{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-100868 exists.","fix":"No fix has been published for CVE-2026-100868 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-100868 is a medium-severity missing authorization vulnerability in @penpot/mcp, published on 27 Sep 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-2026-100868 and fix it if it is affected.\n\nWhat it is: CVE-2026-100868 is a medium-severity missing authorization vulnerability in @penpot/mcp, published on 27 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-100868 exists.\n\nAffected product: @penpot/mcp. 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-2026-100868/ (Markdown: https://insights.sbomify.com/CVE-2026-100868/index.md)","id":"CVE-2026-100868","markdown":"https://insights.sbomify.com/CVE-2026-100868/index.md","name":"CVE-2026-100868","record":{"aliases":["GHSA-hm3w-7xgf-hfwf"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_read","data_modify"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Penpot design tool","requires_auth":"none","summary":"Unauthenticated attackers can access the MCP WebSocket bridge in single-user mode to intercept and forge task payloads.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-1327","name":"Binding to an Unrestricted IP Address"}],"description":"Penpot before 2.18.0 binds the MCP server plugin WebSocket bridge to all network interfaces without authentication in single-user mode. Unauthenticated attackers on adjacent networks can connect to the WebSocket port to impersonate the Penpot browser plugin, intercept task payloads, and return forged results to the MCP client.","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":"Penpot before 2.18.0 Unauthenticated WebSocket Access via MCP Bridge","id":"CVE-2026-100868","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":6,"next":{"headline":"Sylius 2.x before 2.1.16 and 2.2.9 Arbitrary Payment Action via Shop API","id":"CVE-2026-100869"},"packages":[],"prev":{"headline":"spaceship-prompt through 4.22.5 Terminal Escape Sequence Injection","id":"CVE-2026-100867"},"products":["@penpot/mcp","penpot"],"published":"2026-09-27","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":"2026-10-08","vendors":["penpot"]},"summary":"Unauthenticated attackers can access the MCP WebSocket bridge in single-user mode to intercept and forge task payloads.","url":"https://insights.sbomify.com/CVE-2026-100868/"}