{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-126799", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-11-11T20:01:47.477Z", "datePublished": "2026-11-11T20:53:03.948Z", "dateUpdated": "2026-11-11T20:53:03.948Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-11-11T20:53:03.948Z"}, "datePublic": "2026-11-11T07:18:07.000Z", "title": "Gotenberg 8.31.0 before 8.38.0 SSRF via IPv6 Zone Identifiers in IsPublicIP", "descriptions": [{"lang": "en", "value": "Gotenberg 8.31.0 before 8.38.0 contains a server-side request forgery vulnerability in IsPublicIP() that allows unauthenticated attackers to bypass private-IP deny-list protections using IPv6 zone identifiers. Attackers can append a zone such as %25eth0 to the unspecified address or blocked IPv6 prefixes in downloadFrom, webhook, or Chromium/LibreOffice URLs to reach internal services and read responses in the returned PDF."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Server-Side Request Forgery (SSRF)", "cweId": "CWE-918", "type": "CWE"}]}], "affected": [{"vendor": "gotenberg", "product": "gotenberg", "defaultStatus": "unaffected", "versions": [{"version": "8.31.0", "lessThan": "8.38.0", "versionType": "semver", "status": "affected"}], "packageURL": "pkg:golang/github.com/gotenberg/gotenberg/v8"}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:thecodingmachine:gotenberg:*:*:*:*:*:*:*:*", "versionStartIncluding": "8.31.0", "versionEndExcluding": "8.38.0"}]}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:L/SA:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "LOW", "subAvailabilityImpact": "NONE", "baseScore": 6.9, "baseSeverity": "MEDIUM"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH"}}], "references": [{"url": "https://github.com/gotenberg/gotenberg/security/advisories/GHSA-fqg9-x2xw-5crx", "tags": ["vendor-advisory"], "name": "GitHub Security Advisory (GHSA-fqg9-x2xw-5crx)"}, {"url": "https://github.com/gotenberg/gotenberg/commit/8e850b1c932452627fba397f2005dd6fd57b9617", "tags": ["patch"]}, {"url": "https://github.com/gotenberg/gotenberg/releases/tag/v8.38.0", "tags": ["release-notes"], "name": "gotenberg v8.38.0 Release Notes"}, {"url": "https://github.com/gotenberg/gotenberg/blob/v8.37.0/pkg/gotenberg/outbound.go#L112-L142", "tags": ["technical-description"]}, {"name": "VulnCheck Advisory: Gotenberg 8.31.0 before 8.38.0 SSRF via IPv6 Zone Identifiers in IsPublicIP", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/gotenberg-8.31.0-before-8.38.0-ssrf-via-ipv6-zone-identifiers-in-ispublicip"}], "credits": [{"lang": "en", "value": "euriconicacio", "type": "finder"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

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