Vulnerability-Lookup

GHSA-5R9G-XR89-8V73

Vulnerability from github – Published: 2026-06-24 18:32 – Updated: 2026-06-24 18:32

Details

In the Linux kernel, the following vulnerability has been resolved:

netfilter: xtables: restrict several matches to inet family

This is a partial revert of:

commit ab4f21e6fb1c ("netfilter: xtables: use NFPROTO_UNSPEC in more extensions")

to allow ipv4 and ipv6 only.

xt_mac
xt_owner
xt_physdev

These extensions are not used by ebtables in userspace.

Moreover, xt_realm is only for ipv4, since dst->tclassid is ipv4 specific.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-53001"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-24T17:17:11Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: xtables: restrict several matches to inet family\n\nThis is a partial revert of:\n\n  commit ab4f21e6fb1c (\"netfilter: xtables: use NFPROTO_UNSPEC in more extensions\")\n\nto allow ipv4 and ipv6 only.\n\n- xt_mac\n- xt_owner\n- xt_physdev\n\nThese extensions are not used by ebtables in userspace.\n\nMoreover, xt_realm is only for ipv4, since dst-\u003etclassid is ipv4\nspecific.",
  "id": "GHSA-5r9g-xr89-8v73",
  "modified": "2026-06-24T18:32:43Z",
  "published": "2026-06-24T18:32:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53001"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/14203f9edf944b3fb63faadd62f38452421ecdfc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/689a91ff18d6448d94c1ab7c076fecdb2b668bef"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/76160e04440c9698b989dbd9492a7ec4f520c9ee"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7eaf9c740f33230cb224dc265f3c69f8531ff57b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9a109751b297b0f2135495749ef5a18ba31ec7d4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b6fe26f86a1649f84e057f3f15605b08eda15497"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cbeb259f31382de70a70a59ffd0e66f5e80d9818"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fa88161ef56e29bdaa05cc89dbc4ee221e94bfe9"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-53001 (GCVE-0-2026-53001)

Vulnerability from cvelistv5 – Published: 2026-06-24 16:29 – Updated: 2026-06-24 16:29

Title

netfilter: xtables: restrict several matches to inet family

Summary

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: restrict several matches to inet family This is a partial revert of: commit ab4f21e6fb1c ("netfilter: xtables: use NFPROTO_UNSPEC in more extensions") to allow ipv4 and ipv6 only. - xt_mac - xt_owner - xt_physdev These extensions are not used by ebtables in userspace. Moreover, xt_realm is only for ipv4, since dst->tclassid is ipv4 specific.

Severity

No CVSS data available.

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/14203f9edf944b3fb…
https://git.kernel.org/stable/c/7eaf9c740f33230cb…
https://git.kernel.org/stable/c/9a109751b297b0f21…
https://git.kernel.org/stable/c/cbeb259f31382de70…
https://git.kernel.org/stable/c/689a91ff18d6448d9…
https://git.kernel.org/stable/c/76160e04440c9698b…
https://git.kernel.org/stable/c/fa88161ef56e29bda…
https://git.kernel.org/stable/c/b6fe26f86a1649f84…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: ab4f21e6fb1c09b13c4c3cb8357babe8223471bd , < 14203f9edf944b3fb63faadd62f38452421ecdfc (git) Affected: ab4f21e6fb1c09b13c4c3cb8357babe8223471bd , < 7eaf9c740f33230cb224dc265f3c69f8531ff57b (git) Affected: ab4f21e6fb1c09b13c4c3cb8357babe8223471bd , < 9a109751b297b0f2135495749ef5a18ba31ec7d4 (git) Affected: ab4f21e6fb1c09b13c4c3cb8357babe8223471bd , < cbeb259f31382de70a70a59ffd0e66f5e80d9818 (git) Affected: ab4f21e6fb1c09b13c4c3cb8357babe8223471bd , < 689a91ff18d6448d94c1ab7c076fecdb2b668bef (git) Affected: ab4f21e6fb1c09b13c4c3cb8357babe8223471bd , < 76160e04440c9698b989dbd9492a7ec4f520c9ee (git) Affected: ab4f21e6fb1c09b13c4c3cb8357babe8223471bd , < fa88161ef56e29bdaa05cc89dbc4ee221e94bfe9 (git) Affected: ab4f21e6fb1c09b13c4c3cb8357babe8223471bd , < b6fe26f86a1649f84e057f3f15605b08eda15497 (git)
Linux	Linux	Affected: 2.6.28 Unaffected: 0 , < 2.6.28 (semver) Unaffected: 5.10.258 , ≤ 5.10.* (semver) Unaffected: 5.15.209 , ≤ 5.15.* (semver) Unaffected: 6.1.175 , ≤ 6.1.* (semver) Unaffected: 6.6.141 , ≤ 6.6.* (semver) Unaffected: 6.12.91 , ≤ 6.12.* (semver) Unaffected: 6.18.33 , ≤ 6.18.* (semver) Unaffected: 7.0.10 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

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JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/netfilter/xt_mac.c",
            "net/netfilter/xt_owner.c",
            "net/netfilter/xt_physdev.c",
            "net/netfilter/xt_realm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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            },
            {
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              "status": "affected",
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            "net/netfilter/xt_realm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.28"
            },
            {
              "lessThan": "2.6.28",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.258",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.209",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.175",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.141",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.91",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.33",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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          "nodes": [
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      ],
      "providerMetadata": {
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        "shortName": "Linux"
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        },
        {
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        },
        {
          "url": "https://git.kernel.org/stable/c/b6fe26f86a1649f84e057f3f15605b08eda15497"
        }
      ],
      "title": "netfilter: xtables: restrict several matches to inet family",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
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  "cveMetadata": {
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    "cveId": "CVE-2026-53001",
    "datePublished": "2026-06-24T16:29:13.513Z",
    "dateReserved": "2026-06-09T07:44:35.377Z",
    "dateUpdated": "2026-06-24T16:29:13.513Z",
    "state": "PUBLISHED"
  },
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-5R9G-XR89-8V73

CVE-2026-53001 (GCVE-0-2026-53001)

Tags

Sightings

Nomenclature