{"api_version":"1","generated_at":"2026-05-13T00:20:56+00:00","cve":"CVE-2026-43193","urls":{"html":"https://cve.report/CVE-2026-43193","api":"https://cve.report/api/cve/CVE-2026-43193.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-43193","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-43193"},"summary":{"title":"nfsd: fix nfs4_file refcount leak in nfsd_get_dir_deleg()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: fix nfs4_file refcount leak in nfsd_get_dir_deleg()\n\nClaude pointed out that there is a nfs4_file refcount leak in\nnfsd_get_dir_deleg(). Ensure that the reference to \"fp\" is released\nbefore returning.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-06 12:16:38","updated_at":"2026-05-11 20:36:27"},"problem_types":["NVD-CWE-Other"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"5.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}}],"references":[{"url":"https://git.kernel.org/stable/c/0d8362e15aad5b5c1d6a65bb23ac6c45ccf881f3","name":"https://git.kernel.org/stable/c/0d8362e15aad5b5c1d6a65bb23ac6c45ccf881f3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/789477b849394afdb60507924d65f7ef18f078ce","name":"https://git.kernel.org/stable/c/789477b849394afdb60507924d65f7ef18f078ce","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-43193","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43193","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8b99f6a8c116f664a6788737705f6da2772cc96a 0d8362e15aad5b5c1d6a65bb23ac6c45ccf881f3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8b99f6a8c116f664a6788737705f6da2772cc96a 789477b849394afdb60507924d65f7ef18f078ce git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.19","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19.6 6.19.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2026","cve_id":"43193","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linux","cpe5":"linux_kernel","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"43193","cve":"CVE-2026-43193","epss":"0.000140000","percentile":"0.029270000","score_date":"2026-05-12","updated_at":"2026-05-13 00:11:53"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/nfsd/nfs4state.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"0d8362e15aad5b5c1d6a65bb23ac6c45ccf881f3","status":"affected","version":"8b99f6a8c116f664a6788737705f6da2772cc96a","versionType":"git"},{"lessThan":"789477b849394afdb60507924d65f7ef18f078ce","status":"affected","version":"8b99f6a8c116f664a6788737705f6da2772cc96a","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["fs/nfsd/nfs4state.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.19"},{"lessThan":"6.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.6","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":"6.19.6","versionStartIncluding":"6.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0","versionStartIncluding":"6.19","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: fix nfs4_file refcount leak in nfsd_get_dir_deleg()\n\nClaude pointed out that there is a nfs4_file refcount leak in\nnfsd_get_dir_deleg(). Ensure that the reference to \"fp\" is released\nbefore returning."}],"providerMetadata":{"dateUpdated":"2026-05-06T11:28:01.926Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/0d8362e15aad5b5c1d6a65bb23ac6c45ccf881f3"},{"url":"https://git.kernel.org/stable/c/789477b849394afdb60507924d65f7ef18f078ce"}],"title":"nfsd: fix nfs4_file refcount leak in nfsd_get_dir_deleg()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-43193","datePublished":"2026-05-06T11:28:01.926Z","dateReserved":"2026-05-01T14:12:55.992Z","dateUpdated":"2026-05-06T11:28:01.926Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-06 12:16:38","lastModifiedDate":"2026-05-11 20:36:27","problem_types":["NVD-CWE-Other"],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"6.19.6","matchCriteriaId":"373EEEDA-FAA1-4FB4-B6ED-DB4DD99DBE67"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"43193","Ordinal":"1","Title":"nfsd: fix nfs4_file refcount leak in nfsd_get_dir_deleg()","CVE":"CVE-2026-43193","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"43193","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: fix nfs4_file refcount leak in nfsd_get_dir_deleg()\n\nClaude pointed out that there is a nfs4_file refcount leak in\nnfsd_get_dir_deleg(). Ensure that the reference to \"fp\" is released\nbefore returning.","Type":"Description","Title":"nfsd: fix nfs4_file refcount leak in nfsd_get_dir_deleg()"}]}}}