{"schema_version":"1.7.2","id":"OESA-2026-1929","modified":"2026-04-17T13:00:35Z","published":"2026-04-17T13:00:35Z","upstream":["CVE-2026-4878"],"summary":"libcap security update","details":"This is a library for getting and setting POSIX.1e (formerly POSIX 6) draft 15 capabilities.\r\n\r\nSecurity Fix(es):\n\nA 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.(CVE-2026-4878)","affected":[{"package":{"ecosystem":"openEuler:22.03-LTS-SP4","name":"libcap","purl":"pkg:rpm/openEuler/libcap&distro=openEuler-22.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.61-11.oe2203sp4"}]}],"ecosystem_specific":{"aarch64":["libcap-2.61-11.oe2203sp4.aarch64.rpm","libcap-debuginfo-2.61-11.oe2203sp4.aarch64.rpm","libcap-debugsource-2.61-11.oe2203sp4.aarch64.rpm","libcap-devel-2.61-11.oe2203sp4.aarch64.rpm"],"noarch":["libcap-help-2.61-11.oe2203sp4.noarch.rpm"],"src":["libcap-2.61-11.oe2203sp4.src.rpm"],"x86_64":["libcap-2.61-11.oe2203sp4.x86_64.rpm","libcap-debuginfo-2.61-11.oe2203sp4.x86_64.rpm","libcap-debugsource-2.61-11.oe2203sp4.x86_64.rpm","libcap-devel-2.61-11.oe2203sp4.x86_64.rpm"]}},{"package":{"ecosystem":"openEuler:24.03-LTS","name":"libcap","purl":"pkg:rpm/openEuler/libcap&distro=openEuler-24.03-LTS"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.69-7.oe2403sp3"}]}],"ecosystem_specific":{"aarch64":["libcap-2.69-7.oe2403.aarch64.rpm","libcap-debuginfo-2.69-7.oe2403.aarch64.rpm","libcap-debugsource-2.69-7.oe2403.aarch64.rpm","libcap-devel-2.69-7.oe2403.aarch64.rpm","libcap-2.69-7.oe2403sp1.aarch64.rpm","libcap-debuginfo-2.69-7.oe2403sp1.aarch64.rpm","libcap-debugsource-2.69-7.oe2403sp1.aarch64.rpm","libcap-devel-2.69-7.oe2403sp1.aarch64.rpm","libcap-2.69-7.oe2403sp2.aarch64.rpm","libcap-debuginfo-2.69-7.oe2403sp2.aarch64.rpm","libcap-debugsource-2.69-7.oe2403sp2.aarch64.rpm","libcap-devel-2.69-7.oe2403sp2.aarch64.rpm","libcap-2.69-7.oe2403sp3.aarch64.rpm","libcap-debuginfo-2.69-7.oe2403sp3.aarch64.rpm","libcap-debugsource-2.69-7.oe2403sp3.aarch64.rpm","libcap-devel-2.69-7.oe2403sp3.aarch64.rpm"],"noarch":["libcap-help-2.69-7.oe2403.noarch.rpm","libcap-help-2.69-7.oe2403sp1.noarch.rpm","libcap-help-2.69-7.oe2403sp2.noarch.rpm","libcap-help-2.69-7.oe2403sp3.noarch.rpm"],"src":["libcap-2.69-7.oe2403.src.rpm","libcap-2.69-7.oe2403sp1.src.rpm","libcap-2.69-7.oe2403sp2.src.rpm","libcap-2.69-7.oe2403sp3.src.rpm"],"x86_64":["libcap-2.69-7.oe2403.x86_64.rpm","libcap-debuginfo-2.69-7.oe2403.x86_64.rpm","libcap-debugsource-2.69-7.oe2403.x86_64.rpm","libcap-devel-2.69-7.oe2403.x86_64.rpm","libcap-2.69-7.oe2403sp1.x86_64.rpm","libcap-debuginfo-2.69-7.oe2403sp1.x86_64.rpm","libcap-debugsource-2.69-7.oe2403sp1.x86_64.rpm","libcap-devel-2.69-7.oe2403sp1.x86_64.rpm","libcap-2.69-7.oe2403sp2.x86_64.rpm","libcap-debuginfo-2.69-7.oe2403sp2.x86_64.rpm","libcap-debugsource-2.69-7.oe2403sp2.x86_64.rpm","libcap-devel-2.69-7.oe2403sp2.x86_64.rpm","libcap-2.69-7.oe2403sp3.x86_64.rpm","libcap-debuginfo-2.69-7.oe2403sp3.x86_64.rpm","libcap-debugsource-2.69-7.oe2403sp3.x86_64.rpm","libcap-devel-2.69-7.oe2403sp3.x86_64.rpm"]}},{"package":{"ecosystem":"openEuler:24.03-LTS-SP1","name":"libcap","purl":"pkg:rpm/openEuler/libcap&distro=openEuler-24.03-LTS-SP1"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.69-7.oe2403sp1"}]}],"ecosystem_specific":{"aarch64":["libcap-2.69-7.oe2403sp1.aarch64.rpm","libcap-debuginfo-2.69-7.oe2403sp1.aarch64.rpm","libcap-debugsource-2.69-7.oe2403sp1.aarch64.rpm","libcap-devel-2.69-7.oe2403sp1.aarch64.rpm"],"noarch":["libcap-help-2.69-7.oe2403sp1.noarch.rpm"],"src":["libcap-2.69-7.oe2403sp1.src.rpm"],"x86_64":["libcap-2.69-7.oe2403sp1.x86_64.rpm","libcap-debuginfo-2.69-7.oe2403sp1.x86_64.rpm","libcap-debugsource-2.69-7.oe2403sp1.x86_64.rpm","libcap-devel-2.69-7.oe2403sp1.x86_64.rpm"]}},{"package":{"ecosystem":"openEuler:24.03-LTS-SP2","name":"libcap","purl":"pkg:rpm/openEuler/libcap&distro=openEuler-24.03-LTS-SP2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.69-7.oe2403sp2"}]}],"ecosystem_specific":{"aarch64":["libcap-2.69-7.oe2403sp2.aarch64.rpm","libcap-debuginfo-2.69-7.oe2403sp2.aarch64.rpm","libcap-debugsource-2.69-7.oe2403sp2.aarch64.rpm","libcap-devel-2.69-7.oe2403sp2.aarch64.rpm"],"noarch":["libcap-help-2.69-7.oe2403sp2.noarch.rpm"],"src":["libcap-2.69-7.oe2403sp2.src.rpm"],"x86_64":["libcap-2.69-7.oe2403sp2.x86_64.rpm","libcap-debuginfo-2.69-7.oe2403sp2.x86_64.rpm","libcap-debugsource-2.69-7.oe2403sp2.x86_64.rpm","libcap-devel-2.69-7.oe2403sp2.x86_64.rpm"]}},{"package":{"ecosystem":"openEuler:24.03-LTS-SP3","name":"libcap","purl":"pkg:rpm/openEuler/libcap&distro=openEuler-24.03-LTS-SP3"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.69-7.oe2403sp3"}]}],"ecosystem_specific":{"aarch64":["libcap-2.69-7.oe2403sp3.aarch64.rpm","libcap-debuginfo-2.69-7.oe2403sp3.aarch64.rpm","libcap-debugsource-2.69-7.oe2403sp3.aarch64.rpm","libcap-devel-2.69-7.oe2403sp3.aarch64.rpm"],"noarch":["libcap-help-2.69-7.oe2403sp3.noarch.rpm"],"src":["libcap-2.69-7.oe2403sp3.src.rpm"],"x86_64":["libcap-2.69-7.oe2403sp3.x86_64.rpm","libcap-debuginfo-2.69-7.oe2403sp3.x86_64.rpm","libcap-debugsource-2.69-7.oe2403sp3.x86_64.rpm","libcap-devel-2.69-7.oe2403sp3.x86_64.rpm"]}},{"package":{"ecosystem":"openEuler:20.03-LTS-SP4","name":"libcap","purl":"pkg:rpm/openEuler/libcap&distro=openEuler-20.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.32-10.oe2003sp4"}]}],"ecosystem_specific":{"aarch64":["libcap-2.32-10.oe2003sp4.aarch64.rpm","libcap-debuginfo-2.32-10.oe2003sp4.aarch64.rpm","libcap-debugsource-2.32-10.oe2003sp4.aarch64.rpm","libcap-devel-2.32-10.oe2003sp4.aarch64.rpm"],"noarch":["libcap-help-2.32-10.oe2003sp4.noarch.rpm"],"src":["libcap-2.32-10.oe2003sp4.src.rpm"],"x86_64":["libcap-2.32-10.oe2003sp4.x86_64.rpm","libcap-debuginfo-2.32-10.oe2003sp4.x86_64.rpm","libcap-debugsource-2.32-10.oe2003sp4.x86_64.rpm","libcap-devel-2.32-10.oe2003sp4.x86_64.rpm"]}}],"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-1929"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4878"}],"database_specific":{"severity":"Medium"}}