CVE-2026-55897

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Source

https://cve.org/CVERecord?id=CVE-2026-55897

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55897.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-55897

Aliases

GHSA-vj96-f37g-37f6

Published

2026-09-21T19:29:37Z

Modified

2026-09-26T03:30:41Z

Severity

8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator

Summary

luci-app-advanced-reboot read ACL exposes /bin/sh through file.exec, allowing delegated users to run commands as root

Details

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.

Database specific

{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-78"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55897.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "fixed":  "1.1.2-6"
                }
            ],
            "source":  "AFFECTED_FIELD"
        }
    ]
}

References

Affected packages

Git / github.com/openwrt/luci

Affected ranges

Type

GIT

Repo

https://github.com/openwrt/luci

Events

Introduced

Fixed

2df00deb122093cbf429266ffef7ad06aaecb48f

Fixed

f85102548ee8325bfd581a0327b210b5f7670829

Database specific

Show details

{
    "source":  "REFERENCES"
}

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55897.json"