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CVE-2026-33211

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

Critical9.6EPSS 0.58%
Published
Updated
Reserved
Assigned by
GitHub_M

Description

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

Timeline

  1. ID reserved

    By GitHub_M

  2. · 6 days later

    Published

  3. · 6 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2026-33211, by who scored it
Scored byCVSSScoreVector
GitHub_MCNA (assigner)3.1Critical9.6CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
redhat-SADPADP (enrichment)3.1Critical9.6CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
NVDNVD · Modified3.1Critical9.6CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
EPSS (exploitation in 30 days)
0.58% · top 52% of all CVEs (7 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.6.

Weakness

Affected products

  • tektoncd · pipeline

    • affected >= 1.0.0, < 1.0.1
    • affected >= 1.1.0, < 1.3.3
    • affected >= 1.4.0, < 1.6.1
    • affected >= 1.7.0, < 1.9.2
    • affected >= 1.10.0, < 1.10.2

Affected packages

From reviewed advisories of the GitHub Advisory Database.

References (21)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .