{"answers":{"affected":"4 open source packages ship an affected version, including action_text-trix and trix.","exploited":"There is no known exploitation of CVE-2026-73426 in the wild and no public exploit code.","fix":"Upgrade action_text-trix to 2.1.17 or later.","what":"CVE-2026-73426 is a medium-severity cross-site scripting vulnerability in basecamp trix, published on 18 Aug 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-73426 and fix it if it is affected.\n\nWhat it is: CVE-2026-73426 is a medium-severity cross-site scripting vulnerability in basecamp trix, published on 18 Aug 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-73426 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- action_text-trix (RubyGems): affected all versions; fixed in 2.1.17\n- action_text-trix (RubyGems): affected all versions; fixed in 2.1.17\n- trix (npm): affected all versions; fixed in 2.1.17\n- trix (npm): affected all versions; fixed in 2.1.17\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-2026-73426/ (Markdown: https://insights.sbomify.com/CVE-2026-73426/index.md)","id":"CVE-2026-73426","markdown":"https://insights.sbomify.com/CVE-2026-73426/index.md","name":"CVE-2026-73426","record":{"aliases":["GHSA-qmpg-8xg6-ph5q"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Trix rich text editor","requires_auth":"low_privilege","summary":"Attackers can execute arbitrary JavaScript in user sessions via malicious serialized attributes in the Trix rich text editor library.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":4.6,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"Trix is a what-you-see-is-what-you-get rich text editor for everyday writing. Prior to 2.1.17, Trix is vulnerable to cross-site scripting when a data-trix-serialized-attributes attribute bypasses the DOMPurify sanitizer. An attacker can craft HTML containing a data-trix-serialized-attributes attribute with a malicious payload that, when rendered, executes arbitrary JavaScript in the user's session and may perform unauthorized actions or disclose sensitive information. This issue is fixed in version 2.1.17.","ecosystems":["RubyGems","npm"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Trix: Stored XSS vulnerability through serialized attributes","id":"CVE-2026-73426","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"RubyGems","product":null,"products":[],"type":"xss","year":"2026"},"n_packages":4,"n_references":5,"next":{"headline":"Trix: XSS via JSON deserialization bypass in drag-and-drop (Level0InputController)","id":"CVE-2026-73427"},"packages":[{"ecosystem":"RubyGems","fixed":["2.1.17"],"introduced":["0"],"last_affected":[],"package":"action_text-trix","purl":null,"source":"GHSA-qmpg-8xg6-ph5q"},{"ecosystem":"RubyGems","fixed":["2.1.17"],"introduced":["0"],"last_affected":[],"package":"action_text-trix","purl":"pkg:gem/action_text-trix","source":"GHSA-qmpg-8xg6-ph5q"},{"ecosystem":"npm","fixed":["2.1.17"],"introduced":["0"],"last_affected":[],"package":"trix","purl":null,"source":"GHSA-qmpg-8xg6-ph5q"},{"ecosystem":"npm","fixed":["2.1.17"],"introduced":["0"],"last_affected":[],"package":"trix","purl":"pkg:npm/trix","source":"GHSA-qmpg-8xg6-ph5q"}],"prev":{"headline":"@astrojs/netlify generates an overly-broad Netlify Image CDN allowlist because remotePatterns.pathname metacharacters are not escaped","id":"CVE-2026-73425"},"products":["trix"],"published":"2026-08-18","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"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":"partial"},"state":"PUBLISHED","updated":"2026-08-18","vendors":["basecamp"]},"summary":"Attackers can execute arbitrary JavaScript in user sessions via malicious serialized attributes in the Trix rich text editor library.","url":"https://insights.sbomify.com/CVE-2026-73426/"}