Tekton Pipelines project provides k8s-style resources for declaring CI/CD-style pipelines. Versions 0.60.0 through 1.0.0, 1.1.0 through 1.3.2, 1.4.0 through 1.6.0, 1.7.0 through 1.9.0, 1.10.0, and 1.10.1 have a denial-of-service vulnerability in that allows any user who can create a TaskRun or PipelineRun to crash the controller cluster-wide by setting .spec.taskRef.resolver (or .spec.pipelineRef.resolver) to a string of 31+ characters. The crash occurs because GenerateDeterministicNameFromSpec produces a name exceeding the 63-character DNS-1123 label limit, and its truncation logic panics on a [-1] slice bound since the generated name contains no spaces. Once crashed, the controller enters a CrashLoopBackOff on restart (as it re-reconciles the offending resource), blocking all CI/CD reconciliation until the resource is manually deleted. Built-in resolvers (git, cluster, bundles, hub) are unaffected due to their short names, but any custom resolver name triggers the bug. The fix truncates the resolver-name prefix instead of the full string, preserving the hash suffix for determinism and uniqueness. This issue has been patched in versions 1.0.1, 1.3.3, 1.6.1, 1.9.2 and 1.10.2.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.0004.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
tektoncd pipeline affected
Version Status Constraints
>= 0.60.0, < 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
—

No data.

No data.

Vendor Product Confidence Versions
Tektoncd Pipeline 100%
Version Status Scheme Platform
[0.60.0,1.0.1)
 affected semver —
[1.1.0,1.3.3)
 affected semver —
[1.4.0,1.6.1)
 affected semver —
[1.7.0,1.9.2)
 affected semver —
[1.10.0,1.10.2)
 affected semver —

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-cv4x-93xx-wgfj Tekton Pipelines controller panic via long resolver name in TaskRun/PipelineRun
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/tektoncd/pipeline/commit/5eead3f859b9f938e86039e4d29185092c1d4ee6 cve-icon cve-icon cve-icon
https://github.com/tektoncd/pipeline/security/advisories/GHSA-cv4x-93xx-wgfj cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-33022 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-33022 cve-icon
History

Sat, 21 Mar 2026 05:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-130
References
Metrics threat_severity

None

 threat_severity

Moderate

Fri, 20 Mar 2026 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Fri, 20 Mar 2026 16:30:00 +0000

Type Values Removed Values Added
First Time appeared Tektoncd
Tektoncd pipeline
Vendors & Products Tektoncd
Tektoncd pipeline

Fri, 20 Mar 2026 08:00:00 +0000

Type Values Removed Values Added
Description Tekton Pipelines project provides k8s-style resources for declaring CI/CD-style pipelines. Versions 0.60.0 through 1.0.0, 1.1.0 through 1.3.2, 1.4.0 through 1.6.0, 1.7.0 through 1.9.0, 1.10.0, and 1.10.1 have a denial-of-service vulnerability in that allows any user who can create a TaskRun or PipelineRun to crash the controller cluster-wide by setting .spec.taskRef.resolver (or .spec.pipelineRef.resolver) to a string of 31+ characters. The crash occurs because GenerateDeterministicNameFromSpec produces a name exceeding the 63-character DNS-1123 label limit, and its truncation logic panics on a [-1] slice bound since the generated name contains no spaces. Once crashed, the controller enters a CrashLoopBackOff on restart (as it re-reconciles the offending resource), blocking all CI/CD reconciliation until the resource is manually deleted. Built-in resolvers (git, cluster, bundles, hub) are unaffected due to their short names, but any custom resolver name triggers the bug. The fix truncates the resolver-name prefix instead of the full string, preserving the hash suffix for determinism and uniqueness. This issue has been patched in versions 1.0.1, 1.3.3, 1.6.1, 1.9.2 and 1.10.2.
Title Tekton Pipelines: Controller can panic when setting long resolver names in TaskRun/PipelineRun
Weaknesses CWE-129
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-03-20T18:07:35.331Z

Reserved: 2026-03-17T17:22:14.667Z

Link: CVE-2026-33022

cve-icon Vulnrichment

Updated: 2026-03-20T16:22:21.183Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-03-20T08:16:11.293

Modified: 2026-03-20T13:37:50.737

Link: CVE-2026-33022

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-03-20T07:48:15Z

Links: CVE-2026-33022 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-03-20T16:27:56Z

Weaknesses