{"id":"CVE-2024-32977","aliases":["GHSA-2vjq-hg5w-5gm7","PYSEC-2024-237"],"url":"https://o3.security/vulnerability/CVE-2024-32977","summary":"OctoPrint Authentication Bypass via X-Forwarded-For Header when autologinLocal is enabled","details":"### Impact\n\nOctoPrint versions up until and including 1.10.0 contain a vulnerability that allows an unauthenticated attacker to completely bypass the authentication **if the `autologinLocal` option is enabled** within `config.yaml`, even if they come from networks that are not configured as `localNetworks`, by spoofing their IP via the `X-Forwarded-For` header.\n\nIf autologin is not enabled, this vulnerability does not have any impact.\n\n### Patches\n\nThe vulnerability has been patched in version 1.10.1.\n\n### Workaround\n\nUntil the patch has been applied, OctoPrint administrators who have autologin enabled on their instances should disable it and/or to make the instance inaccessible from potentially hostile networks like the internet.\n\n### PoC\n\n1. Enable the `autologinAs` configuration within the `accessControl` section in the [OctoPrint yaml configuration file](https://docs.octoprint.org/en/master/configuration/config_yaml.html#access-control)\n2. Set your browser to add the `X-Forwarded-For: 127.0.0.1` header to HTTP requests. For example, this can be done using proxy software like Burp Suite. Alternatively, there are browser extensions such as https://github.com/MisterPhilip/x-forwarded-for, but I haven't tried them.\n3. Navigate to OctoPrint and note that it logs you in automatically.\n\n### Credits\n\nThis vulnerability was discovered and responsibly disclosed to OctoPrint by Jacopo Tediosi.","published":"2024-05-14T13:49:20.862Z","modified":"2026-10-28T02:30:31.019838306Z","cvss":{"score":7.1,"severity":"HIGH","vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L"},"epss":{"score":0.00897,"percentile":0.56446,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"octoprint","fixedVersion":"1.10.1"}],"fix":{"url":"https://github.com/OctoPrint/OctoPrint/commit/5afbec8d23508edc25b0f1bdef1620580136add4","label":"OctoPrint/OctoPrint@5afbec8"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/32xxx/CVE-2024-32977.json"},{"type":"ADVISORY","url":"https://github.com/OctoPrint/OctoPrint/security/advisories/GHSA-2vjq-hg5w-5gm7"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-32977"},{"type":"FIX","url":"https://github.com/OctoPrint/OctoPrint/commit/5afbec8d23508edc25b0f1bdef1620580136add4"},{"type":"PACKAGE","url":"https://github.com/OctoPrint/OctoPrint"},{"type":"WEB","url":"https://github.com/pypa/advisory-database/tree/main/vulns/octoprint/PYSEC-2024-237.yaml"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-28T02:30:31.019838306Z"}}