CVE-2026-33813
Panic when decoding large WEBP image on 32-bit platforms in golang.org/x/image
HIGH
7.5
CVSS Score
Published: April 21, 2026 at 07:21 PM UTC
Updated: October 26, 2026 at 09:10 PM UTC
2 products affected across 2 vendorsImageImage
Using golang.org/x/image/webp by golang.org/x/image?
Get instant alerts when new vulnerabilities affect golang.org/x/image/webp - before attackers find them.
Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit
Description
Parsing a WEBP image with an invalid, large size panics on 32-bit platforms.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 0.39.0
Affected range stops below 0.39.0, so it looks safe — our inference, not a vendor statement
v < 0.42.0
Affected range stops below 0.42.0, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (4)
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
StatusMODIFIED
CWE
NVD-CWE-noinfo
Get alerted
Stop reading CVE feeds looking for your own stack
Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.
Free plan, no card