ALPINE-CVE-2026-62427
- Source
- https://security.alpinelinux.org/vuln/CVE-2026-62427
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-62427.json
- JSON Data
- https://api.osv.dev/v1/vulns/ALPINE-CVE-2026-62427
- Upstream
- Published
- 2026-07-28T13:19:01.613Z
- Modified
- 2026-08-12T14:30:04.368530956Z
- Severity
-
- 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.]
To manage the system, sysctl and platform operations are used by the control domain or a possible Xenstore domain. Some of these operations may not be executed in parallel, so a system-wide lock each is used. The way those locks are acquired is, however, not providing any fairness. Furthermore, with XSM/Flask in use, the lock acquire will, for some operations, occur ahead of any permission checking.
The sysctl issue is CVE-2026-62426.
The platform-op issue is CVE-2026-62427.
- References
Affected packages
Alpine:v3.21 / xen
Package
- Name
- xen
- Purl
- pkg:apk/alpine/xen?arch=source
Alpine:v3.22 / xen
Package
- Name
- xen
- Purl
- pkg:apk/alpine/xen?arch=source
Alpine:v3.23 / xen
Package
- Name
- xen
- Purl
- pkg:apk/alpine/xen?arch=source