Privilege escalation via incorrect CanvasWebGL boundary checks
Published Sep 15, 2026 · Updated Sep 15, 2026
Incorrect boundary conditions in Mozilla Firefox before 156 allow attackers to escalate privileges through the CanvasWebGL component. The component performs a bounds-sensitive graphics operation without enforcing the correct boundary conditions, but the affected operation and input are undisclosed. Mozilla has not published the privileges gained, delivery vector, or user-interaction requirements, so the consequence cannot be bounded beyond privilege escalation.
Summary
What happened
Incorrect boundary conditions in Mozilla Firefox before 156 allow attackers to escalate privileges through the CanvasWebGL component. The component performs a bounds-sensitive graphics operation without enforcing the correct boundary conditions, but the affected operation and input are undisclosed. Mozilla has not published the privileges gained, delivery vector, or user-interaction requirements, so the consequence cannot be bounded beyond privilege escalation.
The record
- CVE
- CVE-2026-92013
- Published
- Sep 15, 2026
- Updated
- Sep 15, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- Unavailable
- Attack vector
- Unavailable
- Privileges
- Unavailable
Timeline
How it unfolded
- Sep 15, 2026CVE publishedPublication date reported by the CVE source.
- Sep 15, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
No sourced classifications are available.
Public exploit references
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Technologies
Your stack
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Your stack
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