attr < 2.6.0 Symlink Traversal Privilege Escalation via getfattr/setfattr

{
  "id": "f2ddcbfac17ccd42a5eff1f0139ff0ee92e1762f2af97c277a05b7938a2154b4",
  "url": "https://osv.dev/vulnerability/CVE-2026-54371",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "attr < 2.6.0 Symlink Traversal Privilege Escalation via getfattr/setfattr",
    "summary": "attr before version 2.6.0 contains a symlink traversal vulnerability in the getfattr and setfattr utilities that allows local attackers to escalate privileges by replacing a pathname component with a symbolic link during directory hierarchy traversal. Attackers who control a pathname component can redirect getfattr and setfattr operations to arbitrary files by substituting a symlink, leading to local privilege escalation when getfattr or setfattr is invoked by a privileged process over an attacker-controlled path.",
    "evidence": "osv:CVE-2026-54371",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-54371",
      "aliases": [
        "CVE-2026-54371"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://cgit.git.savannah.nongnu.org/cgit/attr.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "c440855d6b33446edf4b5eb1a2d892281f15a99b"
                },
                {
                  "fixed": "49f79e947270f06940b9100fa638f85dddc4aa7f"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "fixed": "c440855d6b33446edf4b5eb1a2d892281f15a99b"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "49f79e947270f06940b9100fa638f85dddc4aa7f"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54371.json"
          }
        }
      ],
      "modified": "2026-10-31T10:30:16.983988487Z",
      "provider": "osv",
      "references": [
        "https://savannah.nongnu.org/projects/attr/",
        "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-54371.json",
        "https://access.redhat.com/errata/RHSA-2026:34889",
        "https://access.redhat.com/errata/RHSA-2026:56133",
        "https://access.redhat.com/errata/RHSA-2026:59380",
        "https://access.redhat.com/errata/RHSA-2026:60226",
        "https://access.redhat.com/errata/RHSA-2026:61783",
        "https://access.redhat.com/errata/RHSA-2026:63135",
        "https://access.redhat.com/errata/RHSA-2026:63138",
        "https://access.redhat.com/errata/RHSA-2026:66018",
        "https://access.redhat.com/security/cve/CVE-2026-54371",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54371.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-54371",
        "https://www.vulncheck.com/advisories/attr-symlink-traversal-privilege-escalation-via-getfattr-setfattr",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2490283",
        "https://cgit.git.savannah.nongnu.org/cgit/attr.git/commit/?id=49f79e947270f06940b9100fa638f85dddc4aa7f",
        "https://cgit.git.savannah.nongnu.org/cgit/attr.git/commit/?id=c440855d6b33446edf4b5eb1a2d892281f15a99b"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-59"
        ],
        "cna_assigner": "VulnCheck",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "2.6.0"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              }
            ]
          },
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "2.6.0"
                  }
                ],
                "source": "CPE_FIELD",
                "strategy": "CPEApplicability"
              }
            ]
          },
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "2.6.0"
                  }
                ],
                "source": "DESCRIPTION"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54371.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-54371",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 460112,
  "published_at": "2026-06-29T12:39:23.594+00:00"
}