DEBIAN-CVE-2026-93601

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Source

https://security-tracker.debian.org/tracker/CVE-2026-93601

Import Source

https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-93601.json

JSON Data

https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-93601

Upstream

CVE-2026-93601

Published

2026-09-18T14:19:11Z

Modified

2026-09-19T05:00:27Z

Severity

2.1 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator

Summary

[none]

Details

rustls-webpki (the Rust webpki fork used by rustls) versions >= 0.101.0 and prior to 0.103.12 and 0.104.0-alpha.6 incorrectly accepted permitted-subtree DNS name constraints for certificates asserting a wildcard name. For example, a name constraint of accept.example.com was treated as satisfied by a certificate for *.example.com, which could feasibly assert reject.example.com — a name outside the permitted subtree. Because name constraints are restrictions applied to otherwise properly issued certificates, the issue is only reachable after signature verification succeeds and requires a misissued wildcard certificate to exploit.

References

https://security-tracker.debian.org/tracker/CVE-2026-93601

Affected packages

Debian:13 / rust-rustls-webpki

Package

Name: rust-rustls-webpki
Purl: pkg:deb/debian/rust-rustls-webpki?arch=source&distro=trixie

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

0.*

0.102.8-5

0.103.4-1

0.103.4-2

0.103.5-1

0.103.6-1

0.103.7-1

0.103.9+ds-1

0.103.9+ds-2

0.103.10+ds-1

0.103.13+ds-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-93601.json"

Debian:14 / rust-rustls-webpki