{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-10054 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-10054 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-10054 is a high-severity missing authorization vulnerability in Eclipse Theia, published on 3 Jul 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-10054 and fix it if it is affected.\n\nWhat it is: CVE-2026-10054 is a high-severity missing authorization vulnerability in Eclipse Theia, published on 3 Jul 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-10054 in the wild and no public exploit code.\n\nAffected product: Eclipse Theia. 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-2026-10054/ (Markdown: https://insights.sbomify.com/CVE-2026-10054/index.md)","id":"CVE-2026-10054","markdown":"https://insights.sbomify.com/CVE-2026-10054/index.md","name":"CVE-2026-10054","record":{"aliases":["GHSA-78g8-vm3p-97c6"],"analysis":{"component_type":"developer_tool","fix_type":"patch","impacts":["code_execution","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Eclipse Theia IDE","requires_auth":"none","summary":"Attackers can execute arbitrary OS commands via unauthenticated WebSocket terminal access in Eclipse Theia due to missing origin validation and authentication.","user_interaction":"required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"eclipse","cpe":[],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-306","name":"Missing Authentication for Critical Functionality"},{"id":"CWE-1385","name":"Missing Origin Validation in WebSockets"}],"description":"In affected versions of Eclipse Theia (1.8.1 and later), the browser backend exposes privileged terminal RPC over WebSocket (/services/shell-terminal, /services/terminals/:id) without service-level authentication.\n\nWebSocket origin validation in @theia/core is fail-open: connections are accepted when the Origin header is missing or when no THEIA_HOSTS allowlist is configured (the default). The Socket.IO integration additionally replaces the real Origin header with a client-supplied fix-origin header that an attacker can control or omit.\n\nAs a result, a foreign-origin web page visited by a user with a running Theia instance can open the /services WebSocket namespace, invoke terminal creation, attach to the resulting terminal data channel, execute arbitrary OS commands, and read their output. This affects both local developer setups (drive-by attack) and hosted or tunneled deployments without strong external authentication.\n\nA fix is in development that enforces same-origin validation by default, removes trust in the fix-origin header, gates HTTP and WebSocket access on a SameSite=Strict; HttpOnly connection-token cookie, and sanitizes shell terminal creation options.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Missing authorization in Eclipse Theia","id":"CVE-2026-10054","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Server-side request forgery in Eclipse Theia","id":"CVE-2026-10055"},"packages":[],"prev":{"headline":"Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in GitLab","id":"CVE-2026-10053"},"products":["Eclipse Theia"],"published":"2026-07-03","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":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-07-07","vendors":["Eclipse Foundation"]},"summary":"Attackers can execute arbitrary OS commands via unauthenticated WebSocket terminal access in Eclipse Theia due to missing origin validation and authentication.","url":"https://insights.sbomify.com/CVE-2026-10054/"}