{"id":"CVE-2026-49956","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-49956","generatedAt":"2026-10-28T10:46:49.260Z","title":"Hermes WebUI before version 0.51.269 contains a profile isolation bypass vulnerability that allows authenticated users to access data belonging to other profiles by querying the session search endpoint without active-profile filtering.","description":"Hermes WebUI before version 0.51.269 contains a profile isolation bypass vulnerability that allows authenticated users to access data belonging to other profiles by querying the session search endpoint without active-profile filtering. Attackers can send requests to the sessions search handler to retrieve session titles and transcript message content from profiles other than their own active profile.","published":"2026-06-09T17:17:49.000Z","lastModified":"2026-07-23T08:10:00.000Z","status":"Deferred","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":7.1,"severity":"HIGH","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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-862"],"affected":[],"epss":{"score":0.00272,"percentile":0.19475,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.27%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/nesquena/hermes-webui/commit/2c7b530071bb29ae4184e83e33be5799d529568e","source":"disclosure@vulncheck.com"},{"url":"https://github.com/nesquena/hermes-webui/pull/3646","source":"disclosure@vulncheck.com"},{"url":"https://github.com/nesquena/hermes-webui/pull/3672","source":"disclosure@vulncheck.com"},{"url":"https://github.com/nesquena/hermes-webui/releases/tag/v0.51.269","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/hermes-webui-profile-isolation-bypass-via-sessions-search","source":"disclosure@vulncheck.com"},{"url":"https://github.com/nesquena/hermes-webui/pull/3646","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-49956","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}