CVE-2026-83493
Distributed-workloads: github actions pinned by mutable tag/branch, including third-party snyk/actions/setup@master
Description
A flaw was found in distributed-workloads. A remote attacker could exploit a vulnerability in the pull_request_target workflow by submitting a specially crafted pull request. This workflow processes untrusted code from the pull request author while operating with the base repository's sensitive secrets, such as the SNYK_TOKEN, and its default write token. Consequently, an attacker could exfiltrate these secrets, leading to unauthorized access to the Snyk integration and potential control over the repository.
INFO
Published Date :
Nov. 6, 2026, 7:17 a.m.
Last Modified :
Nov. 6, 2026, 7:17 a.m.
Remotely Exploit :
No
Source :
[email protected]
Solution
- Restrict workflow permissions to minimum necessary.
- Avoid using default tokens in PR workflows.
- Scan pull request code for malicious content.
- Review code before merging pull requests.
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-2026-83493.
| URL | Resource |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-83493 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2526349 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-83493 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-2026-83493
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-2026-83493 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-83493 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.
-
New CVE Received by [email protected]
Nov. 06, 2026
Action Type Old Value New Value Added Description A flaw was found in distributed-workloads. A remote attacker could exploit a vulnerability in the pull_request_target workflow by submitting a specially crafted pull request. This workflow processes untrusted code from the pull request author while operating with the base repository's sensitive secrets, such as the SNYK_TOKEN, and its default write token. Consequently, an attacker could exfiltrate these secrets, leading to unauthorized access to the Snyk integration and potential control over the repository. Added CWE CWE-829 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/83xxx/CVE-2026-83493.json">CVE-2026-83493</a> Added Reference https://access.redhat.com/security/cve/CVE-2026-83493 Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2526349