{"id":"EUVD-2026-62422","enisaUuid":"d4a35b56-6ef8-3b98-bac5-c11bc2ce3b51","description":"Gotenberg is a Docker-powered stateless API for PDF files. In 8.32.0 and earlier, the IsPublicIP function in pkg/gotenberg/outbound.go does not reject the 2002::/16 6to4 prefix, the 64:ff9b::/96 and 64:ff9b:1::/48 NAT64 prefixes, the fec0::/10 deprecated site-local prefix, Teredo, and other transition prefixes that can embed or route to non-public IPv4 destinations. The addr.Unmap operation only handles IPv4-mapped IPv6 addresses, so a crafted DNS AAAA record can cause the outbound HTTP client to treat an address wrapping an internal destination such as 169.254.169.254 as public. An unauthenticated attacker can use a conversion route with WithDenyPrivateIPs enabled to reach cloud metadata services, and the Chromium URL conversion route can return the internal response as a PDF, potentially exposing cloud credentials. Exploitation requires a deployment whose host routes the relevant IPv6 prefix, such as a dual-stack or NAT64-enabled environment. This issue is fixed in version 8.33.0.","datePublished":"Aug 19, 2026, 2:32:50 PM","dateUpdated":"Aug 19, 2026, 6:41:18 PM","baseScore":7.5,"baseScoreVersion":"3.1","baseScoreVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N","references":"https://github.com/gotenberg/gotenberg/security/advisories/GHSA-86m8-88fq-xfxp\nhttps://github.com/gotenberg/gotenberg/commit/f9a01c9fb308372170ab7fc97b17a118ee8a125c\nhttps://github.com/gotenberg/gotenberg/releases/tag/v8.33.0\n","aliases":"CVE-2026-45741\nGHSA-86m8-88fq-xfxp\n","assigner":"GitHub_M","epss":0.37,"enisaIdProduct":[{"id":"2ad3c584-157e-3ebd-938b-dc5e9be50e4f","product":{"name":"gotenberg","vendor":{"name":"gotenberg"}},"product_version":"\u003c 8.33.0"}],"enisaIdVendor":[{"id":"6d974813-9c62-3df9-a268-2a87bece0ce3","vendor":{"name":"gotenberg"}}],"enisaIdVulnerability":[{"id":"0c725c4e-13b0-3790-866f-2209dcb0e129","vulnerability":{"id":"GHSA-86m8-88fq-xfxp","description":"Gotenberg has an SSRF deny-list bypass in IsPublicIP via IPv6 6to4 / NAT64 / site-local prefixes","datePublished":"May 29, 2026, 4:50:37 PM","dateUpdated":"May 29, 2026, 4:50:37 PM","baseScore":0.0,"references":"https://github.com/gotenberg/gotenberg/security/advisories/GHSA-86m8-88fq-xfxp\nhttps://github.com/gotenberg/gotenberg\n","enisa_id":"EUVD-2026-62422\n","aliases":"CVE-2026-45741\nGHSA-86m8-88fq-xfxp\n","epss":0.0,"dataProcessed":"Oct 25, 2026, 1:56:29 AM","vulnerabilityProduct":[],"vulnerabilityVendor":[]}},{"id":"22e3f48a-aaf2-34dd-902f-09d16bad475f","vulnerability":{"id":"CVE-2026-45741","description":"Gotenberg is a Docker-powered stateless API for PDF files. In 8.32.0 and earlier, the IsPublicIP function in pkg/gotenberg/outbound.go does not reject the 2002::/16 6to4 prefix, the 64:ff9b::/96 and 64:ff9b:1::/48 NAT64 prefixes, the fec0::/10 deprecated site-local prefix, Teredo, and other transition prefixes that can embed or route to non-public IPv4 destinations. The addr.Unmap operation only handles IPv4-mapped IPv6 addresses, so a crafted DNS AAAA record can cause the outbound HTTP client to treat an address wrapping an internal destination such as 169.254.169.254 as public. An unauthenticated attacker can use a conversion route with WithDenyPrivateIPs enabled to reach cloud metadata services, and the Chromium URL conversion route can return the internal response as a PDF, potentially exposing cloud credentials. Exploitation requires a deployment whose host routes the relevant IPv6 prefix, such as a dual-stack or NAT64-enabled environment. This issue is fixed in version 8.33.0.","datePublished":"Aug 19, 2026, 2:32:50 PM","dateUpdated":"Aug 19, 2026, 6:41:18 PM","status":"PUBLISHED","baseScore":7.5,"baseScoreVersion":"3.1","baseScoreVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N","references":"https://github.com/gotenberg/gotenberg/security/advisories/GHSA-86m8-88fq-xfxp\nhttps://github.com/gotenberg/gotenberg/commit/f9a01c9fb308372170ab7fc97b17a118ee8a125c\nhttps://github.com/gotenberg/gotenberg/releases/tag/v8.33.0\n","enisa_id":"EUVD-2026-62422\n","assigner":"GitHub_M","epss":0.37,"dataProcessed":"Oct 30, 2026, 7:17:47 AM","vulnerabilityProduct":[{"id":"0b35ecd6-c787-3675-a8f9-be04bccaeeac","product":{"name":"gotenberg","vendor":{"name":"gotenberg"}},"product_version":"\u003c 8.33.0"}],"vulnerabilityVendor":[{"id":"b07edcc2-1bd8-311b-833f-b773dba9430b","vendor":{"name":"gotenberg"}}]}}],"enisaIdAdvisory":[]}