Process Kill Attack Vector in killall() in seunshare
Priority LOW 29CWE-862Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 1 fixed, 7 without a fix
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-862.
Summary
A Missing Authorization vulnerability in selinux policycoreutils seunshares allows a user that is running in unconfined context to kill e.g. root-owned processes running also in unconfined context This issue affects policycoreutils through 3.10.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0014 3rd percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 1 fixed, 7 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| SELinuxProject | selinux | up to 3.10 | — | No fix listed | CNA |
- selinux VendorSELinuxProject Affected up to 3.10 Fixed in — No fix listed CNA
Remediation
Red Hat 1 advisory
- RHSA-2026:44343 Released 2026-07-23 · Red Hat rating ModerateRed Hat Hardened Images RPMs bug fix and enhancement update
- Red Hat Hardened Images policycoreutils-3.11-2.1.hum1@aarch64, policycoreutils-3.11-2.1.hum1@src, policycoreutils-3.11-2.1.hum1@x86_64 +16
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 6 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 7 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 5 | Affected | No fix yet: Fix deferred |
| Red Hat Hardened Images | Fixed | RHSA-2026:44343 |
Timeline
- 2026-10-02 Threatist record created from CVE-2026-59677
- 2026-10-03 Alias added: GHSA-gm4w-wf6f-2ghm
- 2026-11-06 Affected versions changed · Red Hat
References
More SELinuxProject vulnerabilities
- TI-2014-02576 seunshare in policycoreutils 2.2.5 is owned by root with 4755 permissions, and executes… CVSS 2.0MEDIUM 6.9
- TI-2026-42553 Local File Deletion Attack Vector in rm_rf() in seunshare CVSS 4.0MEDIUM 5.8
Sources
- CVE-2026-59677 · CVE Program
- CVE-2026-59677 · NVD
- FIRST EPSS
- GHSA-gm4w-wf6f-2ghm · GitHub Advisory Database · CC BY 4.0
- CVE-2026-59677 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences