CVE-2026-46601

Panic on VP8 alpha channel size mismatch in x/image/webp in golang.org/x/image

Published Jun 25, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
The webp decoder can panic when processing a VP8 chunk with dimensions that do not match the canvas size.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Weaknesses CWE-20
Type Values Removed Values Added
Weaknesses CWE-20
Type Values Removed Values Added
Weaknesses CWE-20
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Golang
Golang image
Vendors & Products Golang
Golang image
Type Values Removed Values Added
Weaknesses CWE-20
Type Values Removed Values Added
Description The webp decoder can panic when processing a VP8 chunk with dimensions that do not match the canvas size.
Title Panic on VP8 alpha channel size mismatch in x/image/webp in golang.org/x/image
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Go
Published
Updated
Jun 26, 2026, 4:09 PM
Reserved
May 15, 2026, 5:35 PM
Status
Deferred
Published
Jun 25, 2026, 8:17 PM
Modified
Oct 25, 2026, 10:10 PM
Severity
Moderate
Public date
Jun 25, 2026, 7:47 PM