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
Configurations
No configuration.
History
25 Apr 2026, 02:16
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09 Apr 2026, 16:16
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Information
Published : 2026-04-09 16:16
Updated : 2026-04-25 02:16
NVD link : CVE-2026-4878
Mitre link : CVE-2026-4878
CVE.ORG link : CVE-2026-4878
JSON object : View
Products Affected
No product.
CWE
CWE-367
Time-of-check Time-of-use (TOCTOU) Race Condition