{"apiVersion":"1.0","identifier":"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.","publishedAt":"2026-08-19T15:17:05","lastModifiedAt":"2026-08-19T19:17:17","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-45741","cvssScore":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N","epssProbability":0.00873,"riskScore":0.81,"affectedProduct":"Gotenberg","affectedVersions":"<=8.32.0","vulnerabilityType":"Docker image","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-45741","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-45741","en":"https://www.redsauce.net/en/cves/CVE-2026-45741","fr":"https://www.redsauce.net/fr/cves/CVE-2026-45741","pt":"https://www.redsauce.net/pt/cves/CVE-2026-45741","de":"https://www.redsauce.net/de/cves/CVE-2026-45741","sk":"https://www.redsauce.net/sk/cves/CVE-2026-45741","el":"https://www.redsauce.net/el/cves/CVE-2026-45741"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-45741"}}