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OESA-2026-3079 (CVE-2026-54369)

Vulnerability from osv_openeuler – Published: 2026-07-19 11:11 – Updated: 2026-08-06 11:11 – Source website
VLAI
Summary
acl security update
Details

This package contains commands for manipulating POSIX access control lists, and the libacl.so dynamic library which contains the POSIX 1003.1e draft standard 17 functions for manipulating access control lists.

Security Fix(es):

acl before version 2.4.0 contains a symlink traversal vulnerability in the libacl pathname-based functions acl_get_file(), acl_set_file(), acl_extended_file(), and acl_delete_def_file() that allows local attackers to escalate privileges by replacing any pathname component with a symbolic link. Attackers who control any component of a pathname processed by a privileged caller can redirect ACL read or write operations to arbitrary files or directories, enabling unauthorized manipulation of access control lists and local privilege escalation.(CVE-2026-54369)

acl before version 2.4.0 contains a time-of-check to time-of-use (TOCTOU) race condition vulnerability that allows local attackers to escalate privileges by replacing a pathname component with a symbolic link between an lstat() check and subsequent symlink-following operations such as stat(), chown(), chmod(), acl_get_file(), and acl_set_file(). Attackers who control a pathname component can redirect file access control list operations to arbitrary files when getfacl, setfacl, or chacl is invoked by a privileged process over an attacker-controlled path, resulting in local privilege escalation.(CVE-2026-54370)

