CVE-2026-40938
Detail
Modified After Enrichment This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.
Current Description
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.
Analysis
Description
Tekton Pipelines project provides k8s-style resources for declaring CI/CD-style pipelines. From 1.0.0 to before 1.11.0, 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. This vulnerability is fixed in 1.11.1.
Metrics
CVSS Version 4.0
CVSS Version 3.x
CVSS Version 2.0
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 3.x Severity and Vector Strings:
Vector:
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS 2.0 Severity and Vector Strings:
NVD assessment
not yet provided.
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Weakness Enumeration
CWE-ID
CWE Name
Source
CWE-88
Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
GitHub, Inc.
redhat-SADP
Change History
13 change records found show changes
CVE Modified by redhat-SADP
8/03/2026 9:18:21 AM
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CVE Modified by redhat-SADP
7/27/2026 9:17:57 AM
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CVE Modified by redhat-SADP
7/20/2026 8:19:07 AM
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CVE Modified by redhat-SADP
7/14/2026 10:21:10 PM
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[{"vendor":"Red Hat","product":"Red Hat OpenShift Builds 1.7.4","defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift_builds:1.7::el9"]},{"vendor":"Red Hat","product":"Red Hat OpenShift Builds 1.8.0","defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift_builds:1.8::el9"]},{"vendor":"Red Hat","product":"Red Hat OpenShift Pipelines 1.21","defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift_pipelines:1.21::el9"]},{"vendor":"Red Hat","product":"OpenShift Pipelines","defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift_pipelines:1"]},{"vendor":"Red Hat","product":"OpenShift Lightspeed","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:openshift_lightspeed"]},{"vendor":"Red Hat","product":"OpenShift Serverless","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:serverless:1"]},{"vendor":"Red Hat","product":"Red Hat OpenShift AI (RHOAI)","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:openshift_ai"]},{"vendor":"Red Hat","product":"Red Hat OpenShift Virtualization 4","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:container_native_virtualization:4"]},{"vendor":"Red Hat","product":"Red Hat Trusted Artifact Signer","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:trusted_artifact_signer:1"]}]
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CVE Modified by redhat-SADP
7/08/2026 9:16:41 AM
Action
Type
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Affected
[{"vendor":"Red Hat","product":"Red Hat OpenShift Builds 1.7.3","defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift_builds:1.7::el9"]},{"vendor":"Red Hat","product":"Red Hat OpenShift Builds 1.8.0","defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift_builds:1.8::el9"]},{"vendor":"Red Hat","product":"Red Hat OpenShift Pipelines 1.21","defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift_pipelines:1.21::el9"]},{"vendor":"Red Hat","product":"OpenShift Pipelines","defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift_pipelines:1"]},{"vendor":"Red Hat","product":"OpenShift Lightspeed","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:openshift_lightspeed"]},{"vendor":"Red Hat","product":"OpenShift Serverless","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:serverless:1"]},{"vendor":"Red Hat","product":"Red Hat OpenShift AI (RHOAI)","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:openshift_ai"]},{"vendor":"Red Hat","product":"Red Hat OpenShift Virtualization 4","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:container_native_virtualization:4"]},{"vendor":"Red Hat","product":"Red Hat Trusted Artifact Signer","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:trusted_artifact_signer:1"]}]
[{"vendor":"Red Hat","product":"Red Hat OpenShift Builds 1.7.4","defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift_builds:1.7::el9"]},{"vendor":"Red Hat","product":"Red Hat OpenShift Builds 1.8.0","defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift_builds:1.8::el9"]},{"vendor":"Red Hat","product":"Red Hat OpenShift Pipelines 1.21","defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift_pipelines:1.21::el9"]},{"vendor":"Red Hat","product":"OpenShift Pipelines","defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift_pipelines:1"]},{"vendor":"Red Hat","product":"OpenShift Lightspeed","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:openshift_lightspeed"]},{"vendor":"Red Hat","product":"OpenShift Serverless","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:serverless:1"]},{"vendor":"Red Hat","product":"Red Hat OpenShift AI (RHOAI)","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:openshift_ai"]},{"vendor":"Red Hat","product":"Red Hat OpenShift Virtualization 4","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:container_native_virtualization:4"]},{"vendor":"Red Hat","product":"Red Hat Trusted Artifact Signer","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:trusted_artifact_signer:1"]}]
