{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-114128","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-10-20T21:53:58.473Z","datePublished":"2026-10-21T17:32:28.466Z","dateUpdated":"2026-10-23T15:11:02.457Z"},"containers":{"cna":{"title":"Astro: Reflected/Stored XSS via unescaped <script>/<style> tag content in JSX/MDX rendering","problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/withastro/astro/security/advisories/GHSA-98hj-9722-w3j8","tags":["x_refsource_CONFIRM"],"url":"https://github.com/withastro/astro/security/advisories/GHSA-98hj-9722-w3j8"},{"name":"https://github.com/withastro/astro/pull/17896","tags":["x_refsource_MISC"],"url":"https://github.com/withastro/astro/pull/17896"},{"name":"https://github.com/withastro/astro/commit/a548223607b9bb146d5d90ddda495343f9a2a739","tags":["x_refsource_MISC"],"url":"https://github.com/withastro/astro/commit/a548223607b9bb146d5d90ddda495343f9a2a739"},{"name":"https://github.com/withastro/astro/releases/tag/astro@7.3.2","tags":["x_refsource_MISC"],"url":"https://github.com/withastro/astro/releases/tag/astro@7.3.2"}],"affected":[{"vendor":"withastro","product":"astro","versions":[{"version":"< 7.3.2","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-10-21T17:32:28.466Z"},"descriptions":[{"lang":"en","value":"Astro is a web framework for content-driven websites. Prior to 7.3.2, Astro's JSX and MDX rendering pipeline treats string children of script and style elements as trusted HTML without distinguishing compiler-generated literal content from dynamic expression values. An application that passes attacker-controlled data directly as a dynamic child can allow a value containing a closing script or style tag to terminate the element and inject arbitrary HTML and JavaScript. Other JSX expression contexts escape dynamic strings automatically; the issue is limited to script and style children rendered through the astro:jsx renderer, including MDX components. Successful exploitation can produce reflected or stored cross-site scripting under the application's origin. This issue is fixed in 7.3.2."}],"source":{"advisory":"GHSA-98hj-9722-w3j8","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-23T14:47:55.932392Z","id":"CVE-2026-114128","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-23T15:11:02.457Z"}}]}}