Severity
7.1 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "acl-2.2.53-14.oe2003sp4.aarch64.rpm",
          "acl-debuginfo-2.2.53-14.oe2003sp4.aarch64.rpm",
          "acl-debugsource-2.2.53-14.oe2003sp4.aarch64.rpm",
          "libacl-2.2.53-14.oe2003sp4.aarch64.rpm",
          "libacl-devel-2.2.53-14.oe2003sp4.aarch64.rpm"
        ],
        "noarch": [
          "acl-help-2.2.53-14.oe2003sp4.noarch.rpm"
        ],
        "src": [
          "acl-2.2.53-14.oe2003sp4.src.rpm"
        ],
        "x86_64": [
          "acl-2.2.53-14.oe2003sp4.x86_64.rpm",
          "acl-debuginfo-2.2.53-14.oe2003sp4.x86_64.rpm",
          "acl-debugsource-2.2.53-14.oe2003sp4.x86_64.rpm",
          "libacl-2.2.53-14.oe2003sp4.x86_64.rpm",
          "libacl-devel-2.2.53-14.oe2003sp4.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP4",
        "name": "acl",
        "purl": "pkg:rpm/openEuler/acl\u0026distro=openEuler-20.03-LTS-SP4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.2.53-14.oe2003sp4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "acl-2.3.1-7.oe2203sp4.aarch64.rpm",
          "acl-debuginfo-2.3.1-7.oe2203sp4.aarch64.rpm",
          "acl-debugsource-2.3.1-7.oe2203sp4.aarch64.rpm",
          "libacl-2.3.1-7.oe2203sp4.aarch64.rpm",
          "libacl-devel-2.3.1-7.oe2203sp4.aarch64.rpm"
        ],
        "noarch": [
          "acl-help-2.3.1-7.oe2203sp4.noarch.rpm"
        ],
        "src": [
          "acl-2.3.1-7.oe2203sp4.src.rpm"
        ],
        "x86_64": [
          "acl-2.3.1-7.oe2203sp4.x86_64.rpm",
          "acl-debuginfo-2.3.1-7.oe2203sp4.x86_64.rpm",
          "acl-debugsource-2.3.1-7.oe2203sp4.x86_64.rpm",
          "libacl-2.3.1-7.oe2203sp4.x86_64.rpm",
          "libacl-devel-2.3.1-7.oe2203sp4.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:22.03-LTS-SP4",
        "name": "acl",
        "purl": "pkg:rpm/openEuler/acl\u0026distro=openEuler-22.03-LTS-SP4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.3.1-7.oe2203sp4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "acl-2.3.1-7.oe2403sp1.aarch64.rpm",
          "acl-debuginfo-2.3.1-7.oe2403sp1.aarch64.rpm",
          "acl-debugsource-2.3.1-7.oe2403sp1.aarch64.rpm",
          "libacl-2.3.1-7.oe2403sp1.aarch64.rpm",
          "libacl-devel-2.3.1-7.oe2403sp1.aarch64.rpm"
        ],
        "noarch": [
          "acl-help-2.3.1-7.oe2403sp1.noarch.rpm"
        ],
        "src": [
          "acl-2.3.1-7.oe2403sp1.src.rpm"
        ],
        "x86_64": [
          "acl-2.3.1-7.oe2403sp1.x86_64.rpm",
          "acl-debuginfo-2.3.1-7.oe2403sp1.x86_64.rpm",
          "acl-debugsource-2.3.1-7.oe2403sp1.x86_64.rpm",
          "libacl-2.3.1-7.oe2403sp1.x86_64.rpm",
          "libacl-devel-2.3.1-7.oe2403sp1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP1",
        "name": "acl",
        "purl": "pkg:rpm/openEuler/acl\u0026distro=openEuler-24.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.3.1-7.oe2403sp1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "acl-2.3.1-7.oe2403sp3.aarch64.rpm",
          "acl-debuginfo-2.3.1-7.oe2403sp3.aarch64.rpm",
          "acl-debugsource-2.3.1-7.oe2403sp3.aarch64.rpm",
          "libacl-2.3.1-7.oe2403sp3.aarch64.rpm",
          "libacl-devel-2.3.1-7.oe2403sp3.aarch64.rpm"
        ],
        "noarch": [
          "acl-help-2.3.1-7.oe2403sp3.noarch.rpm"
        ],
        "src": [
          "acl-2.3.1-7.oe2403sp3.src.rpm"
        ],
        "x86_64": [
          "acl-2.3.1-7.oe2403sp3.x86_64.rpm",
          "acl-debuginfo-2.3.1-7.oe2403sp3.x86_64.rpm",
          "acl-debugsource-2.3.1-7.oe2403sp3.x86_64.rpm",
          "libacl-2.3.1-7.oe2403sp3.x86_64.rpm",
          "libacl-devel-2.3.1-7.oe2403sp3.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP3",
        "name": "acl",
        "purl": "pkg:rpm/openEuler/acl\u0026distro=openEuler-24.03-LTS-SP3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.3.1-7.oe2403sp3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "acl-2.3.1-7.oe2403sp4.aarch64.rpm",
          "acl-debuginfo-2.3.1-7.oe2403sp4.aarch64.rpm",
          "acl-debugsource-2.3.1-7.oe2403sp4.aarch64.rpm",
          "libacl-2.3.1-7.oe2403sp4.aarch64.rpm",
          "libacl-devel-2.3.1-7.oe2403sp4.aarch64.rpm"
        ],
        "noarch": [
          "acl-help-2.3.1-7.oe2403sp4.noarch.rpm"
        ],
        "src": [
          "acl-2.3.1-7.oe2403sp4.src.rpm"
        ],
        "x86_64": [
          "acl-2.3.1-7.oe2403sp4.x86_64.rpm",
          "acl-debuginfo-2.3.1-7.oe2403sp4.x86_64.rpm",
          "acl-debugsource-2.3.1-7.oe2403sp4.x86_64.rpm",
          "libacl-2.3.1-7.oe2403sp4.x86_64.rpm",
          "libacl-devel-2.3.1-7.oe2403sp4.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP4",
        "name": "acl",
        "purl": "pkg:rpm/openEuler/acl\u0026distro=openEuler-24.03-LTS-SP4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.3.1-7.oe2403sp4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "This package contains commands for manipulating POSIX access control lists, and the libacl.so dynamic library which contains the POSIX 1003.1e draft standard 17 functions for manipulating access control lists.\r\n\r\nSecurity Fix(es):\n\nacl before version 2.4.0 contains a symlink traversal vulnerability in the libacl pathname-based functions acl_get_file(), acl_set_file(), acl_extended_file(), and acl_delete_def_file() that allows local attackers to escalate privileges by replacing any pathname component with a symbolic link. Attackers who control any component of a pathname processed by a privileged caller can redirect ACL read or write operations to arbitrary files or directories, enabling unauthorized manipulation of access control lists and local privilege escalation.(CVE-2026-54369)\n\nacl before version 2.4.0 contains a time-of-check to time-of-use (TOCTOU) race condition vulnerability that allows local attackers to escalate privileges by replacing a pathname component with a symbolic link between an lstat() check and subsequent symlink-following operations such as stat(), chown(), chmod(), acl_get_file(), and acl_set_file(). Attackers who control a pathname component can redirect file access control list operations to arbitrary files when getfacl, setfacl, or chacl is invoked by a privileged process over an attacker-controlled path, resulting in local privilege escalation.(CVE-2026-54370)",
  "id": "OESA-2026-3079",
  "modified": "2026-08-06T11:11:58Z",
  "published": "2026-07-19T11:11:58Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3079"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-54369"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-54370"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "acl security update",
  "upstream": [
    "CVE-2026-54369",
    "CVE-2026-54370"
  ]
}



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