ALPINE-CVE-2026-4878
- Source
- https://security.alpinelinux.org/vuln/CVE-2026-4878
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-4878.json
- JSON Data
- https://api.osv.dev/v1/vulns/ALPINE-CVE-2026-4878
- Upstream
- Published
- 2026-04-09T16:16:31.987Z
- Modified
- 2026-06-09T21:31:40.039628840Z
- Severity
-
- 7.0 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
A flaw was found in libcap. A local unprivileged user can exploit a Time-of-check-to-time-of-use (TOCTOU) race condition in the
cap_set_file()function. This allows an attacker with write access to a parent directory to redirect file capability updates to an attacker-controlled file. By doing so, capabilities can be injected into or stripped from unintended executables, leading to privilege escalation. - References
Affected packages
Alpine:v3.20 / libcap
Package
- Name
- libcap
- Purl
- pkg:apk/alpine/libcap?arch=source
Alpine:v3.21 / libcap
Package
- Name
- libcap
- Purl
- pkg:apk/alpine/libcap?arch=source
Alpine:v3.22 / libcap
Package
- Name
- libcap
- Purl
- pkg:apk/alpine/libcap?arch=source
Alpine:v3.23 / libcap
Package
- Name
- libcap
- Purl
- pkg:apk/alpine/libcap?arch=source