{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-14574 exists.","fix":"No fix has been published for CVE-2026-14574 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-14574 is a medium-severity vulnerability in Eclipse Theia, published on 5 Aug 2026."},"fix_prompt":"Check this codebase for CVE-2026-14574 and fix it if it is affected.\n\nWhat it is: CVE-2026-14574 is a medium-severity vulnerability in Eclipse Theia, published on 5 Aug 2026. \nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-14574 exists.\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-2026-14574/ (Markdown: https://insights.sbomify.com/CVE-2026-14574/index.md)","id":"CVE-2026-14574","markdown":"https://insights.sbomify.com/CVE-2026-14574/index.md","name":"CVE-2026-14574","record":{"aliases":["GHSA-5f8h-2xph-wwxv","GHSA-f3w9-qfw3-xr32"],"analysis":null,"analysis_generated_by":null,"assigner":"eclipse","cpe":[{"product":"theia","vendor":"eclipse"}],"cvss":{"score":5.7,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:L/VI:H/VA:L/SC:N/SI:L/SA:L","version":"4.0"},"cwes":[{"id":"CWE-1321","name":"Improperly Controlled Modification of Object Prototype Attributes"}],"description":"In Eclipse Theia versions 0.7.0 and up until including 1.73.1, the `PreferenceUtils.merge` function in `@theia/core` recursively merges preference values without rejecting prototype-related keys (`__proto__`, `constructor`, `prototype`). Because this function is invoked by `PreferenceServiceImpl.doResolve` for every preference resolution across scopes (default, user, workspace, folder), a crafted preference value in a workspace settings file (`.theia/settings.json` or `.vscode/settings.json`) can pollute `Object.prototype` when the user opens the workspace, potentially altering application logic across the Theia process.","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":"In Eclipse Theia versions 0.7.0 and up until including 1.73.1, the `PreferenceUtils.merge` function in `@theia/core` recursively merges pref","id":"CVE-2026-14574","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Assertion in libngtcp2 when under pressure in high concurrency DNS-over-QUIC environments","id":"CVE-2026-14586"},"packages":[],"prev":{"headline":"Kirki \u003c= 6.2.0 - Authenticated (Custom+) Stored Cross-Site Scripting via Page Builder Text Content","id":"CVE-2026-14572"},"products":["Eclipse Theia"],"published":"2026-08-05","related":[{"cvss_score":9.8,"headline":"XML external entity in Eclipse Theia","id":"CVE-2021-34436","kev_date_added":null,"published":"2021-09-02"},{"cvss_score":9.6,"headline":"Cross-site Scripting (XSS) in Eclipse Theia","id":"CVE-2020-27224","kev_date_added":null,"published":"2021-02-24"},{"cvss_score":8.8,"headline":"File upload in Eclipse Theia","id":"CVE-2026-60009","kev_date_added":null,"published":"2026-08-05"},{"cvss_score":8.8,"headline":"Remote code execution in Eclipse Theia","id":"CVE-2021-34435","kev_date_added":null,"published":"2021-09-01"},{"cvss_score":8.4,"headline":"[Eclipse Theia] Indirect Prompt Injection via Adversarial Workspace File and Directory Names in AI Chat","id":"CVE-2026-44688","kev_date_added":null,"published":"2026-06-18"},{"cvss_score":8.4,"headline":"[Eclipse Theia] Arbitrary Command Execution via Untrusted Workspace Task Definitions","id":"CVE-2026-44691","kev_date_added":null,"published":"2026-06-18"},{"cvss_score":8.4,"headline":"[Eclipse Theia] Indirect Prompt Injection via Auto-Loaded Workspace Prompt Template Files in AI Chat","id":"CVE-2026-46580","kev_date_added":null,"published":"2026-06-18"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"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":"2026-08-05","vendors":["Eclipse Foundation"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-14574/"}