{"id":"CVE-2026-126799","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-126799","summary":"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…","details":"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.","published":"2026-11-11T21:16:43.347","modified":"2026-11-11T21:16:43.347","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/gotenberg/gotenberg/commit/8e850b1c932452627fba397f2005dd6fd57b9617","label":"gotenberg/gotenberg@8e850b1"},"references":[{"type":"WEB","url":"https://github.com/gotenberg/gotenberg/blob/v8.37.0/pkg/gotenberg/outbound.go#L112-L142"},{"type":"WEB","url":"https://github.com/gotenberg/gotenberg/commit/8e850b1c932452627fba397f2005dd6fd57b9617"},{"type":"WEB","url":"https://github.com/gotenberg/gotenberg/releases/tag/v8.38.0"},{"type":"WEB","url":"https://github.com/gotenberg/gotenberg/security/advisories/GHSA-fqg9-x2xw-5crx"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/gotenberg-8.31.0-before-8.38.0-ssrf-via-ipv6-zone-identifiers-in-ispublicip"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-11-11T21:16:43.347"}}