{"id":"CVE-2026-45741","title":"Gotenberg is a Docker-powered stateless API for PDF files","summary":"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 fec…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N","cwe":["CWE-184","CWE-918"],"vendor":"gotenberg","product":"gotenberg","affected":["gotenberg < 8.33.0"],"published":"2026-08-19","updated":"2026-09-09","sourceUpdated":"2026-09-09T21:13:25.910","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-45741","references":[{"url":"https://github.com/gotenberg/gotenberg/commit/f9a01c9fb308372170ab7fc97b17a118ee8a125c","label":"security-advisories@github.com"},{"url":"https://github.com/gotenberg/gotenberg/releases/tag/v8.33.0","label":"security-advisories@github.com"},{"url":"https://github.com/gotenberg/gotenberg/security/advisories/GHSA-86m8-88fq-xfxp","label":"security-advisories@github.com"},{"url":"https://github.com/gotenberg/gotenberg/security/advisories/GHSA-86m8-88fq-xfxp","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-08-19T18:41:11.311035Z"},"ingestedAt":"2026-09-13T12:15:14.751Z","epss":0.00756,"epssPercentile":0.53646,"slug":"CVE-2026-45741","body":"## Overview\n\nGotenberg 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":53,"depthScoreParts":{"impact":41.3,"likelihood":0.2,"exploitation":12,"ransomware":0},"changes":[]}