@e2e-dev/github before 0.4.1 CI Report Hijacking via Predictable Comment Marker

{
  "id": "17cdc76b12b3b50d131a7d775031b651fa148a97cc5e88483d8feeac1e2d7824",
  "url": "https://osv.dev/vulnerability/CVE-2026-113357",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "@e2e-dev/github before 0.4.1 CI Report Hijacking via Predictable Comment Marker",
    "summary": "@e2e-dev/github before 0.4.1 contains an improper authorization vulnerability that allows pull request commenters to hijack CI test reports by posting comments with the predictable marker. Because findComment and upsertComment in post.ts never check the comment author, attackers can receive results in their own comment and edit failures to passes, or suppress genuine reports entirely.",
    "evidence": "osv:CVE-2026-113357",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-113357",
      "aliases": [
        "CVE-2026-113357"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/tester-army/e2e",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "a7b13a6cda26b8c10bd16510d9c81149681e3cdb"
                },
                {
                  "fixed": "ce4dac373784f87fade6808119ba537a0b4965fc"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.4.1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "fixed": "ce4dac373784f87fade6808119ba537a0b4965fc"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "e2e@0.21.0",
            "@e2e-dev/web@0.15.0",
            "@e2e-dev/smol@0.1.1",
            "@e2e-dev/mobile@0.12.1",
            "@e2e-dev/decision@0.2.2",
            "e2e@0.20.0",
            "@e2e-dev/mobile@0.12.0",
            "@e2e-dev/limrun@0.2.0",
            "@e2e-dev/decision@0.2.1",
            "e2e@0.19.0",
            "@e2e-dev/web@0.14.0",
            "@e2e-dev/smol@0.1.0",
            "@e2e-dev/mobile@0.11.0",
            "@e2e-dev/kernel@0.2.1",
            "@e2e-dev/eas@0.3.1",
            "@e2e-dev/decision@0.2.0",
            "e2e@0.18.0",
            "@e2e-dev/web@0.13.0",
            "@e2e-dev/mobile@0.10.0",
            "@e2e-dev/kernel@0.2.0",
            "@e2e-dev/github@0.4.0",
            "@e2e-dev/eas@0.3.0",
            "@e2e-dev/decision@0.1.0",
            "e2e@0.17.0",
            "@e2e-dev/web@0.12.0",
            "@e2e-dev/mobile@0.9.2",
            "@e2e-dev/github@0.3.3",
            "e2e@0.16.0",
            "@e2e-dev/web@0.11.2",
            "@e2e-dev/mobile@0.9.1",
            "@e2e-dev/kernel@0.1.2",
            "@e2e-dev/github@0.3.2",
            "@e2e-dev/eas@0.2.1",
            "e2e@0.15.2",
            "@e2e-dev/mobile@0.9.0",
            "@e2e-dev/eas@0.2.0",
            "e2e@0.15.1",
            "@e2e-dev/web@0.11.1",
            "@e2e-dev/mobile@0.8.1",
            "@e2e-dev/kernel@0.1.1",
            "@e2e-dev/github@0.3.1",
            "@e2e-dev/eas@0.1.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-113357.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:34.728346302Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/113xxx/CVE-2026-113357.json",
        "https://github.com/tester-army/e2e/releases/tag/%40e2e-dev%2Fgithub%400.4.1",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-113357",
        "https://www.vulncheck.com/advisories/e2e-dev-github-before-0.4.1-ci-report-hijacking-via-predictable-comment-marker",
        "https://github.com/tester-army/e2e/commit/ce4dac373784f87fade6808119ba537a0b4965fc",
        "https://github.com/tester-army/e2e/pull/1161",
        "https://github.com/tester-army/e2e",
        "https://github.com/tester-army/e2e/blob/37e946907bc26743d68861b97127271143441eb3/packages/github/src/post.ts"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-863"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/113xxx/CVE-2026-113357.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-113357",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 502105,
  "published_at": "2026-10-20T10:41:41.607+00:00"
}