CVE-2026-53942 Conda Organization Infrastructure is a centralized location for infrastructure codes.
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-53942?
CVE-2026-53942 is a critical vulnerability in conda infrastructure, published on 23 Oct 2026.
Official description
Conda Organization Infrastructure is a centralized location for infrastructure codes. Prior to commit 9c0f238, a GitHub Actions Pwn Request vulnerability appears to remain present in conda/conda. The affected workflow is .github/workflows/update.yml. It is triggered by issue_comment events containing @conda-bot render or @conda-bot recreate. For the render path, the workflow obtains the pull request head repository and branch from the PR API, checks out that PR-controlled repository/ref using secrets.SYNC_TOKEN, and then runs conda/actions/template-files@7f6830b1428a9bd47f0b068892c77eae95207037. The external template-files action reads its default configuration and templates from the checked-out working directory. In the confirmed finding, that action uses an unsandboxed Jinja2 environment to render attacker-controlled template content. This creates a Pwn Request chain in which an untrusted PR/comment path can reach template rendering in a privileged token context. This issue has been patched via commit 9c0f238.
Weakness: CWE-94
Which versions are affected by CVE-2026-53942?
How do I fix CVE-2026-53942?
No fix has been published for CVE-2026-53942 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-53942 being exploited?
There is no known exploitation of CVE-2026-53942 in the wild and no public exploit code.
Sources
Also known as GHSA-pf87-fcg3-wjfh.