{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-102983", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-09-29T20:46:08.333Z", "datePublished": "2026-09-30T14:32:03.861Z", "dateUpdated": "2026-09-30T14:33:11.551Z"}, "containers": {"cna": {"title": "Astro: Netlify Image CDN allowlist bypass enables SSRF", "problemTypes": [{"descriptions": [{"cweId": "CWE-625", "lang": "en", "description": "CWE-625: Permissive Regular Expression", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-918", "lang": "en", "description": "CWE-918: Server-Side Request Forgery (SSRF)", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 6.3, "baseSeverity": "MEDIUM", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/withastro/astro/security/advisories/GHSA-4233-jc72-56c5", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/withastro/astro/security/advisories/GHSA-4233-jc72-56c5"}, {"name": "https://github.com/withastro/astro/pull/17752", "tags": ["x_refsource_MISC"], "url": "https://github.com/withastro/astro/pull/17752"}, {"name": "https://github.com/withastro/astro/commit/e362d4cf540b27730482455c8fc02efe57d16702", "tags": ["x_refsource_MISC"], "url": "https://github.com/withastro/astro/commit/e362d4cf540b27730482455c8fc02efe57d16702"}, {"name": "https://github.com/withastro/astro/releases/tag/@astrojs/[email protected]", "tags": ["x_refsource_MISC"], "url": "https://github.com/withastro/astro/releases/tag/@astrojs/[email protected]"}], "affected": [{"vendor": "withastro", "product": "astro", "versions": [{"version": ">= 5.2.0, < 8.2.4", "status": "affected"}]}, {"vendor": "@astrojs", "product": "netlify", "versions": [{"version": ">= 5.2.0, < 8.2.4", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-30T14:33:11.551Z"}, "descriptions": [{"lang": "en", "value": "Astro is a web framework for content-driven websites. From 5.2.0 until 8.2.4, the @astrojs/netlify adapter generates regular expressions for Netlify Image CDN remote-image allowlists without anchoring them to the beginning of the URL. Because Netlify evaluates these expressions with RegExp.test(), an allowed origin appearing only in a source URL's path or query can satisfy image.domains or image.remotePatterns while the URL's actual host remains attacker-controlled. An unauthenticated request to the public /.netlify/images endpoint can therefore cause the Image CDN to request attacker-selected URLs and may probe or reach internal services. Netlify egress protections may constrain reachable targets, and image transformation limits direct response exfiltration; no confidentiality or integrity impact has been demonstrated. This issue is fixed in version 8.2.4."}], "source": {"advisory": "GHSA-4233-jc72-56c5", "discovery": "UNKNOWN"}}}}

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