CVE catalog

CVE-2026-52791

fuse-overlayfs is an implementation of overlayfs in…

fuse-overlayfs is an implementation of overlayfs in FUSE for rootless containers. Prior to 1.17, the release-1.x C branch preserves SUID and SGID mode bits in main.c during open(O_TRUNC) and truncate handling on a copied-up file, allowing a low-privileged process to leave the upper-layer file with mode 4777. This issue is fixed in version 1.17.

Severity: Medium · CVSS 4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
Published: Jul 29, 2026, 4:14:46 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.14% · Oct 27, 2026

Projects and upstream resources

[fuse-overlayfs][Source-reported homepage]

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Version impact has not been established. The original provider fields are retained below.

Provider details and historical evidence

Original provider fields

{
  "package_releases": [
    {
      "name": "fuse-overlayfs",
      "status": "vulnerable",
      "release": "sid",
      "version": "1.14-1"
    },
    {
      "name": "fuse-overlayfs",
      "status": "vulnerable",
      "release": "forky",
      "version": "1.14-1"
    },
    {
      "name": "fuse-overlayfs",
      "status": "vulnerable",
      "release": "trixie",
      "version": "1.14-1"
    },
    {
      "name": "fuse-overlayfs",
      "status": "vulnerable",
      "release": "bookworm",
      "version": "1.10-1"
    }
  ],
  "fixed_versions": [
    {
      "bug": 1143058,
      "name": "fuse-overlayfs",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "not yet assigned",
      "fixed_version": ""
    },
    {
      "bug": 1143058,
      "name": "fuse-overlayfs",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "not yet assigned",
      "fixed_version": ""
    },
    {
      "bug": 1143058,
      "name": "fuse-overlayfs",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "not yet assigned",
      "fixed_version": ""
    },
    {
      "bug": 1143058,
      "name": "fuse-overlayfs",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "not yet assigned",
      "fixed_version": ""
    }
  ],
  "distribution_packages": [
    {
      "name": "fuse-overlayfs",
      "distro": "suse",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.15-160000.3.1"
            }
          ]
        }
      ],
      "release": "linux enterprise server 16.0",
      "versions": [],
      "ecosystem": "rpm",
      "fixed_version": "1.15-160000.3.1",
      "provider_record_id": "SUSE-SU-2026:23618-1"
    },
    {
      "name": "fuse-overlayfs",
      "distro": "suse",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.15-160000.3.1"
            }
          ]
        }
      ],
      "release": "linux enterprise server for sap applications 16.0",
      "versions": [],
      "ecosystem": "rpm",
      "fixed_version": "1.15-160000.3.1",
      "provider_record_id": "SUSE-SU-2026:23618-1"
    },
    {
      "name": "fuse-overlayfs",
      "distro": "suse",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.15-160000.3.1"
            }
          ]
        }
      ],
      "release": "linux micro 6.2",
      "versions": [],
      "ecosystem": "rpm",
      "fixed_version": "1.15-160000.3.1",
      "provider_record_id": "SUSE-SU-2026:23469-1"
    },
    {
      "name": "fuse-overlayfs",
      "distro": "suse",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.1.2-150100.3.14.1"
            }
          ]
        }
      ],
      "release": "linux enterprise micro 5.3",
      "versions": [],
      "ecosystem": "rpm",
      "fixed_version": "1.1.2-150100.3.14.1",
      "provider_record_id": "SUSE-SU-2026:4026-1"
    },
    {
      "name": "fuse-overlayfs",
      "distro": "suse",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.1.2-150100.3.14.1"
            }
          ]
        }
      ],
      "release": "linux enterprise micro 5.4",
      "versions": [],
      "ecosystem": "rpm",
      "fixed_version": "1.1.2-150100.3.14.1",
      "provider_record_id": "SUSE-SU-2026:4026-1"
    },
    {
      "name": "fuse-overlayfs",
      "distro": "suse",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.1.2-150100.3.14.1"
            }
          ]
        }
      ],
      "release": "linux enterprise micro 5.5",
      "versions": [],
      "ecosystem": "rpm",
      "fixed_version": "1.1.2-150100.3.14.1",
      "provider_record_id": "SUSE-SU-2026:4026-1"
    },
    {
      "name": "fuse-overlayfs",
      "distro": "suse",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.1.2-150100.3.14.1"
            }
          ]
        }
      ],
      "release": "linux enterprise module for containers 15 sp7",
      "versions": [],
      "ecosystem": "rpm",
      "fixed_version": "1.1.2-150100.3.14.1",
      "provider_record_id": "SUSE-SU-2026:4026-1"
    },
    {
      "name": "fuse-overlayfs",
      "distro": "suse",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.1.2-150100.3.14.1"
            }
          ]
        }
      ],
      "release": "enterprise storage 7.1",
      "versions": [],
      "ecosystem": "rpm",
      "fixed_version": "1.1.2-150100.3.14.1",
      "provider_record_id": "SUSE-SU-2026:4026-1"
    },
    {
      "name": "fuse-overlayfs",
      "distro": "opensuse",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.15-160000.3.1"
            }
          ]
        }
      ],
      "release": "leap 16.0",
      "versions": [],
      "ecosystem": "rpm",
      "fixed_version": "1.15-160000.3.1",
      "provider_record_id": "OPENSUSE-SU-2026:21753-1"
    },
    {
      "name": "fuse-overlayfs",
      "distro": "suse",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.12-2.1"
            }
          ]
        }
      ],
      "release": "linux micro 6.0",
      "versions": [],
      "ecosystem": "rpm",
      "fixed_version": "1.12-2.1",
      "provider_record_id": "SUSE-SU-2026:23252-1"
    },
    {
      "name": "fuse-overlayfs",
      "distro": "opensuse",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.17-1.1"
            }
          ]
        }
      ],
      "release": "tumbleweed",
      "versions": [],
      "ecosystem": "rpm",
      "fixed_version": "1.17-1.1",
      "provider_record_id": "OPENSUSE-SU-2026:11461-1"
    }
  ]
}

[Debian bug #1143058]

Publisher notes

[trixie] fuse-overlayfs: Minor issue [bookworm] fuse-overlayfs: Minor issue

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[fuse-overlayfs]Unknown
Details (2)
- 1.10-1 · amd64 · bookworm
  Affected
  nvd · fuse-overlayfs · debian · bookworm; nvd · fuse-overlayfs · debian · 12
- 1.10-1 · arm64 · bookworm
  Affected
  nvd · fuse-overlayfs · debian · bookworm; nvd · fuse-overlayfs · debian · 12

[Debian 13 (Trixie)]

[fuse-overlayfs]Unknown
Source package: [fuse-overlayfs]
Details (2)
- 1.14-1+b1 · amd64 · trixie
  Affected
  nvd · fuse-overlayfs · debian · 13
- 1.14-1+b1 · arm64 · trixie
  Affected
  nvd · fuse-overlayfs · debian · 13

[openSUSE Tumbleweed]

[fuse-overlayfs]Unknown
Source package: [fuse-overlayfs]
Details (1)
- 1.17-1.1 · x86_64 · tumbleweed
  Fixed · Fixed: 1.17-1.1
  nvd · fuse-overlayfs · opensuse · tumbleweed

Observed: Oct 23, 2026, 9:43:10 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]