Tekton Pipelines git resolver has path traversal that allows reading arbitrary files from the resolver pod

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Summary

CVECVE-2026-33211
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-24 00:16:29 UTC
Updated2026-07-09 13:16:58 UTC
DescriptionTekton Pipelines project provides k8s-style resources for declaring CI/CD-style pipelines. Starting in version 1.0.0 and prior to versions 1.0.1, 1.3.3, 1.6.1, 1.9.2, and 1.10.2, the Tekton Pipelines git resolver is vulnerable to path traversal via the `pathInRepo` parameter. A tenant with permission to create `ResolutionRequests` (e.g. by creating `TaskRuns` or `PipelineRuns` that use the git resolver) can read arbitrary files from the resolver pod's filesystem, including ServiceAccount tokens. The file contents are returned base64-encoded in `resolutionrequest.status.data`. Versions 1.0.1, 1.3.3, 1.6.1, 1.9.2, and 1.10.2 contain a patch.

Risk And Classification

Primary CVSS: v3.1 9.6 CRITICAL from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

Problem Types: CWE-22 | CWE-22 CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') | CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary9.6CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
3.1ADPCVSS9.6CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
3.1[email protected]Secondary9.6CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
3.10b0ca135-0b70-47e7-9f44-1890c2a1c46cSecondary9.6CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
3.1CNADECLARED9.6CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Linuxfoundation Tekton Pipelines All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Tektoncd Pipeline affected >= 1.0.0, < 1.0.1 Not specified
CNA Tektoncd Pipeline affected >= 1.1.0, < 1.3.3 Not specified
CNA Tektoncd Pipeline affected >= 1.4.0, < 1.6.1 Not specified
CNA Tektoncd Pipeline affected >= 1.7.0, < 1.9.2 Not specified
CNA Tektoncd Pipeline affected >= 1.10.0, < 1.10.2 Not specified
ADP Red Hat Red Hat OpenShift Builds 1.6.5 Not specified Not specified
ADP Red Hat Red Hat OpenShift Builds 1.7.4 Not specified Not specified
ADP Red Hat Red Hat OpenShift Pipelines 1.21 Not specified Not specified
ADP Red Hat Red Hat OpenShift Pipelines 1.2 Not specified Not specified
ADP Red Hat Red Hat Trusted Artifact Signer 1.3 Not specified Not specified
ADP Red Hat OpenShift Pipelines Not specified Not specified
ADP Red Hat OpenShift Serverless Not specified Not specified
ADP Red Hat Builds For Red Hat OpenShift Not specified Not specified
ADP Red Hat Red Hat OpenShift AI RHOAI Not specified Not specified
ADP Red Hat Red Hat OpenShift Virtualization 4 Not specified Not specified

References

ReferenceSourceLinkTags
access.redhat.com/errata/RHSA-2026:10125 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:24484 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
github.com/tektoncd/pipeline/security/advisories/GHSA-j5q5-j9gm-2w5c [email protected] github.com Patch, Vendor Advisory
github.com/tektoncd/pipeline/commit/3ca7bc6e6dd1d97f80b84f78370d91edaf02... [email protected] github.com Patch
access.redhat.com/errata/RHSA-2026:21932 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:10155 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:10066 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
github.com/tektoncd/pipeline/commit/ec7755031a183b345cf9e64bea0e0505c1b9... [email protected] github.com Patch
github.com/tektoncd/pipeline/commit/318006c4e3a5 [email protected] github.com Patch
access.redhat.com/errata/RHSA-2026:10158 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:6170 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
github.com/tektoncd/pipeline/commit/961388fcf3374bc7656d28ab58ca84987e0a... [email protected] github.com Patch
github.com/tektoncd/pipeline/commit/b1fee65b88aa969069c14c120045e97c37d9... [email protected] github.com Patch
access.redhat.com/errata/RHSA-2026:21931 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
github.com/tektoncd/pipeline/commit/cdb4e1e97a4f3170f9bc2cbfff83a6c8107b... [email protected] github.com Patch
security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33211.json 0b0ca135-0b70-47e7-9f44-1890c2a1c46c security.access.redhat.com
github.com/tektoncd/pipeline/commit/10fa538f9a2b6d01c75138f1ed7ba3da0e34... [email protected] github.com Patch
access.redhat.com/security/cve/CVE-2026-33211 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:6166 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:10026 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
bugzilla.redhat.com/show_bug.cgi 0b0ca135-0b70-47e7-9f44-1890c2a1c46c bugzilla.redhat.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

SourceTimeEvent
ADP2026-03-24T00:02:20.093ZReported to Red Hat.
ADP2026-03-23T23:55:54.089ZMade public.

Solutions

ADP: RHSA-2026:10155: Red Hat OpenShift Builds 1.6.5

ADP: RHSA-2026:10158: Red Hat OpenShift Builds 1.7.4

ADP: RHSA-2026:6170: Red Hat OpenShift Pipelines 1.21

ADP: RHSA-2026:6166: Red Hat OpenShift Pipelines 1.21

ADP: RHSA-2026:24484: Red Hat OpenShift Pipelines 1.21

ADP: RHSA-2026:10066: Red Hat OpenShift Pipelines 1.2

ADP: RHSA-2026:21932: Red Hat OpenShift Pipelines 1.2

ADP: RHSA-2026:21931: Red Hat OpenShift Pipelines 1.2

ADP: RHSA-2026:10026: Red Hat OpenShift Pipelines 1.2

ADP: RHSA-2026:10125: Red Hat Trusted Artifact Signer 1.3

Workarounds

ADP: To mitigate this vulnerability, restrict the creation of ResolutionRequests to trusted users and service accounts. Implement strict Role-Based Access Control (RBAC) policies to limit which tenants can create TaskRuns or PipelineRuns that utilize the Tekton Pipelines git resolver. This reduces the exposure by preventing unauthorized access to the resolver pod's filesystem.

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