{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-52920", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.367Z", "datePublished": "2026-06-24T07:14:15.866Z", "dateUpdated": "2026-06-28T06:36:42.252Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-28T06:36:42.252Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: xt_policy: fix strict mode inbound policy matching\n\nmatch_policy_in() walks sec_path entries from the last transform to the\nfirst one, but strict policy matching needs to consume info->pol[] in\nthe same forward order as the rule layout.\n\nDerive the strict-match policy position from the number of transforms\nalready consumed so that multi-element inbound rules are matched\nconsistently."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H", "baseScore": 8.3, "baseSeverity": "HIGH"}}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/netfilter/xt_policy.c"], "versions": [{"version": "c4b885139203d37f76662c37ae645fe8e0f4e4e5", "lessThan": "eb323f7b82d2e2f638de0cc2a177803eb20e0707", "status": "affected", "versionType": "git"}, {"version": "c4b885139203d37f76662c37ae645fe8e0f4e4e5", "lessThan": "fc1c518bb1f054831ecabb32da9b8e1dff9699c6", "status": "affected", "versionType": "git"}, {"version": "c4b885139203d37f76662c37ae645fe8e0f4e4e5", "lessThan": "f98b7f85e04b40e28b08c461ded0cc79f14f5509", "status": "affected", "versionType": "git"}, {"version": "c4b885139203d37f76662c37ae645fe8e0f4e4e5", "lessThan": "82664d0f1ba25e4f9a71994954abae24c60f4067", "status": "affected", "versionType": "git"}, {"version": "c4b885139203d37f76662c37ae645fe8e0f4e4e5", "lessThan": "b130a6eefa02bd4d475f2f059da8bcfb3e7d18d9", "status": "affected", "versionType": "git"}, {"version": "c4b885139203d37f76662c37ae645fe8e0f4e4e5", "lessThan": "938867e870fb5471bb16f442aeac81326e05bf65", "status": "affected", "versionType": "git"}, {"version": "c4b885139203d37f76662c37ae645fe8e0f4e4e5", "lessThan": "392cc1d8408b5665215c1e9290bbf0f92339b043", "status": "affected", "versionType": "git"}, {"version": "c4b885139203d37f76662c37ae645fe8e0f4e4e5", "lessThan": "4b2b4d7d4e203c92db8966b163edfacb1f0e1e29", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/netfilter/xt_policy.c"], "versions": [{"version": "2.6.17", "status": "affected"}, {"version": "0", "lessThan": "2.6.17", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.258", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.209", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.175", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.141", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.91", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.33", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.10", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.17", "versionEndExcluding": "5.10.258"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.17", "versionEndExcluding": "5.15.209"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.17", "versionEndExcluding": "6.1.175"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.17", "versionEndExcluding": "6.6.141"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.17", "versionEndExcluding": "6.12.91"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.17", "versionEndExcluding": "6.18.33"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.17", "versionEndExcluding": "7.0.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.17", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/eb323f7b82d2e2f638de0cc2a177803eb20e0707"}, {"url": "https://git.kernel.org/stable/c/fc1c518bb1f054831ecabb32da9b8e1dff9699c6"}, {"url": "https://git.kernel.org/stable/c/f98b7f85e04b40e28b08c461ded0cc79f14f5509"}, {"url": "https://git.kernel.org/stable/c/82664d0f1ba25e4f9a71994954abae24c60f4067"}, {"url": "https://git.kernel.org/stable/c/b130a6eefa02bd4d475f2f059da8bcfb3e7d18d9"}, {"url": "https://git.kernel.org/stable/c/938867e870fb5471bb16f442aeac81326e05bf65"}, {"url": "https://git.kernel.org/stable/c/392cc1d8408b5665215c1e9290bbf0f92339b043"}, {"url": "https://git.kernel.org/stable/c/4b2b4d7d4e203c92db8966b163edfacb1f0e1e29"}], "title": "netfilter: xt_policy: fix strict mode inbound policy matching", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{}

{"bugzilla": {"description": "kernel: netfilter: xt_policy: fix strict mode inbound policy matching", "id": "2492112", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492112"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-551", "details": ["A flaw was found in the Linux kernel's netfilter component, which is responsible for network packet filtering. This vulnerability, located in the `xt_policy` module, involves an error in how strict inbound network policies are matched. This could allow an attacker to bypass established security rules, potentially leading to unauthorized network access or unintended exposure of services. The flaw could compromise the effectiveness of network traffic control."], "name": "CVE-2026-52920", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-06-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-52920\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-52920\nhttps://lore.kernel.org/linux-cve-announce/2026062430-CVE-2026-52920-22f8@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c4b885139203d37f76662c37ae645fe8e0f4e4e5,eb323f7b82d2e2f638de0cc2a177803eb20e0707)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c4b885139203d37f76662c37ae645fe8e0f4e4e5,fc1c518bb1f054831ecabb32da9b8e1dff9699c6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c4b885139203d37f76662c37ae645fe8e0f4e4e5,f98b7f85e04b40e28b08c461ded0cc79f14f5509)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c4b885139203d37f76662c37ae645fe8e0f4e4e5,82664d0f1ba25e4f9a71994954abae24c60f4067)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c4b885139203d37f76662c37ae645fe8e0f4e4e5,b130a6eefa02bd4d475f2f059da8bcfb3e7d18d9)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c4b885139203d37f76662c37ae645fe8e0f4e4e5,938867e870fb5471bb16f442aeac81326e05bf65)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c4b885139203d37f76662c37ae645fe8e0f4e4e5,392cc1d8408b5665215c1e9290bbf0f92339b043)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c4b885139203d37f76662c37ae645fe8e0f4e4e5,4b2b4d7d4e203c92db8966b163edfacb1f0e1e29)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.6.17"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,2.6.17)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.258,5.11.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.209,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.175,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.141,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.91,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.33,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.10,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-06-24T13:45:16.878235+00:00", "updated": "2026-06-28T15:15:05.995799+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}