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CVE-2026-33211

Linuxfoundation Tekton Pipelines path traversal

9.6 CRITICALEPSS 0.70%
  1. Published23 Mar 2026

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

Affected products

Linuxfoundation Tekton Pipelines1.0.0 · ≥ 1.1.0 < 1.3.3 · ≥ 1.10.0 < 1.10.2 · ≥ 1.4.0 < 1.6.1

Remediation

Fixed in
Linuxfoundation Tekton Pipelines≥ 1.3.3

References

and 11 more references

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Frequently asked

Is CVE-2026-33211 being actively exploited?

CVE-2026-33211 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.70%.

How severe is CVE-2026-33211?

CVE-2026-33211 has a CVSS 3.1 base score of 9.6, rated critical. EPSS estimates a 0.70% probability of exploitation.

Which products are affected by CVE-2026-33211?

Affected products include Linuxfoundation Tekton Pipelines.

How do I fix CVE-2026-33211?

Upgrade affected software to a fixed version, for example Linuxfoundation Tekton Pipelines 1.3.3 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-33211 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.