Libcap Project Libcap vulnerabilities
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Published CVEs affecting Libcap Project Libcap: 1 record(s), with affected versions and fixes.cpe:2.3:a:libcap_project:libcap
CVE-2026-4878
High · 7.0
CWE-367 Apr 9, 2026
Libcap: libcap: privilege escalation via toctou race condition in cap_set_file()
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.