{"api_version":"1","generated_at":"2026-07-03T13:41:15+00:00","cve":"CVE-2026-53168","urls":{"html":"https://cve.report/CVE-2026-53168","api":"https://cve.report/api/cve/CVE-2026-53168.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-53168","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53168"},"summary":{"title":"fuse: reject fuse_notify() pagecache ops on directories","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfuse: reject fuse_notify() pagecache ops on directories\n\nThe operations FUSE_NOTIFY_STORE and FUSE_NOTIFY_RETRIEVE allow the\nFUSE daemon to actively write/read pagecache contents.\n\nFor directories with FOPEN_CACHE_DIR, the pagecache is used as\nkernel-internal cache storage, and userspace is not supposed to have\ndirect access to this cache - in particular, fuse_parse_cache() will hit\nWARN_ON() if the cache contains bogus data.\n\nReject FUSE_NOTIFY_STORE and FUSE_NOTIFY_RETRIEVE on anything other than\nregular files with -EINVAL.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-06-25 09:16:34","updated_at":"2026-06-30 14:44:27"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/9dbf1b2fadfc6c40805631d8a8276d1639fc9ab6","name":"https://git.kernel.org/stable/c/9dbf1b2fadfc6c40805631d8a8276d1639fc9ab6","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e692f0cb86204dcdb9dddc0b355407eda6394a67","name":"https://git.kernel.org/stable/c/e692f0cb86204dcdb9dddc0b355407eda6394a67","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/99c317d7f8b7bbf3de16d20a01f363e390114cea","name":"https://git.kernel.org/stable/c/99c317d7f8b7bbf3de16d20a01f363e390114cea","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/15487f98863dc7156ed43c5be26d478beb82ba35","name":"https://git.kernel.org/stable/c/15487f98863dc7156ed43c5be26d478beb82ba35","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/dd92773d4d9cea010474eb08a5133c14ff6ab53a","name":"https://git.kernel.org/stable/c/dd92773d4d9cea010474eb08a5133c14ff6ab53a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/bd23fa0c16c5c86e5b7713224ffbb87d9db81cca","name":"https://git.kernel.org/stable/c/bd23fa0c16c5c86e5b7713224ffbb87d9db81cca","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9c954499d43aefac01c5dfb57a82b13d2dcf4b94","name":"https://git.kernel.org/stable/c/9c954499d43aefac01c5dfb57a82b13d2dcf4b94","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/12df4cfa738aefff21756728e91056d7defb0fe6","name":"https://git.kernel.org/stable/c/12df4cfa738aefff21756728e91056d7defb0fe6","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-53168","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53168","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5d7bc7e8680c7ca4c8a4f139ce2a54ccb8131ef0 15487f98863dc7156ed43c5be26d478beb82ba35 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5d7bc7e8680c7ca4c8a4f139ce2a54ccb8131ef0 bd23fa0c16c5c86e5b7713224ffbb87d9db81cca git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5d7bc7e8680c7ca4c8a4f139ce2a54ccb8131ef0 9dbf1b2fadfc6c40805631d8a8276d1639fc9ab6 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5d7bc7e8680c7ca4c8a4f139ce2a54ccb8131ef0 dd92773d4d9cea010474eb08a5133c14ff6ab53a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.210 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.176 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.143 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.94 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.36 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.13 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"53168","cve":"CVE-2026-53168","epss":"0.001760000","percentile":"0.073830000","score_date":"2026-07-02","updated_at":"2026-07-03 00:06:13"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/fuse/dev.