CVE detail
CVE-2026-40938
Tekton Pipelines project provides k8s-style resources for declaring CI/CD-style pipelines. Starting in version 1.0.0 and prior to versions 1.0.2, 1.3.4, 1.6.2, 1.9.3, and 1.11.1, the git resolver's revision parameter is passed directly as a positional argument to git fetch without any validation that it does not begin with a - character. Because git parses flags from mixed positional arguments, an attacker can inject arbitrary git fetch flags such as --upload-pack=<binary>. Combined with the validateRepoURL function explicitly permitting URLs that begin with / (local filesystem paths), a tenant who can submit ResolutionRequest objects can chain these two behaviors to execute an arbitrary binary on the resolver pod. The tekton-pipelines-resolvers ServiceAccount holds cluster-wide get/list/watch on all Secrets, so code execution on the resolver pod enables full cluster-wide secret exfiltration. Versions 1.0.2, 1.3.4, 1.6.2, 1.9.3, and 1.11.1 fix the issue.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 24.0 · diversity 13.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
10 source links · newest first
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40938.jsonsecurity.access.redhat.com
No excerpt available.
Vendor Advisorysecurity.access.redhat.comApr 21, 2026, 9:16 PM - https://bugzilla.redhat.com/show_bug.cgi?id=2460292bugzilla.redhat.com
No excerpt available.
Exploitbugzilla.redhat.comApr 21, 2026, 9:16 PM - https://access.redhat.com/security/cve/CVE-2026-40938access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comApr 21, 2026, 9:16 PM - https://access.redhat.com/errata/RHSA-2026:26538access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comApr 21, 2026, 9:16 PM - https://access.redhat.com/errata/RHSA-2026:26519access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comApr 21, 2026, 9:16 PM - https://access.redhat.com/errata/RHSA-2026:24484access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comApr 21, 2026, 9:16 PM - https://access.redhat.com/errata/RHSA-2026:24359access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comApr 21, 2026, 9:16 PM - https://access.redhat.com/errata/RHSA-2026:17546access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comApr 21, 2026, 9:16 PM No excerpt available.
Exploitgithub.comApr 21, 2026, 9:16 PMNo excerpt available.
Exploitgithub.comApr 21, 2026, 9:16 PM
Exploit code
Public exploit repository references
Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.
0 repository references · best confidence N/A · max 0 stars
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