CVE Modified by redhat-SADP
6/29/2026 11:19:21 PM
Action
Type
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CVSS V3.1
AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Added
CWE
CWE-88
Added
Reference
https://access.redhat.com/errata/RHSA-2026:17546
Added
Reference
https://access.redhat.com/errata/RHSA-2026:24359
Added
Reference
https://access.redhat.com/errata/RHSA-2026:24484
Added
Reference
https://access.redhat.com/errata/RHSA-2026:26519
Added
Reference
https://access.redhat.com/errata/RHSA-2026:26538
Added
Reference
https://access.redhat.com/security/cve/CVE-2026-40938
Added
Reference
https://bugzilla.redhat.com/show_bug.cgi?id=2460292
Added
Reference
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40938.json
Added
Affected
[{"vendor":"Red Hat","product":"Red Hat OpenShift Builds 1.7.3","defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift_builds:1.7::el9"]},{"vendor":"Red Hat","product":"Red Hat OpenShift Builds 1.8.0","defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift_builds:1.8::el9"]},{"vendor":"Red Hat","product":"Red Hat OpenShift Pipelines 1.21","defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift_pipelines:1.21::el9"]},{"vendor":"Red Hat","product":"OpenShift Pipelines","defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift_pipelines:1"]},{"vendor":"Red Hat","product":"OpenShift Lightspeed","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:openshift_lightspeed"]},{"vendor":"Red Hat","product":"OpenShift Serverless","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:serverless:1"]},{"vendor":"Red Hat","product":"Red Hat OpenShift AI (RHOAI)","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:openshift_ai"]},{"vendor":"Red Hat","product":"Red Hat OpenShift Virtualization 4","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:container_native_virtualization:4"]},{"vendor":"Red Hat","product":"Red Hat Trusted Artifact Signer","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:trusted_artifact_signer:1"]}]
CVE Modified by CISA-ADP
6/17/2026 6:45:54 AM
Action
Type
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SSVC
{"timestamp":"2026-04-22T18:31:54.871943Z","id":"CVE-2026-40938","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}
CVE Modified by GitHub, Inc.
6/17/2026 6:45:54 AM
Action
Type
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Affected
[{"vendor":"tektoncd","product":"pipeline","versions":[{"version":">= 1.0.0, < 1.0.2","status":"affected"},{"version":">= 1.2.0, < 1.3.4","status":"affected"},{"version":">= 1.4.0, < 1.6.2","status":"affected"},{"version":">= 1.7.0, < 1.9.3","status":"affected"},{"version":">= 1.10.0, < 1.11.1","status":"affected"}]}]
CVE Modified by GitHub, Inc.
5/21/2026 7:16:44 PM
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Changed
Description
Tekton Pipelines project provides k8s-style resources for declaring CI/CD-style pipelines. From 1.0.0 to before 1.11.0, 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. This vulnerability is fixed in 1.11.1.
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.
Reanalysis by NIST
4/28/2026 11:06:01 AM
Action
Type
Old Value
New Value
Added
CVSS V3.1
AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Removed
CVSS V3.1
AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Initial Analysis by NIST
4/27/2026 2:05:34 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Added
CPE Configuration
OR
*cpe:2.3:a:linuxfoundation:tekton_pipelines:*:*:*:*:*:go:*:* versions from (including) 1.0.0 up to (excluding) 1.11.0
Added
Reference Type
CISA-ADP: https://github.com/tektoncd/pipeline/security/advisories/GHSA-94jr-7pqp-xhcq Types: Exploit, Vendor Advisory
Added
Reference Type
GitHub, Inc.: https://github.com/tektoncd/pipeline/releases/tag/v1.11.1 Types: Release Notes
Added
Reference Type
GitHub, Inc.: https://github.com/tektoncd/pipeline/security/advisories/GHSA-94jr-7pqp-xhcq Types: Exploit, Vendor Advisory
CVE Modified by CISA-ADP
4/22/2026 3:17:07 PM
Action
Type
Old Value
New Value
Added
Reference
https://github.com/tektoncd/pipeline/security/advisories/GHSA-94jr-7pqp-xhcq
New CVE Received from GitHub, Inc.
4/21/2026 5:16:46 PM
Action
Type
Old Value
New Value
Added
Description
Tekton Pipelines project provides k8s-style resources for declaring CI/CD-style pipelines. From 1.0.0 to before 1.11.0, 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. This vulnerability is fixed in 1.11.1.
Added
CVSS V3.1
AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Added
CWE
CWE-88
Added
Reference
https://github.com/tektoncd/pipeline/releases/tag/v1.11.1
Added
Reference
https://github.com/tektoncd/pipeline/security/advisories/GHSA-94jr-7pqp-xhcq
Quick Info
CVE Dictionary Entry: CVE-2026-40938 NVD
Published Date: 04/21/2026 NVD
Last Modified: 08/03/2026
Source: GitHub, Inc.
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