{"answers":{"affected":"5 open source packages ship an affected version, including octoprint and OctoPrint.","exploited":"There is no known exploitation of CVE-2026-54134 in the wild and no public exploit code.","fix":"Upgrade octoprint to a fixed version for your release line: 1.11.8 or 2.0.0rc3.","what":"CVE-2026-54134 is a high-severity path traversal vulnerability in OctoPrint, published on 21 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-54134 and fix it if it is affected.\n\nWhat it is: CVE-2026-54134 is a high-severity path traversal vulnerability in OctoPrint, published on 21 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-54134 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- octoprint (PyPI): affected all versions; fixed in 1.11.8, 2.0.0rc3\n- octoprint (PyPI): affected all versions; fixed in 1.11.8\n- octoprint (PyPI): affected from 2.0.0rc1; fixed in 2.0.0rc3\n- OctoPrint (PyPI): affected all versions; fixed in 1.11.8\n- OctoPrint (PyPI): affected from 2.0.0rc1; fixed in 2.0.0rc3\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-54134/ (Markdown: https://insights.sbomify.com/CVE-2026-54134/index.md)","id":"CVE-2026-54134","markdown":"https://insights.sbomify.com/CVE-2026-54134/index.md","name":"CVE-2026-54134","record":{"aliases":["GHSA-j4h9-pm27-4rfw","PYSEC-2026-2687"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_read","data_modify"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"3D printer web interface","requires_auth":"low_privilege","summary":"An attacker with upload permissions can exfiltrate arbitrary host files or delete runtime files by exploiting parser differentials in OctoPrint's upload endpoints.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-73","name":"External Control of File Name or Path"}],"description":"OctoPrint provides a web interface for controlling consumer 3D printers. Prior to 1.11.8 and 2.0.0rc3, OctoPrint's custom Tornado upload handler and Flask with Werkzeug parse request parameters differently, allowing an attacker with FILE_UPLOAD permission to inject reserved internal upload fields through query parameters or parser differentials despite the earlier GHSA-m9jh-jf9h-x3h2 fix. The affected endpoints are /api/files/{local|sdcard}, /api/languages, /plugin/backup/restore, and /plugin/pluginmanager/upload_file. An attacker can make OctoPrint treat an arbitrary host file as a temporary upload, move it into a downloadable upload directory, disclose configuration secrets or other readable files, and remove runtime files in a way that can affect a later restart. This issue is fixed in versions 1.11.8 and 2.0.0rc3.","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"OctoPrint: File exfiltration possible via query parameters on upload endpoints","id":"CVE-2026-54134","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":5,"n_references":5,"next":{"headline":"AirSane has a Remote Denial of Service (OOM) via Unvalidated Content-Length in HTTP Server","id":"CVE-2026-54135"},"packages":[{"ecosystem":"PyPI","fixed":["1.11.8"],"introduced":["0"],"last_affected":[],"package":"OctoPrint","purl":null,"source":"GHSA-j4h9-pm27-4rfw"},{"ecosystem":"PyPI","fixed":["2.0.0rc3"],"introduced":["2.0.0rc1"],"last_affected":[],"package":"OctoPrint","purl":null,"source":"GHSA-j4h9-pm27-4rfw"},{"ecosystem":"PyPI","fixed":["1.11.8","2.0.0rc3"],"introduced":["0","2.0.0rc1"],"last_affected":[],"package":"octoprint","purl":"pkg:pypi/octoprint","source":"PYSEC-2026-2687"},{"ecosystem":"PyPI","fixed":["1.11.8"],"introduced":["0"],"last_affected":[],"package":"octoprint","purl":"pkg:pypi/octoprint","source":"GHSA-j4h9-pm27-4rfw"},{"ecosystem":"PyPI","fixed":["2.0.0rc3"],"introduced":["2.0.0rc1"],"last_affected":[],"package":"octoprint","purl":"pkg:pypi/octoprint","source":"GHSA-j4h9-pm27-4rfw"}],"prev":{"headline":"jmespath.php has CompilerRuntime code injection via unescaped function names","id":"CVE-2026-54133"},"products":["OctoPrint"],"published":"2026-08-21","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-08-26","vendors":["OctoPrint"]},"summary":"An attacker with upload permissions can exfiltrate arbitrary host files or delete runtime files by exploiting parser differentials in OctoPrint's upload endpoints.","url":"https://insights.sbomify.com/CVE-2026-54134/"}