VYPR
← All advisories
Moderate severityNVD Advisory· Published Mar 20, 2026· Updated Mar 20, 2026

Tekton Pipelines: Controller can panic when setting long resolver names in TaskRun/PipelineRun

CVE-2026-33022

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
github.com/tektoncd/pipelineGo
>= 0.60.0, < 1.0.11.0.1
github.com/tektoncd/pipelineGo
>= 1.1.0, < 1.3.31.3.3
github.com/tektoncd/pipelineGo
>= 1.4.0, < 1.6.11.6.1
github.com/tektoncd/pipelineGo
>= 1.7.0, < 1.9.21.9.2
github.com/tektoncd/pipelineGo
>= 1.10.0, < 1.10.21.10.2

Affected products

223

Patches

Vulnerability mechanics

References

9

News mentions

0

No linked articles in our index yet.