustls-webpki | 14 | 0.103.9+ds-1 | vulnerable |
| Debian | rust-rustls-webpki | 14 | 0.103.9+ds-2 | vulnerable |
| Debian | rust-rustls-webpki | 14 | 0.103.13+ds-1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | rust-rustls-webpki | deb | 14 | 0.103.13+ds-1 | Not reported | DEBIAN-CVE-2026-93600 | Not reported |
OpenFactory catalog packages
[Debian 13 (Trixie)]
- [librust-rustls-webpki-dev]Affected
Source package: [rust-rustls-webpki]
Details (2)
0.102.8-5· all · trixieAffected
pypi · rust-rustls-webpki · debian · 13
0.102.8-5· all · trixieAffected
pypi · rust-rustls-webpki · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_11936-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-93600]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-93600]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93600.json]
[FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]