CVE-2026-55897

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-55897", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-17T16:59:42.760Z", "datePublished": "2026-09-21T19:29:37.003Z", "dateUpdated": "2026-09-21T20:06:41.423Z"}, "containers": {"cna": {"title": "luci-app-advanced-reboot read ACL exposes /bin/sh through file.exec, allowing delegated users to run commands as root", "problemTypes": [{"descriptions": [{"cweId": "CWE-78", "lang": "en", "description": "CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/openwrt/luci/security/advisories/GHSA-vj96-f37g-37f6", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/openwrt/luci/security/advisories/GHSA-vj96-f37g-37f6"}, {"name": "https://github.com/openwrt/luci/pull/8710", "tags": ["x_refsource_MISC"], "url": "https://github.com/openwrt/luci/pull/8710"}, {"name": "https://github.com/openwrt/luci/commit/2df00deb122093cbf429266ffef7ad06aaecb48f", "tags": ["x_refsource_MISC"], "url": "https://github.com/openwrt/luci/commit/2df00deb122093cbf429266ffef7ad06aaecb48f"}, {"name": "https://github.com/openwrt/luci/commit/f85102548ee8325bfd581a0327b210b5f7670829", "tags": ["x_refsource_MISC"], "url": "https://github.com/openwrt/luci/commit/f85102548ee8325bfd581a0327b210b5f7670829"}], "affected": [{"vendor": "openwrt", "product": "luci", "versions": [{"version": "< 1.1.2-6", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-21T19:29:37.003Z"}, "descriptions": [{"lang": "en", "value": "luci-app-advanced-reboot is a LuCI (web interface) application for OpenWrt that provides a way to reboot your router into an alternative firmware partition or perform reboot operations directly from the web UI. Prior to 1.1.2-6, the luci-app-advanced-reboot read ACL in applications/luci-app-advanced-reboot/root/usr/share/rpcd/acl.d/luci-app-advanced-reboot.json grants rpcd file.exec permission for the general shell interpreter /bin/sh. An authenticated delegated session with that read ACL can supply caller-controlled params; rpcd authorizes the executable path and passes those arguments to the shell, allowing arbitrary commands to execute as root. Builds without the /bin/sh exec grant, including the checked openwrt-24.10 and openwrt-23.05 branches, are not affected by this specific chain. This vulnerability is fixed in 1.1.2-6."}], "source": {"advisory": "GHSA-vj96-f37g-37f6", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/openwrt/luci/security/advisories/GHSA-vj96-f37g-37f6", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-21T20:05:24.106310Z", "id": "CVE-2026-55897", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-21T20:06:41.423Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-55897", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-09-21T20:05:24.106310Z"}}}], "references": [{"url": "https://github.com/openwrt/luci/security/advisories/GHSA-vj96-f37g-37f6", "tags": ["exploit"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-21T20:06:37.074Z"}}], "cna": {"title": "luci-app-advanced-reboot read ACL exposes /bin/sh through file.exec, allowing delegated users to run commands as root", "source": {"advisory": "GHSA-vj96-f37g-37f6", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}], "affected": [{"vendor": "openwrt", "product": "luci", "versions": [{"status": "affected", "version": "< 1.1.2-6"}]}], "references": [{"url": "https://github.com/openwrt/luci/security/advisories/GHSA-vj96-f37g-37f6", "name": "https://github.com/openwrt/luci/security/advisories/GHSA-vj96-f37g-37f6", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/openwrt/luci/pull/8710", "name": "https://github.com/openwrt/luci/pull/8710", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/openwrt/luci/commit/2df00deb122093cbf429266ffef7ad06aaecb48f", "name": "https://github.com/openwrt/luci/commit/2df00deb122093cbf429266ffef7ad06aaecb48f", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/openwrt/luci/commit/f85102548ee8325bfd581a0327b210b5f7670829", "name": "https://github.com/openwrt/luci/commit/f85102548ee8325bfd581a0327b210b5f7670829", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "luci-app-advanced-reboot is a LuCI (web interface) application for OpenWrt that provides a way to reboot your router into an alternative firmware partition or perform reboot operations directly from the web UI. Prior to 1.1.2-6, the luci-app-advanced-reboot read ACL in applications/luci-app-advanced-reboot/root/usr/share/rpcd/acl.d/luci-app-advanced-reboot.json grants rpcd file.exec permission for the general shell interpreter /bin/sh. An authenticated delegated session with that read ACL can supply caller-controlled params; rpcd authorizes the executable path and passes those arguments to the shell, allowing arbitrary commands to execute as root. Builds without the /bin/sh exec grant, including the checked openwrt-24.10 and openwrt-23.05 branches, are not affected by this specific chain. This vulnerability is fixed in 1.1.2-6."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-78", "description": "CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-21T19:29:37.003Z"}}}, "cveMetadata": {"cveId": "CVE-2026-55897", "state": "PUBLISHED", "dateUpdated": "2026-09-21T20:06:41.423Z", "dateReserved": "2026-06-17T16:59:42.760Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-09-21T19:29:37.003Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "luci", "vendor": "openwrt", "versions": [{"status": "affected", "version": "< 1.1.2-6"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "luci-app-advanced-reboot is a LuCI (web interface) application for OpenWrt that provides a way to reboot your router into an alternative firmware partition or perform reboot operations directly from the web UI. Prior to 1.1.2-6, the luci-app-advanced-reboot read ACL in applications/luci-app-advanced-reboot/root/usr/share/rpcd/acl.d/luci-app-advanced-reboot.json grants rpcd file.exec permission for the general shell interpreter /bin/sh. An authenticated delegated session with that read ACL can supply caller-controlled params; rpcd authorizes the executable path and passes those arguments to the shell, allowing arbitrary commands to execute as root. Builds without the /bin/sh exec grant, including the checked openwrt-24.10 and openwrt-23.05 branches, are not affected by this specific chain. This vulnerability is fixed in 1.1.2-6."}], "id": "CVE-2026-55897", "lastModified": "2026-09-24T21:25:27.050", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-55897", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-09-21T20:05:24.106310Z", "version": "2.0.3"}}]}, "published": "2026-09-21T20:17:26.670", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/openwrt/luci/commit/2df00deb122093cbf429266ffef7ad06aaecb48f"}, {"source": "security-advisories@github.com", "url": "https://github.com/openwrt/luci/commit/f85102548ee8325bfd581a0327b210b5f7670829"}, {"source": "security-advisories@github.com", "url": "https://github.com/openwrt/luci/pull/8710"}, {"source": "security-advisories@github.com", "url": "https://github.com/openwrt/luci/security/advisories/GHSA-vj96-f37g-37f6"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/openwrt/luci/security/advisories/GHSA-vj96-f37g-37f6"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-78"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.1.2-6)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "luci", "source": "cna", "vendor": "openwrt"}, "product": "luci", "vendor": "openwrt"}], "created": "2026-09-21T20:30:18.024480+00:00", "updated": "2026-09-21T20:30:18.218842+00:00", "vendors": ["openwrt", "openwrt$PRODUCT$luci"]}