A locking protection bypass flaw was found in some versions of gnome-shell as shipped…
Priority LOW 27CWE-667Published · Updated
Key facts
- Attack vector
- Physical
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
A locking protection bypass flaw was found in some versions of gnome-shell as shipped within CentOS Stream 8, when the "Application menu" or "Window list" GNOME extensions are enabled. This flaw allows a physical attacker who has access to a locked system to kill existing applications and start new ones as the locked user, even if the session is still locked.
Why it matters now
EPSS 0.00204 10th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | gnome-shell | gnome-shell 3.32.2-40.el8 | — | No fix listed | CNA |
- gnome-shell Vendor— Affected gnome-shell 3.32.2-40.el8 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 3 products
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2021-20315
- 2026-10-03 Alias added: GHSA-hpr5-wwh9-pjhf
References
Sources
- CVE-2021-20315 · CVE Program
- CVE-2021-20315 · NVD
- FIRST EPSS
- GHSA-hpr5-wwh9-pjhf · GitHub Advisory Database · CC BY 4.0
- CVE-2021-20315 · Red Hat security data · CC BY 4.0
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