CVE-2026-46024

{"id": "CVE-2026-46024", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc", "lessThan": "9ded62c302c0342efdb5eda3bf6e75720caad0df", "versionType": "git"}, {"status": "affected", "version": "4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc", "lessThan": "f101271fcf55d7eacfefd610b51ec65f46ba8118", "versionType": "git"}, {"status": "affected", "version": "4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc", "lessThan": "4b2738b93edad661178340239de657d876b73d3d", "versionType": "git"}, {"status": "affected", "version": "4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc", "lessThan": "927e4bd5692f2a4901808822981fb2c8d4456548", "versionType": "git"}, {"status": "affected", "version": "4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc", "lessThan": "016bc663657366d386993f63eb31072eb45a2b77", "versionType": "git"}, {"status": "affected", "version": "4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc", "lessThan": "8f2be7285941a33a9f72579a23b96392f83c758e", "versionType": "git"}, {"status": "affected", "version": "4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc", "lessThan": "5199c125d25aeae8615c4fc31652cc0fe624338e", "versionType": "git"}], "programFiles": ["net/ceph/auth.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "2.6.34"}, {"status": "unaffected", "version": "0", "lessThan": "2.6.34", "versionType": "semver"}, {"status": "unaffected", "version": "5.15.209", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.175", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.140", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.86", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.27", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.0.4", "versionType": "semver", "lessThanOrEqual": "7.0.*"}, {"status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["net/ceph/auth.c"], "defaultStatus": "affected"}]}], "published": "2026-05-27T14:17:20.890", "references": [{"url": "https://git.kernel.org/stable/c/016bc663657366d386993f63eb31072eb45a2b77", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/4b2738b93edad661178340239de657d876b73d3d", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/5199c125d25aeae8615c4fc31652cc0fe624338e", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8f2be7285941a33a9f72579a23b96392f83c758e", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/927e4bd5692f2a4901808822981fb2c8d4456548", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/9ded62c302c0342efdb5eda3bf6e75720caad0df", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f101271fcf55d7eacfefd610b51ec65f46ba8118", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-476"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nlibceph: Prevent potential null-ptr-deref in ceph_handle_auth_reply()\n\nIf a message of type CEPH_MSG_AUTH_REPLY contains a zero value for both\nprotocol and result, this is currently not treated as an error. In case\nof ac->negotiating == true and ac->protocol > 0, this leads to setting\nac->protocol = 0 and ac->ops = NULL. Thereafter, the check for\nac->protocol != protocol returns false, and init_protocol() is not\ncalled. Subsequently, ac->ops->handle_reply() is called, which leads to\na null pointer dereference, because ac->ops is still NULL.\n\nThis patch changes the check for ac->protocol != protocol to\n!ac->protocol, as this also includes the case when the protocol was set\nto zero in the message. This causes the message to be treated as\ncontaining a bad auth protocol."}], "lastModified": "2026-06-17T10:52:55.147", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "66FEB83E-2D81-4BA1-B8BE-C61B1BC97290", "versionEndExcluding": "5.15.209", "versionStartIncluding": "2.6.34.1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "92385813-D91D-480D-83A1-F423D2CBB2BA", "versionEndExcluding": "6.1.175", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A1A92866-F406-43B5-B2D1-CFC274753E9D", "versionEndExcluding": "6.6.140", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "55DA1C62-9991-451E-B8A8-E0004E00F789", "versionEndExcluding": "6.12.86", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A10AC84F-C058-47D5-85B4-E6E51A613B74", "versionEndExcluding": "6.18.27", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CDB78D6D-22C3-4154-B0D0-94AF1CE5C2E3", "versionEndExcluding": "7.0.4", "versionStartIncluding": "6.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:2.6.34:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A3B1BC1D-ED46-4364-A1D9-1FA74182B03A"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:2.6.34:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "86D3F64C-3F27-43E0-B0D4-62CE1E1F4EFB"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:2.6.34:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7927713B-5EB0-41EB-86A9-9935775162E0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:2.6.34:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "59037296-3143-4FBB-AFF7-D4FE2C85502F"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:2.6.34:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9CA27FD5-7DBF-4C85-80A9-D523B2E4B033"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:2.6.34:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9711E333-A8E7-4F4B-BCFD-2023E889651A"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:2.6.34:rc7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E04D3358-973B-42A1-8E08-2E3AE947193C"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}