{
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      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-12171",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-05T19:03:58.537396Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-05T19:04:19.152Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/cookpete/auto-changelog/security/advisories/GHSA-xpvr-2hvx-m8q4"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://www.npmjs.com/",
          "defaultStatus": "unaffected",
          "packageName": "auto-changelog",
          "product": "auto-changelog",
          "repo": "https://github.com/cookpete/auto-changelog",
          "vendor": "cookpete",
          "versions": [
            {
              "lessThan": "2.6.1",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "d00xy-hash"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "Jordan Harband (ljharb)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eauto-changelog before 2.6.1 merges configuration from inside the target repository (the \u003ccode\u003e.auto-changelog\u003c/code\u003e file and the \u003ccode\u003eauto-changelog\u003c/code\u003e key in \u003ccode\u003epackage.json\u003c/code\u003e) into its options, and honors security-sensitive options from that untrusted source. The \u003ccode\u003ehandlebarsSetup\u003c/code\u003e option is passed to \u003ccode\u003erequire()\u003c/code\u003e, so running auto-changelog over attacker-controlled repository content (for example, in a CI workflow that checks out an untrusted pull request head, or locally on a forked or third-party repository) executes attacker-chosen code with the privileges of the invoking user or CI job, including access to workflow secrets, without the repository dependencies ever being installed. The \u003ccode\u003eplugins\u003c/code\u003e option similarly loads attacker-controlled modules from the repository. Under the same conditions, \u003ccode\u003eappendGitLog\u003c/code\u003e/\u003ccode\u003eappendGitTag\u003c/code\u003e allow git argument injection (e.g. \u003ccode\u003e--output=\u003c/code\u003e to write arbitrary files), \u003ccode\u003eoutput\u003c/code\u003e allows writing attacker-influenced content to arbitrary paths, and \u003ccode\u003etemplate\u003c/code\u003e causes an outbound request to an attacker-chosen URL. Version 2.6.1 treats in-repository configuration as untrusted and refuses to run when it sets these options, unless the new \u003ccode\u003e--unsafe-config\u003c/code\u003e flag is passed.\u003c/p\u003e"
            }
          ],
          "value": "auto-changelog before 2.6.1 merges configuration from inside the target repository (the .auto-changelog file and the auto-changelog key in package.json) into its options, and honors security-sensitive options from that untrusted source. The handlebarsSetup option is passed to require(), so running auto-changelog over attacker-controlled repository content (for example, in a CI workflow that checks out an untrusted pull request head, or locally on a forked or third-party repository) executes attacker-chosen code with the privileges of the invoking user or CI job, including access to workflow secrets, without the repository dependencies ever being installed. The plugins option similarly loads attacker-controlled modules from the repository. Under the same conditions, appendGitLog/appendGitTag allow git argument injection (e.g. --output= to write arbitrary files), output allows writing attacker-influenced content to arbitrary paths, and template causes an outbound request to an attacker-chosen URL. Version 2.6.1 treats in-repository configuration as untrusted and refuses to run when it sets these options, unless the new --unsafe-config flag is passed."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "LOCAL",
            "baseScore": 8.4,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "ACTIVE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
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          ]
        },
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          "cvssV3_1": {
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            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
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          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-829",
              "description": "CWE-829: Inclusion of Functionality from Untrusted Control Sphere",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-94",
              "description": "CWE-94: Improper Control of Generation of Code (\u0027Code Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-88",
              "description": "CWE-88: Improper Neutralization of Argument Delimiters in a Command (\u0027Argument Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-918",
              "description": "CWE-918: Server-Side Request Forgery (SSRF)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-05T16:25:19.098Z",
        "orgId": "7ffcee3d-2c14-4c3e-b844-86c6a321a158",
        "shortName": "harborist"
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      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/cookpete/auto-changelog/security/advisories/GHSA-xpvr-2hvx-m8q4"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/cookpete/auto-changelog/commit/1d02a48a0a57c69a3cd268aca375d64d50877c1a"
        }
      ],
      "solutions": [
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          "lang": "en",
          "supportingMedia": [
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              "value": "\u003cp\u003eUpgrade to auto-changelog 2.6.1 or later. Options that load code, inject git arguments, write outside the repository, or fetch URLs must now be passed on the command line; `--unsafe-config` restores the old behavior for fully trusted repositories only.\u003c/p\u003e"
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          ],
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        }
      ],
      "source": {
        "advisory": "GHSA-xpvr-2hvx-m8q4",
        "discovery": "EXTERNAL"
      },
      "title": "auto-changelog: code execution via untrusted in-repository configuration (handlebarsSetup/plugins), plus argument injection, path traversal, and SSRF",
      "workarounds": [
        {
          "lang": "en",
          "supportingMedia": [
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              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eDo not run auto-changelog over untrusted repository content, including CI workflows that check out pull request heads from forks.\u003c/p\u003e"
            }
          ],
          "value": "Do not run auto-changelog over untrusted repository content, including CI workflows that check out pull request heads from forks."
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    "assignerShortName": "harborist",
    "cveId": "CVE-2026-12171",
    "datePublished": "2026-10-05T16:25:19.098Z",
    "dateReserved": "2026-06-12T21:15:49.095Z",
    "dateUpdated": "2026-10-05T19:04:19.152Z",
    "state": "PUBLISHED"
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}