ALPINE-CVE-2026-89134

Source
https://security.alpinelinux.org/vuln/CVE-2026-89134
Import Source
https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-89134.json
JSON Data
https://api.osv.dev/v1/vulns/ALPINE-CVE-2026-89134
Upstream
Published
2026-09-27T10:16:59Z
Modified
2026-11-03T06:33:05Z
Severity
  • 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H CVSS Calculator
Summary
[none]
Details

A certificate with no dNSName SAN but another SAN type present (e.g. registeredID or iPAddress) bypassed the Subject CN dNSName name-constraint check. The CN-as-DNS fallback was gated on cert->subjectCN != NULL && cert->altNames == NULL && !cert->isCA instead of "no dNSName SAN", so an out-of-scope CN was accepted. This incomplete fix from CVE-2026-6731, leading to the name-constraint check issue, was introduced in wolfSSL version 5.9.2.

References

Affected packages

Alpine:v3.24 / wolfssl

Package

Name
wolfssl
Purl
pkg:apk/alpine/wolfssl?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
5.9.4-r0

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-89134.json"