{"api_version":"1","generated_at":"2026-06-03T19:46:41+00:00","cve":"CVE-2026-46003","urls":{"html":"https://cve.report/CVE-2026-46003","api":"https://cve.report/api/cve/CVE-2026-46003.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-46003","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-46003"},"summary":{"title":"net: qrtr: ns: Limit the total number of nodes","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: qrtr: ns: Limit the total number of nodes\n\nCurrently, the nameserver doesn't limit the number of nodes it handles.\nThis can be an attack vector if a malicious client starts registering\nrandom nodes, leading to memory exhaustion.\n\nHence, limit the maximum number of nodes to 64. Note that, limit of 64 is\nchosen based on the current platform requirements. If requirement changes\nin the future, this limit can be increased.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-27 14:17:18","updated_at":"2026-05-27 14:48:03"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/27d5e84e810b0849d08b9aec68e48570461ce313","name":"https://git.kernel.org/stable/c/27d5e84e810b0849d08b9aec68e48570461ce313","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4c46413661431aa60fb134cd4ecdf8beaa39f824","name":"https://git.kernel.org/stable/c/4c46413661431aa60fb134cd4ecdf8beaa39f824","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8022876894d09ae485b499058c3357da683bcc5d","name":"https://git.kernel.org/stable/c/8022876894d09ae485b499058c3357da683bcc5d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/5cf6d5e5e3b804a44692fbf548a5179442e2e923","name":"https://git.kernel.org/stable/c/5cf6d5e5e3b804a44692fbf548a5179442e2e923","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4665a29c08e1b36bc9db4814f9dde3d23e8fd1b0","name":"https://git.kernel.org/stable/c/4665a29c08e1b36bc9db4814f9dde3d23e8fd1b0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-46003","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46003","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 0c2204a4ad710d95d348ea006f14ba926e842ffd 4c46413661431aa60fb134cd4ecdf8beaa39f824 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 0c2204a4ad710d95d348ea006f14ba926e842ffd 4665a29c08e1b36bc9db4814f9dde3d23e8fd1b0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 0c2204a4ad710d95d348ea006f14ba926e842ffd 5cf6d5e5e3b804a44692fbf548a5179442e2e923 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 0c2204a4ad710d95d348ea006f14ba926e842ffd 8022876894d09ae485b499058c3357da683bcc5d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 0c2204a4ad710d95d348ea006f14ba926e842ffd 27d5e84e810b0849d08b9aec68e48570461ce313 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.7","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.7 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.140 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.86 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.27 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.4 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"46003","cve":"CVE-2026-46003","epss":"0.000180000","percentile":"0.050770000","score_date":"2026-06-01","updated_at":"2026-06-02 00:05:21"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/qrtr/ns.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"4c46413661431aa60fb134cd4ecdf8beaa39f824","status":"affected","version":"0c2204a4ad710d95d348ea006f14ba926e842ffd","versionType":"git"},{"lessThan":"4665a29c08e1b36bc9db4814f9dde3d23e8fd1b0","status":"affected","version":"0c2204a4ad710d95d348ea006f14ba926e842ffd","versionType":"git"},{"lessThan":"5cf6d5e5e3b804a44692fbf548a5179442e2e923","status":"affected","version":"0c2204a4ad710d95d348ea006f14ba926e842ffd","versionType":"git"},{"lessThan":"8022876894d09ae485b499058c3357da683bcc5d","status":"affected","version":"0c2204a4ad710d95d348ea006f14ba926e842ffd","versionType":"git"},{"lessThan":"27d5e84e810b0849d08b9aec68e48570461ce313","status":"affected","version":"0c2204a4ad710d95d348ea006f14ba926e842ffd","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/qrtr/ns.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.7"},{"lessThan":"5.7","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.140","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.86","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.27","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.140","versionStartIncluding":"5.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.86","versionStartIncluding":"5.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.27","versionStartIncluding":"5.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.4","versionStartIncluding":"5.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1-rc1","versionStartIncluding":"5.7","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: qrtr: ns: Limit the total number of nodes\n\nCurrently, the nameserver doesn't limit the number of nodes it handles.\nThis can be an attack vector if a malicious client starts registering\nrandom nodes, leading to memory exhaustion.\n\nHence, limit the maximum number of nodes to 64. Note that, limit of 64 is\nchosen based on the current platform requirements. If requirement changes\nin the future, this limit can be increased."}],"providerMetadata":{"dateUpdated":"2026-05-27T12:55:59.509Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/4c46413661431aa60fb134cd4ecdf8beaa39f824"},{"url":"https://git.kernel.org/stable/c/4665a29c08e1b36bc9db4814f9dde3d23e8fd1b0"},{"url":"https://git.kernel.org/stable/c/5cf6d5e5e3b804a44692fbf548a5179442e2e923"},{"url":"https://git.kernel.org/stable/c/8022876894d09ae485b499058c3357da683bcc5d"},{"url":"https://git.kernel.org/stable/c/27d5e84e810b0849d08b9aec68e48570461ce313"}],"title":"net: qrtr: ns: Limit the total number of nodes","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-46003","datePublished":"2026-05-27T12:55:59.509Z","dateReserved":"2026-05-13T15:03:33.091Z","dateUpdated":"2026-05-27T12:55:59.509Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-27 14:17:18","lastModifiedDate":"2026-05-27 14:48:03","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"46003","Ordinal":"1","Title":"net: qrtr: ns: Limit the total number of nodes","CVE":"CVE-2026-46003","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"46003","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: qrtr: ns: Limit the total number of nodes\n\nCurrently, the nameserver doesn't limit the number of nodes it handles.\nThis can be an attack vector if a malicious client starts registering\nrandom nodes, leading to memory exhaustion.\n\nHence, limit the maximum number of nodes to 64. Note that, limit of 64 is\nchosen based on the current platform requirements. If requirement changes\nin the future, this limit can be increased.","Type":"Description","Title":"net: qrtr: ns: Limit the total number of nodes"}]}}}