ALPINE-CVE-2026-56131

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Source
https://security.alpinelinux.org/vuln/CVE-2026-56131
Import Source
https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-56131.json
JSON Data
https://api.osv.dev/v1/vulns/ALPINE-CVE-2026-56131
Upstream
  • CVE-2026-56131
Published
2026-06-19T06:17:10.107Z
Modified
2026-06-29T15:30:04.915303431Z
Severity
  • 4.9 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L CVSS Calculator
Summary
[none]
Details

libexpat before 2.8.2 lacks handler call depth tracking for calls to XML_ResumeParser from within handlers in cases of a policy violation. Thus, a use-after-free can occur (similar to the CVE-2026-50219 situation).

References

Affected packages

Alpine:v3.21 / expat

Package

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

Affected ranges

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

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-56131.json"

Alpine:v3.22 / expat

Package

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

Affected ranges

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

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-56131.json"

Alpine:v3.23 / expat

Package

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

Affected ranges

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

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-56131.json"

Alpine:v3.24 / expat

Package

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

Affected ranges

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

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-56131.json"