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

{
  "id": "f649b2a4415f5a7747a2bf524227aee632f0f04a42ed435f05dfef2d2e4f4a1f",
  "url": "https://osv.dev/vulnerability/CVE-2026-33022",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Tekton Pipelines: Controller can panic when setting long resolver names in TaskRun/PipelineRun",
    "summary": "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.",
    "evidence": "osv:CVE-2026-33022",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-33022",
      "aliases": [
        "CVE-2026-33022",
        "GHSA-cv4x-93xx-wgfj",
        "GO-2026-4730"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/tektoncd/pipeline",
              "type": "GIT",
              "events": [
                {
                  "introduced": "d649ded4ca0c48759273d7278c1022edce247fe7"
                },
                {
                  "fixed": "ec7755031a183b345cf9e64bea0e0505c1b9cb78"
                },
                {
                  "introduced": "43c0bb99fa768ff711ad92445c43179b93232877"
                },
                {
                  "fixed": "10fa538f9a2b6d01c75138f1ed7ba3da0e34687c"
                },
                {
                  "introduced": "eaf7dc1dca3e314c26d14caff8207026a2dfade7"
                },
                {
                  "fixed": "3fb58318e1805be7bdaaafcb23e42ade2edbf59c"
                },
                {
                  "introduced": "478d30f0a799663216cd225cf826e0b1efdadee3"
                },
                {
                  "fixed": "3ca7bc6e6dd1d97f80b84f78370d91edaf023cbd"
                },
                {
                  "introduced": "9db88e0a3f072ade16ad0d88f1fd6a391281cf39"
                },
                {
                  "fixed": "cdb4e1e97a4f3170f9bc2cbfff83a6c8107bc3db"
                },
                {
                  "fixed": "5eead3f859b9f938e86039e4d29185092c1d4ee6"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:linuxfoundation:tekton_pipelines:*:*:*:*:*:go:*:*",
                    "range": [
                      {
                        "introduced": "0.60.0"
                      },
                      {
                        "fixed": "1.0.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:linuxfoundation:tekton_pipelines:*:*:*:*:*:go:*:*",
                    "range": [
                      {
                        "introduced": "1.1.0"
                      },
                      {
                        "fixed": "1.3.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:linuxfoundation:tekton_pipelines:*:*:*:*:*:go:*:*",
                    "range": [
                      {
                        "introduced": "1.4.0"
                      },
                      {
                        "fixed": "1.6.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:linuxfoundation:tekton_pipelines:*:*:*:*:*:go:*:*",
                    "range": [
                      {
                        "introduced": "1.7.0"
                      },
                      {
                        "fixed": "1.9.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:linuxfoundation:tekton_pipelines:*:*:*:*:*:go:*:*",
                    "range": [
                      {
                        "introduced": "1.10.0"
                      },
                      {
                        "fixed": "1.10.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "5eead3f859b9f938e86039e4d29185092c1d4ee6"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.9.1",
            "v1.10.1",
            "v1.10.0",
            "v1.9.0",
            "v1.6.0",
            "v1.7.0",
            "v1.5.0",
            "v1.3.2",
            "v1.4.0",
            "v1.3.1",
            "v1.3.0",
            "v1.2.0",
            "v1.0.0",
            "v1.1.0",
            "v0.70.0",
            "v0.69.0",
            "v0.68.0",
            "v0.66.0",
            "v0.65.0",
            "v0.64.0",
            "v0.63.0",
            "v0.62.0",
            "v0.61.0",
            "v0.60.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33022.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:40.512841891Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33022.json",
        "https://github.com/tektoncd/pipeline/security/advisories/GHSA-cv4x-93xx-wgfj",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-33022",
        "https://github.com/tektoncd/pipeline/commit/5eead3f859b9f938e86039e4d29185092c1d4ee6"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-129"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33022.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-33022",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 507944,
  "published_at": "2026-03-20T07:48:15.383+00:00"
}