https://seclists.org/oss-sec/2026/q2/29: libcap-2.77 (since libcap-2.04) has TOCTOU privilege escalation issue
Published Apr 7, 2026
·Updated
Affected Software
1 affected component
libcap libcap>=2.04<=2.77
Frequently Asked Questions
1
What is the severity of CVE-2026-4878?
The severity of CVE-2026-4878 is classified as a medium-risk privilege escalation vulnerability.
2
How do I fix CVE-2026-4878?
To fix CVE-2026-4878, you should upgrade to libcap version 2.78 or later.
3
What type of vulnerability is CVE-2026-4878?
CVE-2026-4878 is a TOCTOU (Time of Check to Time of Use) privilege escalation issue.
4
Which versions of libcap are affected by CVE-2026-4878?
CVE-2026-4878 affects libcap versions from 2.04 up to and including 2.77.
5
When was CVE-2026-4878 published?
CVE-2026-4878 was published on April 7, 2026.