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Fencer Vulns
critical 9.6

CVE-2026-33211 json

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

published 2026-03-18 7 mo ago modified 2026-09-10 1 mo ago also GHSA-j5q5-j9gm-2w5c , GO-2026-4761 , EUVD-2026-14636

cvss
9.6
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 48%
public exploits
0
none known

Summary

Tekton Pipelines project provides k8s-style resources for declaring CI/CD-style pipelines. Starting in version 1.0.0 and prior to versions 1.0.1, 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.

Patch / fix

  • go github.com/tektoncd/pipeline 1.0.1, 1.3.3, 1.6.1, 1.9.2, 1.10.2, 1.11.1
  • Red Hat Builds for Red Hat OpenShift 1.6.0 1776859898
  • Red Hat Red Hat OpenShift Builds 1.7.3 1776860241
  • Red Hat Red Hat OpenShift Pipelines 1.2 1774596617, 1776925111, 1779865001, 1780044955
  • Red Hat Red Hat OpenShift Pipelines 1.21 1774556280, 1774871390, cli-1.21.1
  • Red Hat Red Hat Trusted Artifact Signer 1.3 1776339099
  • govulncheck-vulndb openSUSE Leap 15.6 0.0.20260326T203309-150000.1.155.2

suse advisories SUSE-SU-2026:1135-1

  • govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1
  • tekton-cli openSUSE Tumbleweed 0.44.1-1.1

opensuse advisories openSUSE-SU-2026:21483-1openSUSE-SU-2026:10529-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-33211 updated cvss 9.6

Tekton Pipelines: github.com/tektoncd/pipeline: Tekton Pipelines: Information disclosure via path traversal in git resolver

  • Red Hat OpenShift Pipelines openshift-pipelines/pipelines-nop-rhel9, openshift-pipelines/pipelines-opc-rhel9, openshift-pipelines/pipelines-events-rhel9, openshift-pipelines/pipelines-cli-tkn-rhel9, openshift-pipelines/pipelines-hub-api-rhel9, openshift-pipelines/pipelines-webhook-rhel9, +19 more
    affected: workaround, no fix available
  • Red Hat OpenShift Serverless openshift-serverless-1/kn-client-kn-rhel9, openshift-serverless-1/kn-plugin-func-func-util-rhel9
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Builds for Red Hat OpenShift 1.6.0 openshift-builds 1776859898
    fixed: vendor fix RHSA-2026:10155
  • Red Hat OpenShift Builds 1.7.3 openshift-builds 1776860241
    fixed: vendor fix RHSA-2026:10158
  • Red Hat OpenShift Pipelines 1.2 openshift-pipelines 1774596617, openshift-pipelines 1776925111, openshift-pipelines/pipelines-operator-bundle 1780044955, openshift-pipelines/pipelines-pipelines-as-code-controller-rhel9 1779865001
    fixed: vendor fix RHSA-2026:10066
  • Red Hat OpenShift Pipelines 1.21 openshift-pipelines 1774556280, openshift-pipelines 1774871390, serve-tkn-cli-1-21-serve-tkn-cli 1.21.1
    fixed: vendor fix RHSA-2026:6170
  • Red Hat Trusted Artifact Signer 1.3 rhtas 1776339099
    fixed: vendor fix RHSA-2026:10125
  • Red Hat Builds for Red Hat OpenShift openshift-builds/openshift-builds-waiters-rhel9, openshift-builds/openshift-builds-webhook-rhel9, openshift-builds/openshift-builds-controller-rhel9, openshift-builds/openshift-builds-git-cloner-rhel9, openshift-builds/openshift-builds-image-bundler-rhel9, openshift-builds/openshift-builds-image-processing-rhel9 Red Hat Builds for Red Hat OpenShift 1.6.0 openshift-builds 1776846586, openshift-builds 1776847666, openshift-builds 1776847748, openshift-builds 1776848251, openshift-builds 1776848853, openshift-builds 1776849392, +3 more Red Hat OpenShift AI (RHOAI) rhoai/odh-ml-pipelines-driver-rhel8, rhoai/odh-ml-pipelines-launcher-rhel8, rhoai/odh-ml-pipelines-api-server-v2-rhel8, rhoai/odh-ml-pipelines-persistenceagent-v2-rhel8, rhoai/odh-ml-pipelines-scheduledworkflow-v2-rhel8 Red Hat OpenShift Builds 1.7.3 openshift-builds 1776846372, openshift-builds 1776846493, openshift-builds 1776846689, openshift-builds 1776846936, openshift-builds 1776847166, openshift-builds 1776849396, +3 more Red Hat OpenShift Pipelines 1.2 openshift-pipelines 1775103097, openshift-pipelines 1775109483, openshift-pipelines 1775109494, openshift-pipelines 1775109495, openshift-pipelines 1775109499, openshift-pipelines 1775109516, +53 more Red Hat OpenShift Pipelines 1.21 openshift-pipelines 1774252909, openshift-pipelines 1774260907, openshift-pipelines 1774260980, openshift-pipelines 1774260981, openshift-pipelines 1774260987, openshift-pipelines 1774262408, +26 more
    not affected: vulnerable code not present
show 1 more
  • Red Hat OpenShift Virtualization 4 container-native-virtualization/kubevirt-ssp-operator-rhel9, container-native-virtualization/kubevirt-template-validator-rhel9, container-native-virtualization/kubevirt-tekton-tasks-create-datavolume-rhel9, container-native-virtualization/kubevirt-tekton-tasks-disk-virt-customize-rhel9
    not affected: component not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
7 mo ago

Exploit prediction

0.58% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 9.6 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
CISA ADP 3.1 9.6 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
NVD 3.1 9.6 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
GitHub 3.1 9.6 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

Affected packages

ecosystem package affected fixed in
go github.com/tektoncd/pipeline
>=1.0.0, <1.0.1
>=1.1.0, <1.3.3
>=1.4.0, <1.6.1
>=1.7.0, <1.9.2
>=1.10.0, <1.10.2
>=1.10.0, <1.11.1
1.0.1
1.3.3
1.6.1
1.9.2
1.10.2
1.11.1

Affected products

  • tektoncd pipeline
  • Red Hat Builds for Red Hat OpenShift 1.6.0
  • Red Hat Red Hat OpenShift Builds 1.7.3
  • Red Hat Red Hat OpenShift Pipelines 1.2
  • Red Hat Red Hat OpenShift Pipelines 1.21
  • Red Hat Red Hat Trusted Artifact Signer 1.3
  • Red Hat Builds for Red Hat OpenShift
  • Red Hat OpenShift Pipelines
  • Red Hat OpenShift Serverless
  • Red Hat Red Hat OpenShift AI (RHOAI)
  • Red Hat Red Hat OpenShift Virtualization 4

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.