Dulwich 0.22.5 before 1.2.8 Path Traversal via Stash Pop Symlinks

{
  "id": "c2cf25e3692e64b58e9fb3246301136c9ba5f8af506ff9ea0ca0b6921bba0fc8",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-114098",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Dulwich 0.22.5 before 1.2.8 Path Traversal via Stash Pop Symlinks",
    "summary": "Dulwich from 0.22.5 before 1.2.8 contains a path traversal vulnerability in stash.py pop() that allows attackers to write arbitrary files outside the worktree through intermediate directory symlinks. Attackers can craft a malicious repository whose popped stash writes a payload into .git/hooks/post-checkout, achieving code execution on the next checkout.",
    "evidence": "cve:CVE-2026-114098",
    "products": [
      {
        "name": {
          "value": "dulwich",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-114098",
      "aliases": [
        "CVE-2026-114098"
      ],
      "metrics": [
        {
          "format": "CVSS",
          "cvssV4_0": {
            "version": "4.0",
            "baseScore": 7.3,
            "attackVector": "LOCAL",
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "userInteraction": "PASSIVE",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "privilegesRequired": "NONE",
            "subIntegrityImpact": "NONE",
            "vulnIntegrityImpact": "HIGH",
            "subAvailabilityImpact": "NONE",
            "vulnAvailabilityImpact": "HIGH",
            "subConfidentialityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH"
          }
        },
        {
          "format": "CVSS",
          "cvssV3_1": {
            "scope": "UNCHANGED",
            "version": "3.1",
            "baseScore": 7.8,
            "attackVector": "LOCAL",
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "integrityImpact": "HIGH",
            "userInteraction": "REQUIRED",
            "attackComplexity": "LOW",
            "availabilityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "confidentialityImpact": "HIGH"
          }
        }
      ],
      "affected": [
        {
          "vendor": "jelmer",
          "product": "dulwich",
          "versions": [
            {
              "status": "affected",
              "version": "0.22.5",
              "lessThan": "1.2.8",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "1.2.8",
              "versionType": "semver"
            }
          ],
          "packageURL": "pkg:pypi/dulwich",
          "defaultStatus": "unaffected"
        }
      ],
      "modified": "2026-10-27T21:54:10.359Z",
      "provider": "cve",
      "references": [
        "https://github.com/jelmer/dulwich/security/advisories/GHSA-cm62-gvxx-vmxx",
        "https://www.vulncheck.com/advisories/dulwich-0.22.5-before-1.2.8-path-traversal-via-stash-pop-symlinks"
      ],
      "provider_metadata": {
        "adp": [
          {
            "title": "CISA ADP Vulnrichment",
            "metrics": [
              {
                "other": {
                  "type": "ssvc",
                  "content": {
                    "id": "CVE-2026-114098",
                    "role": "CISA Coordinator",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "version": "2.0.3",
                    "timestamp": "2026-10-27T21:53:59.243541Z"
                  }
                }
              }
            ],
            "providerMetadata": {
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP",
              "dateUpdated": "2026-10-27T21:54:10.359Z"
            }
          }
        ],
        "cna": {
          "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
          "shortName": "VulnCheck",
          "dateUpdated": "2026-10-21T00:37:01.150Z"
        }
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-114098",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/containers/cna/metrics"
  },
  "source_id": "core-cve",
  "document_id": 400609,
  "published_at": "2026-10-21T00:37:01.15+00:00"
}