CVE-2026-46601

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

HIGH

7.5

CVSS Score

Published: June 25, 2026 at 07:47 PM UTC

Updated: October 25, 2026 at 10:10 PM UTC

1 product affected across 1 vendorImage

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Severity

HIGH7.5

Exploit prediction

EPSS 0.6%

SSVC

No known exploit

Description

The webp decoder can panic when processing a VP8 chunk with dimensions that do not match the canvas size.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Image · Golang Org X Imagego

90%

v < 0.43.0

Affected range stops below 0.43.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

Source: cverecord

https://go.dev/cl/787681

Source: cverecord

https://go.dev/issue/79869

Source: cverecord

https://pkg.go.dev/vuln/GO-2026-5061

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHCISA-ADP

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: NONE
Availability: HIGH

Vector?

Quick Info

StatusDEFERRED

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