ALPINE-CVE-2026-42013

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Source
https://security.alpinelinux.org/vuln/CVE-2026-42013
Import Source
https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-42013.json
JSON Data
https://api.osv.dev/v1/vulns/ALPINE-CVE-2026-42013
Upstream
  • CVE-2026-42013
Published
2026-05-26T22:16:42.050Z
Modified
2026-06-09T21:31:39.877950793Z
Severity
  • 8.2 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N CVSS Calculator
Summary
[none]
Details

A flaw was found in gnutls. When validating certificates, an oversized Subject Alternative Name (SAN) could cause the validation process to incorrectly fall back to checking the Common Name (CN) field. This could allow a remote attacker to bypass proper certificate validation, potentially leading to spoofing or man-in-the-middle attacks.

References

Affected packages

Alpine:v3.20 / gnutls

Package

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

Affected ranges

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

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-42013.json"

Alpine:v3.21 / gnutls

Package

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

Affected ranges

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

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-42013.json"

Alpine:v3.22 / gnutls

Package

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

Affected ranges

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

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-42013.json"

Alpine:v3.23 / gnutls

Package

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

Affected ranges

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

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-42013.json"

Alpine:v3.24 / gnutls

Package

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

Affected ranges

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

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-42013.json"