Buffer overflow in Skia in Google Chrome allows sandbox escape
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 1 fixed, 3 without a fix
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-122 and the CVSS impact.
Summary
Google Chrome versions before 156.0.8078.79 are affected. A heap-based buffer overflow in Skia lets a remote attacker who has compromised the renderer process potentially execute arbitrary code outside the sandbox through a crafted HTML page.
Written with Claude Haiku 5.5 from the sources below · 2026-11-04
Description from the CNA
Buffer overflow in Skia in Google Chrome prior to 156.0.8078.79 allowed a remote attacker who had compromised the renderer process to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
Update Google Chrome to 156.0.8078.79 or later. Red Hat advisory RHSA-2026:95194 fixes it for Red Hat Enterprise Linux AppStream (v. 9). Red Hat Enterprise Linux 6 is affected with no fix planned, and Red Hat Enterprise Linux 7 and 8 are affected with no fix available.
Written with Claude Haiku 5.5 from the sources below · 2026-11-04
- Fix · CNA Chrome (Google) Fixed in 156.0.8078.79
Red Hat 1 advisory
- RHSA-2026:95194 Released 2026-11-04 · Red Hat rating Importantwebkit2gtk3 security update
- Red Hat Enterprise Linux AppStream (v. 9) webkit2gtk3-2.54.2-0.el9_8.2, webkit2gtk3-devel-2.54.2-0.el9_8.2, webkit2gtk3-jsc-2.54.2-0.el9_8.2 +1
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Google Chrome 156.0.8078.79
21 records Highest priority Priority MEDIUM 13 MEDIUM, 8 LOW
Other records, highest priority first
- TI-2026-82803 Use after free in Google Chrome GarbageCollectionPriority MEDIUM 42
- TI-2026-82810 Incorrect reference resolution in CacheStorage in Google ChromePriority MEDIUM 40
- TI-2026-82808 Use after free in Google Chrome editing allows sandbox code executionPriority MEDIUM 40
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix yet |
| Red Hat Enterprise Linux 8 | Affected | No fix yet |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2026:95194 |
Not affected: 4 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-30 Threatist record created from CVE-2026-119261
- 2026-10-30 Alias added: GHSA-88vq-7689-gvgx
- 2026-10-30 CVSS score added · CISA ADP
- 2026-10-30 CISA SSVC decision points changed
- 2026-10-30 Priority changed: LOW → MEDIUM
- 2026-10-30 Affected versions changed · Red Hat
- 2026-10-30 CVSS score added · Red Hat
- 2026-10-31 Affected versions changed · Red Hat
- 2026-10-31 CISA SSVC decision points changed
- 2026-11-03 Title updated · CNA
- 2026-11-03 Weakness changed · CNA
- 2026-11-04 Fix available: RHSA-2026:95194 · Red Hat
- 2026-11-04 Fix available: Red Hat Enterprise Linux AppStream (v. 9) · Red Hat
References
More Google Chrome vulnerabilities
- TI-2025-09686 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.8
- TI-2024-07390 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2024-04898 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2024-04600 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2024-04346 Use after free in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2023-05824 Integer overflow in Google Chrome KEVCVSS 3.1CRITICAL 9.6
Sources
- CVE-2026-119261 · CVE Program
- CVE-2026-119261 · NVD
- FIRST EPSS
- GHSA-88vq-7689-gvgx · GitHub Advisory Database · CC BY 4.0
- CVE-2026-119261 · Red Hat security data · CC BY 4.0
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