{"answers":{"affected":"2 open source packages ship an affected version, including astro. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-41067 exists.","fix":"Upgrade astro to 6.1.6 or later.","what":"CVE-2026-41067 is a medium-severity cross-site scripting vulnerability in withastro astro, published on 24 Apr 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-2026-41067 and fix it if it is affected.\n\nWhat it is: CVE-2026-41067 is a medium-severity cross-site scripting vulnerability in withastro astro, published on 24 Apr 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: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-41067 exists.\n\nAffected packages and fixed versions:\n- astro (npm): affected all versions; fixed in 6.1.6\n- astro (npm): affected all versions; fixed in 6.1.6\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-2026-41067/ (Markdown: https://insights.sbomify.com/CVE-2026-41067/index.md)","id":"CVE-2026-41067","markdown":"https://insights.sbomify.com/CVE-2026-41067/index.md","name":"CVE-2026-41067","record":{"aliases":["GHSA-j687-52p2-xcff"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Astro web framework","requires_auth":"none","summary":"Attackers can bypass script sanitization in Astro's define:vars directive to inject arbitrary JavaScript, enabling cross-site scripting attacks.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"astro","vendor":"astro"}],"cvss":{"score":6.1,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"Astro is a web framework. Prior to 6.1.6, the defineScriptVars function in Astro's server-side rendering pipeline uses a case-sensitive regex /\u003c\\/script\u003e/g to sanitize values injected into inline \u003cscript\u003e tags via the define:vars directive. HTML parsers close \u003cscript\u003e elements case-insensitively and also accept whitespace or / before the closing \u003e, allowing an attacker to bypass the sanitization with payloads like \u003c/Script\u003e, \u003c/script \u003e, or \u003c/script/\u003e and inject arbitrary HTML/JavaScript. This vulnerability is fixed in 6.1.6.","ecosystems":["npm"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Astro: XSS via incomplete `\u003c/script\u003e` sanitization in `define:vars` allows case-insensitive and whitespace-based bypass","id":"CVE-2026-41067","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"xss","year":"2026"},"n_packages":2,"n_references":1,"next":{"headline":"Kyverno: Cross-Namespace Read Bypasses RBAC Isolation (CVE-2026-22039 Incomplete Fix)","id":"CVE-2026-41068"},"packages":[{"ecosystem":"npm","fixed":["6.1.6"],"introduced":["0"],"last_affected":[],"package":"astro","purl":null,"source":"GHSA-j687-52p2-xcff"},{"ecosystem":"npm","fixed":["6.1.6"],"introduced":["0"],"last_affected":[],"package":"astro","purl":"pkg:npm/astro","source":"GHSA-j687-52p2-xcff"}],"prev":{"headline":"lxml: Default configuration of iterparse() and ETCompatXMLParser() allows XXE to local files","id":"CVE-2026-41066"},"products":["astro"],"published":"2026-04-24","related":[{"cvss_score":7.8,"headline":"Server source code is exposed to the public if sourcemaps are enabled","id":"CVE-2024-56159","kev_date_added":null,"published":"2024-12-19"},{"cvss_score":7.5,"headline":"Astro: Host header SSRF in prerendered error page fetch","id":"CVE-2026-54299","kev_date_added":null,"published":"2026-06-22"},{"cvss_score":7.2,"headline":"astro allows bypass of image proxy domain validation leading to SSRF and potential XSS","id":"CVE-2025-59837","kev_date_added":null,"published":"2025-10-28"},{"cvss_score":7.1,"headline":"Astro: Reflected XSS via unescaped slot name","id":"CVE-2026-50146","kev_date_added":null,"published":"2026-06-22"},{"cvss_score":7.1,"headline":"Astro is vulnerable to Reflected XSS via the server islands feature","id":"CVE-2025-64764","kev_date_added":null,"published":"2025-11-19"},{"cvss_score":6.9,"headline":"Astro middleware authentication checks based on url.pathname can be bypassed via url encoded values","id":"CVE-2025-64765","kev_date_added":null,"published":"2025-11-19"},{"cvss_score":6.9,"headline":"Unauthorized third-party images in Astro’s _image endpoint","id":"CVE-2025-55303","kev_date_added":null,"published":"2025-08-19"}],"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":"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":"2026-04-24","vendors":["withastro"]},"summary":"Attackers can bypass script sanitization in Astro's define:vars directive to inject arbitrary JavaScript, enabling cross-site scripting attacks.","url":"https://insights.sbomify.com/CVE-2026-41067/"}