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"15487f98863dc7156ed43c5be26d478beb82ba35","status":"affected","version":"5d7bc7e8680c7ca4c8a4f139ce2a54ccb8131ef0","versionType":"git"},{"lessThan":"bd23fa0c16c5c86e5b7713224ffbb87d9db81cca","status":"affected","version":"5d7bc7e8680c7ca4c8a4f139ce2a54ccb8131ef0","versionType":"git"},{"lessThan":"9dbf1b2fadfc6c40805631d8a8276d1639fc9ab6","status":"affected","version":"5d7bc7e8680c7ca4c8a4f139ce2a54ccb8131ef0","versionType":"git"},{"lessThan":"dd92773d4d9cea010474eb08a5133c14ff6ab53a","status":"affected","version":"5d7bc7e8680c7ca4c8a4f139ce2a54ccb8131ef0","versionType":"git"},{"lessThan":"99c317d7f8b7bbf3de16d20a01f363e390114cea","status":"affected","version":"5d7bc7e8680c7ca4c8a4f139ce2a54ccb8131ef0","versionType":"git"},{"lessThan":"12df4cfa738aefff21756728e91056d7defb0fe6","status":"affected","version":"5d7bc7e8680c7ca4c8a4f139ce2a54ccb8131ef0","versionType":"git"},{"lessThan":"e692f0cb86204dcdb9dddc0b355407eda6394a67","status":"affected","version":"5d7bc7e8680c7ca4c8a4f139ce2a54ccb8131ef0","versionType":"git"},{"lessThan":"9c954499d43aefac01c5dfb57a82b13d2dcf4b94","status":"affected","version":"5d7bc7e8680c7ca4c8a4f139ce2a54ccb8131ef0","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["fs/fuse/dev.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.20"},{"lessThan":"4.20","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.143","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.94","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.36","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.13","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.259","versionStartIncluding":"4.20","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.210","versionStartIncluding":"4.20","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.176","versionStartIncluding":"4.20","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.143","versionStartIncluding":"4.20","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.94","versionStartIncluding":"4.20","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.36","versionStartIncluding":"4.20","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.13","versionStartIncluding":"4.20","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"4.20","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nfuse: reject fuse_notify() pagecache ops on directories\n\nThe operations FUSE_NOTIFY_STORE and FUSE_NOTIFY_RETRIEVE allow the\nFUSE daemon to actively write/read pagecache contents.\n\nFor directories with FOPEN_CACHE_DIR, the pagecache is used as\nkernel-internal cache storage, and userspace is not supposed to have\ndirect access to this cache - in particular, fuse_parse_cache() will hit\nWARN_ON() if the cache contains bogus data.\n\nReject FUSE_NOTIFY_STORE and FUSE_NOTIFY_RETRIEVE on anything other than\nregular files with -EINVAL."}],"providerMetadata":{"dateUpdated":"2026-06-25T08:38:47.420Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/15487f98863dc7156ed43c5be26d478beb82ba35"},{"url":"https://git.kernel.org/stable/c/bd23fa0c16c5c86e5b7713224ffbb87d9db81cca"},{"url":"https://git.kernel.org/stable/c/9dbf1b2fadfc6c40805631d8a8276d1639fc9ab6"},{"url":"https://git.kernel.org/stable/c/dd92773d4d9cea010474eb08a5133c14ff6ab53a"},{"url":"https://git.kernel.org/stable/c/99c317d7f8b7bbf3de16d20a01f363e390114cea"},{"url":"https://git.kernel.org/stable/c/12df4cfa738aefff21756728e91056d7defb0fe6"},{"url":"https://git.kernel.org/stable/c/e692f0cb86204dcdb9dddc0b355407eda6394a67"},{"url":"https://git.kernel.org/stable/c/9c954499d43aefac01c5dfb57a82b13d2dcf4b94"}],"title":"fuse: reject fuse_notify() pagecache ops on directories","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-53168","datePublished":"2026-06-25T08:38:47.420Z","dateReserved":"2026-06-09T07:44:35.389Z","dateUpdated":"2026-06-25T08:38:47.420Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-06-25 09:16:34","lastModifiedDate":"2026-06-30 14:44:27","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"53168","Ordinal":"1","Title":"fuse: reject fuse_notify() pagecache ops on directories","CVE":"CVE-2026-53168","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"53168","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nfuse: reject fuse_notify() pagecache ops on directories\n\nThe operations FUSE_NOTIFY_STORE and FUSE_NOTIFY_RETRIEVE allow the\nFUSE daemon to actively write/read pagecache contents.\n\nFor directories with FOPEN_CACHE_DIR, the pagecache is used as\nkernel-internal cache storage, and userspace is not supposed to have\ndirect access to this cache - in particular, fuse_parse_cache() will hit\nWARN_ON() if the cache contains bogus data.\n\nReject FUSE_NOTIFY_STORE and FUSE_NOTIFY_RETRIEVE on anything other than\nregular files with -EINVAL.","Type":"Description","Title":"fuse: reject fuse_notify() pagecache ops on directories"}]}}}