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1 vulnerability found for infrastructure by conda
CVE-2026-53942 (GCVE-0-2026-53942)
Vulnerability from cvelistv5
Published
2026-10-23 14:25
Modified
2026-10-23 14:57
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-94 - Improper Control of Generation of Code ('Code Injection')
Summary
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.
References
| URL | Tags | |
|---|---|---|
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| conda | infrastructure |
Version: < 9c0f23857282ff5cf7a6b3ad6bf0dd6f9974be55 |
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"id": "CVE-2026-53942",
"options": [
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"timestamp": "2026-10-23T14:54:29.744728Z",
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"shortName": "CISA-ADP"
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"title": "CISA ADP Vulnrichment"
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"cna": {
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"vendor": "conda",
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"descriptions": [
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"value": "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."
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"metrics": [
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"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
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"scope": "CHANGED",
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"name": "https://github.com/conda/infrastructure/security/advisories/GHSA-pf87-fcg3-wjfh",
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"source": {
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"discovery": "UNKNOWN"
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"title": "Conda Organization Infrastructure: Pwn Request in update workflow allows PR-controlled template rendering with SYNC_TOKEN"
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