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Vulnerability Details :

CVE-2026-33813

Summary
Assigner-Go
Assigner Org ID-1bb62c36-49e3-4200-9d77-64a1400537cc
Published At-21 Apr, 2026 | 19:21
Updated At-22 Apr, 2026 | 15:34
Rejected At-
Credits

Panic when decoding large WEBP image on 32-bit platforms in golang.org/x/image

Parsing a WEBP image with an invalid, large size panics on 32-bit platforms.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:Go
Assigner Org ID:1bb62c36-49e3-4200-9d77-64a1400537cc
Published At:21 Apr, 2026 | 19:21
Updated At:22 Apr, 2026 | 15:34
Rejected At:
▼CVE Numbering Authority (CNA)
Panic when decoding large WEBP image on 32-bit platforms in golang.org/x/image

Parsing a WEBP image with an invalid, large size panics on 32-bit platforms.

Affected Products
Vendor
golang.org/x/image
Product
golang.org/x/image/webp
Collection URL
https://pkg.go.dev
Package Name
golang.org/x/image/webp
Program Routines
  • decode
  • Decode
  • DecodeConfig
Default Status
unaffected
Versions
Affected
  • From 0 before 0.39.0 (semver)
Problem Types
TypeCWE IDDescription
N/AN/ACWE-190: Integer Overflow or Wraparound
Type: N/A
CWE ID: N/A
Description: CWE-190: Integer Overflow or Wraparound
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Tristan Madani
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://go.dev/cl/759860
N/A
https://go.dev/issue/78407
N/A
https://pkg.go.dev/vuln/GO-2026-4961
N/A
Hyperlink: https://go.dev/cl/759860
Resource: N/A
Hyperlink: https://go.dev/issue/78407
Resource: N/A
Hyperlink: https://pkg.go.dev/vuln/GO-2026-4961
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
3.17.5HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Version: 3.1
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security@golang.org
Published At:21 Apr, 2026 | 20:16
Updated At:22 Apr, 2026 | 21:24

Parsing a WEBP image with an invalid, large size panics on 32-bit platforms.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.17.5HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Type: Secondary
Version: 3.1
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CPE Matches
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://go.dev/cl/759860security@golang.org
N/A
https://go.dev/issue/78407security@golang.org
N/A
https://pkg.go.dev/vuln/GO-2026-4961security@golang.org
N/A
Hyperlink: https://go.dev/cl/759860
Source: security@golang.org
Resource: N/A
Hyperlink: https://go.dev/issue/78407
Source: security@golang.org
Resource: N/A
Hyperlink: https://pkg.go.dev/vuln/GO-2026-4961
Source: security@golang.org
Resource: N/A

Change History

0
Information is not available yet

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Matching Score-8
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EPSS-0.16% / 36.61%
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Action-Not Available
Vendor-golang.org/x/imageGo
Product-golang.org/x/image/tiffimage
Details not found