High 7.5Published Apr 21, 2026

CVE-2026-40938Tekton Pipelines: Git Resolver Unsanitized Revision Parameter Enables git Argument Injection Leading to RCE

Updated under an hour ago (Oct 26, 2026, 10:50 PM ET)

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It affects tektoncd pipeline and 8 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for tektoncd pipeline

Exploited in the last 30 days

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.

CVSS: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-88
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: Modified
Record last updated: Sep 7, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

tektoncd pipeline tektoncd:pipeline (from the name)	from 1.0.0, < 1.0.2; from 1.2.0, < 1.3.4; from 1.4.0, < 1.6.2; from 1.7.0, < 1.9.3; from 1.10.0, < 1.11.1	CNA record
Red Hat Red Hat OpenShift Builds 1.7.3 redhat:openshift_builds	from 1780373846 not affected	CISA ADP
Red Hat Red Hat OpenShift Pipelines 1.21 redhat:openshift_pipelines	from cli-1.21.1 not affected	CISA ADP
Red Hat OpenShift Lightspeed redhat:openshift_lightspeed	Versions not stated	CISA ADP
Red Hat OpenShift Serverless redhat:serverless	1	CISA ADP
Red Hat Red Hat OpenShift AI (RHOAI) redhat:openshift_ai	Versions not stated	CISA ADP
Red Hat Red Hat OpenShift Virtualization 4 redhat:container_native_virtualization	4	CISA ADP
Red Hat Red Hat Trusted Artifact Signer redhat:trusted_artifact_signer	1	CISA ADP
linuxfoundation tekton_pipelines linuxfoundation:tekton_pipelines	from 1.0.0 before 1.11.0	NVD

References

References

https://github.com/tektoncd/pipeline/security/advisories/GHSA-94jr-7pqp-xhcq	x-refsource-confirm, exploit, vendor-advisory
https://github.com/tektoncd/pipeline/releases/tag/v1.11.1	x-refsource-misc, release-notes
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://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40938.json

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.