CVE-2026-114128

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{"affected": [{"affectedData": [{"product": "astro", "vendor": "withastro", "versions": [{"status": "affected", "version": "< 7.3.2"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "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."}], "id": "CVE-2026-114128", "lastModified": "2026-10-23T15:17:25.413", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-114128", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-23T14:47:55.932392Z", "version": "2.0.3"}}]}, "published": "2026-10-21T18:17:25.507", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/withastro/astro/commit/a548223607b9bb146d5d90ddda495343f9a2a739"}, {"source": "security-advisories@github.com", "url": "https://github.com/withastro/astro/pull/17896"}, {"source": "security-advisories@github.com", "url": "https://github.com/withastro/astro/releases/tag/astro@7.3.2"}, {"source": "security-advisories@github.com", "url": "https://github.com/withastro/astro/security/advisories/GHSA-98hj-9722-w3j8"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{"bugzilla": {"description": "astro: astro: Cross-Site Scripting via unescaped dynamic content in script and style elements", "id": "2558417", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2558417"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.1", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "status": "draft"}, "cwe": "CWE-79", "details": ["A flaw was found in Astro. The rendering engine fails to properly sanitize dynamic values placed inside script and style elements, mistakenly treating them as trusted markup. A remote attacker can exploit this issue by supplying crafted input that prematurely closes the tag and injects malicious code. Successful exploitation can lead to Cross-Site Scripting (XSS), allowing the execution of arbitrary web scripts in the user's browser session."], "name": "CVE-2026-114128", "package_state": [{"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Fix deferred", "package_name": "rhoai/odh-feature-server-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}], "public_date": "2026-10-21T17:32:28Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-114128\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-114128\nhttps://github.com/withastro/astro/commit/a548223607b9bb146d5d90ddda495343f9a2a739\nhttps://github.com/withastro/astro/pull/17896\nhttps://github.com/withastro/astro/releases/tag/astro@7.3.2\nhttps://github.com/withastro/astro/security/advisories/GHSA-98hj-9722-w3j8"], "threat_severity": "Moderate"}

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