{"api_version":"1","generated_at":"2026-07-16T13:23:09+00:00","cve":"CVE-2026-62947","urls":{"html":"https://cve.report/CVE-2026-62947","api":"https://cve.report/api/cve/CVE-2026-62947.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-62947","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-62947"},"summary":{"title":"OpenWrt: ACL bypass and arbitrary root file read via cgi-io cgi-download","description":"OpenWrt is a Linux operating system targeting embedded devices. Prior to 25.12.5, the cgi-download handler in cgi-io authorizes the requested path against the caller's ubus session file ACL before canonicalization, and rpcd session.c uses fnmatch() without FNM_PATHNAME, allowing traversal such as an allowed wildcard prefix followed by ../ to read root-readable files including /etc/shadow. This vulnerability is fixed in 25.12.5.","state":"PUBLISHED","assigner":"GitHub_M","published_at":"2026-07-15 19:18:38","updated_at":"2026-07-15 20:54:43"},"problem_types":["CWE-22","CWE-22 CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')"],"metrics":[{"version":"3.1","source":"security-advisories@github.com","type":"Secondary","score":"4.9","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","baseScore":4.9,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"4.9","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.9,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","version":"3.1"}}],"references":[{"url":"https://github.com/openwrt/openwrt/security/advisories/GHSA-jw5r-xhf5-2xcq","name":"https://github.com/openwrt/openwrt/security/advisories/GHSA-jw5r-xhf5-2xcq","refsource":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/openwrt/cgi-io/commit/72990b7489872112df31c94032637c907760bae4","name":"https://github.com/openwrt/cgi-io/commit/72990b7489872112df31c94032637c907760bae4","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/openwrt/cgi-io/pull/4","name":"https://github.com/openwrt/cgi-io/pull/4","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/openwrt/openwrt/releases/tag/v25.12.5","name":"https://github.com/openwrt/openwrt/releases/tag/v25.12.5","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-62947","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-62947","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"openwrt","product":"openwrt","version":"affected < 25.12.5","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-62947","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-07-15T19:31:15.364055Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-07-15T19:31:18.877Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"references":[{"tags":["exploit"],"url":"https://github.com/openwrt/openwrt/security/advisories/GHSA-jw5r-xhf5-2xcq"}],"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"product":"openwrt","vendor":"openwrt","versions":[{"status":"affected","version":"< 25.12.5"}]}],"descriptions":[{"lang":"en","value":"OpenWrt is a Linux operating system targeting embedded devices. Prior to 25.12.5, the cgi-download handler in cgi-io authorizes the requested path against the caller's ubus session file ACL before canonicalization, and rpcd session.c uses fnmatch() without FNM_PATHNAME, allowing traversal such as an allowed wildcard prefix followed by ../ to read root-readable files including /etc/shadow. This vulnerability is fixed in 25.12.5."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.9,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-22","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-07-15T17:55:12.240Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M"},"references":[{"name":"https://github.com/openwrt/openwrt/security/advisories/GHSA-jw5r-xhf5-2xcq","tags":["x_refsource_CONFIRM"],"url":"https://github.com/openwrt/openwrt/security/advisories/GHSA-jw5r-xhf5-2xcq"},{"name":"https://github.com/openwrt/cgi-io/pull/4","tags":["x_refsource_MISC"],"url":"https://github.com/openwrt/cgi-io/pull/4"},{"name":"https://github.com/openwrt/cgi-io/commit/72990b7489872112df31c94032637c907760bae4","tags":["x_refsource_MISC"],"url":"https://github.com/openwrt/cgi-io/commit/72990b7489872112df31c94032637c907760bae4"},{"name":"https://github.com/openwrt/openwrt/releases/tag/v25.12.5","tags":["x_refsource_MISC"],"url":"https://github.com/openwrt/openwrt/releases/tag/v25.12.5"}],"source":{"advisory":"GHSA-jw5r-xhf5-2xcq","discovery":"UNKNOWN"},"title":"OpenWrt: ACL bypass and arbitrary root file read via cgi-io cgi-download"}},"cveMetadata":{"assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","assignerShortName":"GitHub_M","cveId":"CVE-2026-62947","datePublished":"2026-07-15T17:55:12.240Z","dateReserved":"2026-07-14T22:32:17.731Z","dateUpdated":"2026-07-15T19:31:18.877Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-15 19:18:38","lastModifiedDate":"2026-07-15 20:54:43","problem_types":["CWE-22","CWE-22 CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')"],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","baseScore":4.9,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":1.2,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-07-15T19:31:15.364055Z","id":"CVE-2026-62947","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"62947","Ordinal":"1","Title":"OpenWrt: ACL bypass and arbitrary root file read via cgi-io cgi-","CVE":"CVE-2026-62947","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"62947","Ordinal":"1","NoteData":"OpenWrt is a Linux operating system targeting embedded devices. Prior to 25.12.5, the cgi-download handler in cgi-io authorizes the requested path against the caller's ubus session file ACL before canonicalization, and rpcd session.c uses fnmatch() without FNM_PATHNAME, allowing traversal such as an allowed wildcard prefix followed by ../ to read root-readable files including /etc/shadow. This vulnerability is fixed in 25.12.5.","Type":"Description","Title":"OpenWrt: ACL bypass and arbitrary root file read via cgi-io cgi-"}]}}}