CVE-2026-33813
Panic when decoding large WEBP image on 32-bit platforms in golang.org/x/image
Description
Parsing a WEBP image with an invalid, large size panics on 32-bit platforms.
INFO
Published Date :
April 21, 2026, 8:16 p.m.
Last Modified :
May 13, 2026, 3:51 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Update the WEBP image parsing library.
- Validate image dimensions before processing.
- Implement robust error handling for image parsing.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-33813.
| URL | Resource |
|---|---|
| https://go.dev/cl/759860 | Patch |
| https://go.dev/issue/78407 | Issue Tracking |
| https://pkg.go.dev/vuln/GO-2026-4961 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-33813 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-33813
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-33813 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-33813 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
May. 13, 2026
Action Type Old Value New Value Added CWE NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:a:golang:image:*:*:*:*:*:go:*:* versions up to (excluding) 0.39.0 Added Reference Type Go Project: https://go.dev/cl/759860 Types: Patch Added Reference Type Go Project: https://go.dev/issue/78407 Types: Issue Tracking Added Reference Type Go Project: https://pkg.go.dev/vuln/GO-2026-4961 Types: Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Apr. 22, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H -
New CVE Received by [email protected]
Apr. 21, 2026
Action Type Old Value New Value Added Description Parsing a WEBP image with an invalid, large size panics on 32-bit platforms. Added Reference https://go.dev/cl/759860 Added Reference https://go.dev/issue/78407 Added Reference https://pkg.go.dev/vuln/GO-2026-4961