CVE-2026-54168Pipelines-as-Code: Unscoped GitHub App installation token allows unauthorized access to private repositories via remote task resolution
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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Pipelines-as-Code is a CI/CD system that lets users define Tekton pipelines in source code repositories. Prior to 0.37.8, 0.39.6, 0.42.1, and 0.48.0, a GitHub App installation token created during webhook processing is not scoped to the repository that triggered the event when the App is installed across multiple repositories. A user with push access to one repository can submit a PipelineRun containing a pipelinesascode.tekton.dev/task remote task annotation that targets a private repository in the same installation. When ScopeTokenToListOfRepos returns no explicit scope, the missing triggering repository ID leaves the token able to access the entire installation. Pipelines-as-Code resolves and inlines the remote private task with that token, disclosing the repository's Tekton definitions. The demonstrated impact is read-only and does not provide write access. This issue is fixed in versions 0.37.8, 0.39.6, 0.42.1, and 0.48.0.
- CVSS
- 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Weakness (CWE)
- CWE-269, CWE-862
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Awaiting Analysis
- Record last updated
- Sep 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
tektoncd pipelines-as-code tektoncd:pipelines_as_code (from the name) | before 0.37.8; from 0.38.0, < 0.39.6; from 0.40.0, < 0.42.1; from 0.43.0, < 0.48.0 | CNA record |
References
- https://github.com/tektoncd/pipelines-as-code/security/advisories/GHSA-6f2p-296r-cc28x-refsource-confirm
- https://github.com/tektoncd/pipelines-as-code/commit/001782829e82b83ecb3da903f5a024ca0826b64cx-refsource-misc
- https://github.com/tektoncd/pipelines-as-code/commit/40813976a77920feaf52671320d6d3c5ff08eb7ex-refsource-misc
- https://github.com/tektoncd/pipelines-as-code/commit/ac6fded6dfb69ade7197d4eeed6e90ddbe1b79bcx-refsource-misc
- https://github.com/tektoncd/pipelines-as-code/commit/e0c4a11ea3800ab9d26cf3a8ae92b74cf18527c3x-refsource-misc
- https://github.com/tektoncd/pipelines-as-code/releases/tag/v0.37.8x-refsource-misc
- https://github.com/tektoncd/pipelines-as-code/releases/tag/v0.39.6x-refsource-misc
- https://github.com/tektoncd/pipelines-as-code/releases/tag/v0.42.1x-refsource-misc
- https://github.com/tektoncd/pipelines-as-code/releases/tag/v0.48.0x-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.