CVE catalog
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 re
- Severity
- High · CVSS 8.5
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.79% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Cpe | tekton_pipelines | Not reported | 1.11.0 | fixed |
| Go | github.com/tektoncd/pipeline | Not reported | 1.11.1 | fixed |
| Go | github.com/tektoncd/pipeline | Not reported | 1.0.2 | fixed |
| Go | github.com/tektoncd/pipeline | Not reported | 1.3.4 | fixed |
| Go | github.com/tektoncd/pipeline | Not reported | 1.6.2 | fixed |
| Go | github.com/tektoncd/pipeline | Not reported | 1.9.3 | fixed |
| Cpe | tekton_pipelines | Not reported | 1.11.0 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Cpe | tekton_pipelines | cpe | Not reported | 1.11.0 | Not reported | Not reported | Not reported |
| Go | github.com/tektoncd/pipeline | Go | Not reported | 1.11.1 | Not reported | Not reported | Not reported |
| Go | github.com/tektoncd/pipeline | Go | Not reported | 1.0.2 | Not reported | Not reported | Not reported |
| Go | github.com/tektoncd/pipeline | Go | Not reported | 1.3.4 | Not reported | Not reported | Not reported |
| Go | github.com/tektoncd/pipeline | Go | Not reported | 1.6.2 | Not reported | Not reported | Not reported |
| Go | github.com/tektoncd/pipeline | Go | Not reported | 1.9.3 | Not reported | Not reported | Not reported |
| Cpe | tekton_pipelines | cpe | Not reported | 1.11.0 | Not reported | NVD-CVE-2026-40938 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://access.redhat.com/errata/RHSA-2026:17546]
- [https://access.redhat.com/errata/RHSA-2026:24359]
- [https://access.redhat.com/errata/RHSA-2026:24484]
- [https://access.redhat.com/errata/RHSA-2026:26519]
- [https://access.redhat.com/errata/RHSA-2026:26538]
- [https://access.redhat.com/security/cve/CVE-2026-40938]
- [https://bugzilla.redhat.com/show_bug.cgi?id=2460292]
- [https://github.com/tektoncd/pipeline/releases/tag/v1.11.1]
- [https://github.com/tektoncd/pipeline/security/advisories/GHSA-94jr-7pqp-xhcq]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-40938]
- [https://pkg.go.dev/vuln/GO-2026-5272]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40938.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1550.json]
[CERT-Bund public advisories] · [FIRST EPSS] · [Go Vulnerability Database] · [National Vulnerability Database (NVD)] · [Red Hat security advisories and VEX]