Missing authorization in Chrome Paint exposes cross-origin data
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-862.
Summary
Google Chrome before 156.0.8078.47 has a missing authorization flaw in Paint (CWE-862). A remote attacker can obtain cross-origin data by luring a user to a crafted HTML page.
Written with Claude Haiku 5.5 from the sources below · 2026-11-03
Description from the CNA
Missing authorization in Paint in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to obtain cross-origin data 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 version 156.0.8078.47 or later.
Written with Claude Haiku 5.5 from the sources below · 2026-11-03
- Fix · CNA Chrome (Google) Fixed in 156.0.8078.47
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Google Chrome 156.0.8078.47
353 records Highest priority Priority HIGH 10 HIGH, 292 MEDIUM, 51 LOW
Other records, highest priority first
- TI-2026-78505 Observable discrepancy in Google Chrome Controls leaks sensitive dataPriority HIGH 73
- TI-2026-78321 Input validation flaw in Google Chrome WebShare allows sandbox escapePriority HIGH 73
- TI-2026-78320 Chrome PerformanceAPIs flaw lets web pages read cross-origin dataPriority HIGH 73
Vendor assessments
Timeline
- 2026-10-21 Threatist record created from CVE-2026-113179
- 2026-10-21 Alias added: GHSA-q337-p577-jxf7
- 2026-10-21 Affected versions changed · Red Hat
- 2026-10-21 CVSS score added · Red Hat
- 2026-10-22 Priority changed: LOW → MEDIUM
- 2026-11-03 Title updated · CNA
- 2026-11-03 Weakness changed · CNA
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-2026-113179 · CVE Program
- CVE-2026-113179 · NVD
- FIRST EPSS
- GHSA-q337-p577-jxf7 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-113179 · 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