{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-55197 exists.","fix":"No fix has been published for CVE-2026-55197 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-55197 is a high-severity missing authorization vulnerability in nesquena hermes-webui, published on 17 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-55197 and fix it if it is affected.\n\nWhat it is: CVE-2026-55197 is a high-severity missing authorization vulnerability in nesquena hermes-webui, published on 17 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-55197 exists.\n\nAffected product: nesquena hermes-webui. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2026-55197/ (Markdown: https://insights.sbomify.com/CVE-2026-55197/index.md)","id":"CVE-2026-55197","markdown":"https://insights.sbomify.com/CVE-2026-55197/index.md","name":"CVE-2026-55197","record":{"aliases":["GHSA-5wqv-fhmr-pjgh"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Hermes WebUI","requires_auth":"low_privilege","summary":"Authenticated users can bypass profile boundaries to read other users' session transcripts and metadata via the /api/session endpoint.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":7.1,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-639","name":"Authorization Bypass Through User-Controlled Key"}],"description":"Hermes WebUI before 0.51.443 contains a broken access control vulnerability in the /api/session endpoint that allows authenticated users to disclose cross-profile session transcripts. Attackers can bypass profile boundary checks by directly querying session IDs belonging to other profiles via GET /api/session?session_id=\u003cforeign_id\u003e\u0026messages=1 to retrieve unauthorized conversation transcripts and metadata.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"Hermes WebUI \u003c 0.51.443 - Broken Access Control in /api/session Endpoint","id":"CVE-2026-55197","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"Hermes WebUI \u003c 0.51.443 - Cross-Profile Session Data Exfiltration via Session Export Endpoint","id":"CVE-2026-55198"},"packages":[],"prev":{"headline":"Hermes WebUI \u003c 0.51.409 - Unauthenticated Passkey Registration via Authentication Bypass","id":"CVE-2026-55196"},"products":["hermes-webui"],"published":"2026-06-17","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-17","vendors":["nesquena"]},"summary":"Authenticated users can bypass profile boundaries to read other users' session transcripts and metadata via the /api/session endpoint.","url":"https://insights.sbomify.com/CVE-2026-55197/"}