{"answers":{"affected":"3 open source packages ship an affected version, including lemur.","exploited":"There is no known exploitation of CVE-2026-55163 in the wild and no public exploit code.","fix":"Upgrade lemur to 1.9.2 or later.","what":"CVE-2026-55163 is a medium-severity missing authorization vulnerability in Netflix lemur, published on 18 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-55163 and fix it if it is affected.\n\nWhat it is: CVE-2026-55163 is a medium-severity missing authorization vulnerability in Netflix lemur, published on 18 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-55163 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- lemur (PyPI): affected all versions; fixed in 1.9.2\n- lemur (PyPI): affected all versions; fixed in 1.9.2\n- lemur (PyPI): affected all versions; fixed in 1.9.2\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-2026-55163/ (Markdown: https://insights.sbomify.com/CVE-2026-55163/index.md)","id":"CVE-2026-55163","markdown":"https://insights.sbomify.com/CVE-2026-55163/index.md","name":"CVE-2026-55163","record":{"aliases":["GHSA-x3vf-mgxj-7785","PYSEC-2026-2591"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["privilege_escalation","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"TLS certificate management","requires_auth":"low_privilege","summary":"Non-admin role members can modify role membership and names, enabling lateral privilege escalation and access denial in Lemur certificate management.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":6.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","version":"3.1"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"}],"description":"Lemur manages TLS certificate creation. Prior to 1.9.2, PUT /api/1/roles/ in lemur/roles/views.py:298 authorized updates with RoleMemberPermission(role_id), which allowed either an administrator or any existing member of the target role. The handler passed data[\"users\"] and data[\"name\"] to service.update, allowing a non-admin member to add or remove other users and rename the role. This enabled lateral privilege grants within roles that control certificate and authority access and could deny access by removing legitimate members. The DELETE handler already required admin_permission, confirming that the weaker PUT authorization was inconsistent. The fix applies the same administrator-only requirement to the PUT handler. This issue is fixed in version 1.9.2.","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":"Lemur: Privilege escalation via PUT /api/1/roles/\u003cid\u003e — non-admin role members can rewrite role membership","id":"CVE-2026-55163","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":3,"n_references":3,"next":{"headline":"Lemur: Plaintext password storage in Lemur user-update path","id":"CVE-2026-55164"},"packages":[{"ecosystem":"PyPI","fixed":["1.9.2"],"introduced":["0"],"last_affected":[],"package":"lemur","purl":null,"source":"GHSA-x3vf-mgxj-7785"},{"ecosystem":"PyPI","fixed":["1.9.2"],"introduced":["0"],"last_affected":[],"package":"lemur","purl":"pkg:pypi/lemur","source":"GHSA-x3vf-mgxj-7785"},{"ecosystem":"PyPI","fixed":["1.9.2"],"introduced":["0"],"last_affected":[],"package":"lemur","purl":"pkg:pypi/lemur","source":"PYSEC-2026-2591"}],"prev":{"headline":"Lemur: Crafted CRL/OCSP URLs in uploaded certificates lead to post-authentication SSRF","id":"CVE-2026-55162"},"products":["lemur"],"published":"2026-08-18","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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-19","vendors":["Netflix"]},"summary":"Non-admin role members can modify role membership and names, enabling lateral privilege escalation and access denial in Lemur certificate management.","url":"https://insights.sbomify.com/CVE-2026-55163/"}