{"answers":{"affected":"2 open source packages ship an affected version, including astro.","exploited":"There is no known exploitation of CVE-2026-114127 in the wild and no public exploit code.","fix":"Upgrade astro to 7.3.3 or later.","what":"CVE-2026-114127 is a low-severity vulnerability in withastro astro, published on 21 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-114127 and fix it if it is affected.\n\nWhat it is: CVE-2026-114127 is a low-severity vulnerability in withastro astro, published on 21 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-114127 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- astro (npm): affected from 7.1.0; fixed in 7.3.3\n- astro (npm): affected from 7.1.0; fixed in 7.3.3\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-2026-114127/ (Markdown: https://insights.sbomify.com/CVE-2026-114127/index.md)","id":"CVE-2026-114127","markdown":"https://insights.sbomify.com/CVE-2026-114127/index.md","name":"CVE-2026-114127","record":{"aliases":["GHSA-mpr7-6m5w-76rw"],"analysis":null,"analysis_generated_by":null,"assigner":"GitHub_M","cpe":[],"cvss":{"score":2.3,"severity":"low","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"Astro is a web framework for content-driven websites. From 7.1.0 until 7.3.3, Astro's server-side View Transition CSS generator does not keep string animation properties within their generated declarations. An application that passes attacker-controlled data into properties such as duration, delay, easing, direction, fillMode, or animation names can allow CSS delimiters to terminate the declaration and add attacker-selected rules to the server-rendered page. The generated stylesheet still escapes literal less-than characters, so the injected content cannot terminate the style element or directly inject HTML or JavaScript. The injected CSS can conceal or reposition content, add generated text, and otherwise misrepresent the interface; some applications may also expose data already present in selectable DOM attributes through conditional resource loads. This issue is fixed in 7.3.3.","ecosystems":["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":"Astro: Arbitrary CSS injection in Astro View Transitions","id":"CVE-2026-114127","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":null,"year":"2026"},"n_packages":2,"n_references":4,"next":{"headline":"Astro: Reflected/Stored XSS via unescaped \u003cscript\u003e/\u003cstyle\u003e tag content in JSX/MDX rendering","id":"CVE-2026-114128"},"packages":[{"ecosystem":"npm","fixed":["7.3.3"],"introduced":["7.1.0"],"last_affected":[],"package":"astro","purl":null,"source":"GHSA-mpr7-6m5w-76rw"},{"ecosystem":"npm","fixed":["7.3.3"],"introduced":["7.1.0"],"last_affected":[],"package":"astro","purl":"pkg:npm/astro","source":"GHSA-mpr7-6m5w-76rw"}],"prev":{"headline":"Storybook dev server: devices on the same network can obtain the WebSocket token and write code into story files","id":"CVE-2026-114126"},"products":["astro"],"published":"2026-10-21","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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-21","vendors":["withastro"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-114127/"}