CVE-2026-43060 (GCVE-0-2026-43060)

Vulnerability from cvelistv5 – Published: 2026-05-05 15:17 – Updated: 2026-05-08 12:40
VLAI?
Title
netfilter: nft_ct: drop pending enqueued packets on removal
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_ct: drop pending enqueued packets on removal Packets sitting in nfqueue might hold a reference to: - templates that specify the conntrack zone, because a percpu area is used and module removal is possible. - conntrack timeout policies and helper, where object removal leave a stale reference. Since these objects can just go away, drop enqueued packets to avoid stale reference to them. If there is a need for finer grain removal, this logic can be revisited to make selective packet drop upon dependencies.
Assigner
Impacted products
Vendor Product Version
Linux Linux Affected: 7e0b2b57f01d183e1c84114f1f2287737358d748 , < 8a64e76933672b08bd85b63086f33432070fd729 (git)
Affected: 7e0b2b57f01d183e1c84114f1f2287737358d748 , < 3da0b946835f33bf36b459ead764c61a761e689b (git)
Affected: 7e0b2b57f01d183e1c84114f1f2287737358d748 , < ab50302190b303f847c4eba0e31a01a56dec596e (git)
Affected: 7e0b2b57f01d183e1c84114f1f2287737358d748 , < e68a8db3a0546482b34e9ca5ca886bcf73eb37bb (git)
Affected: 7e0b2b57f01d183e1c84114f1f2287737358d748 , < 6802ff8beceb9c4254318e81c1395720438f2cc2 (git)
Affected: 7e0b2b57f01d183e1c84114f1f2287737358d748 , < f29a055e4f593e577805b41228b142b58f48df1b (git)
Affected: 7e0b2b57f01d183e1c84114f1f2287737358d748 , < 77da55dee67720e2b8d2db49a53334e6c017ee7b (git)
Affected: 7e0b2b57f01d183e1c84114f1f2287737358d748 , < 36eae0956f659e48d5366d9b083d9417f3263ddc (git)
Create a notification for this product.
    Linux Linux Affected: 4.19
Unaffected: 0 , < 4.19 (semver)
Unaffected: 5.10.253 , ≤ 5.10.* (semver)
Unaffected: 5.15.203 , ≤ 5.15.* (semver)
Unaffected: 6.1.167 , ≤ 6.1.* (semver)
Unaffected: 6.6.130 , ≤ 6.6.* (semver)
Unaffected: 6.12.78 , ≤ 6.12.* (semver)
Unaffected: 6.18.20 , ≤ 6.18.* (semver)
Unaffected: 6.19.10 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/netfilter/nft_ct.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "8a64e76933672b08bd85b63086f33432070fd729",
              "status": "affected",
              "version": "7e0b2b57f01d183e1c84114f1f2287737358d748",
              "versionType": "git"
            },
            {
              "lessThan": "3da0b946835f33bf36b459ead764c61a761e689b",
              "status": "affected",
              "version": "7e0b2b57f01d183e1c84114f1f2287737358d748",
              "versionType": "git"
            },
            {
              "lessThan": "ab50302190b303f847c4eba0e31a01a56dec596e",
              "status": "affected",
              "version": "7e0b2b57f01d183e1c84114f1f2287737358d748",
              "versionType": "git"
            },
            {
              "lessThan": "e68a8db3a0546482b34e9ca5ca886bcf73eb37bb",
              "status": "affected",
              "version": "7e0b2b57f01d183e1c84114f1f2287737358d748",
              "versionType": "git"
            },
            {
              "lessThan": "6802ff8beceb9c4254318e81c1395720438f2cc2",
              "status": "affected",
              "version": "7e0b2b57f01d183e1c84114f1f2287737358d748",
              "versionType": "git"
            },
            {
              "lessThan": "f29a055e4f593e577805b41228b142b58f48df1b",
              "status": "affected",
              "version": "7e0b2b57f01d183e1c84114f1f2287737358d748",
              "versionType": "git"
            },
            {
              "lessThan": "77da55dee67720e2b8d2db49a53334e6c017ee7b",
              "status": "affected",
              "version": "7e0b2b57f01d183e1c84114f1f2287737358d748",
              "versionType": "git"
            },
            {
              "lessThan": "36eae0956f659e48d5366d9b083d9417f3263ddc",
              "status": "affected",
              "version": "7e0b2b57f01d183e1c84114f1f2287737358d748",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/netfilter/nft_ct.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.19"
            },
            {
              "lessThan": "4.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.253",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.203",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.167",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.130",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.78",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.20",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.253",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.203",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.167",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.130",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.78",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.20",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.10",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nft_ct: drop pending enqueued packets on removal\n\nPackets sitting in nfqueue might hold a reference to:\n\n- templates that specify the conntrack zone, because a percpu area is\n  used and module removal is possible.\n- conntrack timeout policies and helper, where object removal leave\n  a stale reference.\n\nSince these objects can just go away, drop enqueued packets to avoid\nstale reference to them.\n\nIf there is a need for finer grain removal, this logic can be revisited\nto make selective packet drop upon dependencies."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-08T12:40:14.866Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/8a64e76933672b08bd85b63086f33432070fd729"
        },
        {
          "url": "https://git.kernel.org/stable/c/3da0b946835f33bf36b459ead764c61a761e689b"
        },
        {
          "url": "https://git.kernel.org/stable/c/ab50302190b303f847c4eba0e31a01a56dec596e"
        },
        {
          "url": "https://git.kernel.org/stable/c/e68a8db3a0546482b34e9ca5ca886bcf73eb37bb"
        },
        {
          "url": "https://git.kernel.org/stable/c/6802ff8beceb9c4254318e81c1395720438f2cc2"
        },
        {
          "url": "https://git.kernel.org/stable/c/f29a055e4f593e577805b41228b142b58f48df1b"
        },
        {
          "url": "https://git.kernel.org/stable/c/77da55dee67720e2b8d2db49a53334e6c017ee7b"
        },
        {
          "url": "https://git.kernel.org/stable/c/36eae0956f659e48d5366d9b083d9417f3263ddc"
        }
      ],
      "title": "netfilter: nft_ct: drop pending enqueued packets on removal",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-43060",
    "datePublished": "2026-05-05T15:17:26.393Z",
    "dateReserved": "2026-05-01T14:12:55.981Z",
    "dateUpdated": "2026-05-08T12:40:14.866Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-43060",
      "date": "2026-05-08",
      "epss": "0.00024",
      "percentile": "0.06984"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-43060\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-05-05T16:16:15.050\",\"lastModified\":\"2026-05-08T13:16:37.143\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnetfilter: nft_ct: drop pending enqueued packets on removal\\n\\nPackets sitting in nfqueue might hold a reference to:\\n\\n- templates that specify the conntrack zone, because a percpu area is\\n  used and module removal is possible.\\n- conntrack timeout policies and helper, where object removal leave\\n  a stale reference.\\n\\nSince these objects can just go away, drop enqueued packets to avoid\\nstale reference to them.\\n\\nIf there is a need for finer grain removal, this logic can be revisited\\nto make selective packet drop upon dependencies.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/36eae0956f659e48d5366d9b083d9417f3263ddc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/3da0b946835f33bf36b459ead764c61a761e689b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6802ff8beceb9c4254318e81c1395720438f2cc2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/77da55dee67720e2b8d2db49a53334e6c017ee7b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8a64e76933672b08bd85b63086f33432070fd729\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ab50302190b303f847c4eba0e31a01a56dec596e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e68a8db3a0546482b34e9ca5ca886bcf73eb37bb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f29a055e4f593e577805b41228b142b58f48df1b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…