CVE-2026-126799
highGotenberg 8.31.0 before 8.38.0 contains a server-side request forgery vulnerability in IsPublicIP() that allows unauthenticated attackers to bypass private-IP…
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.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/gotenberg/gotenberg/blob/v8.37.0/pkg/gotenberg/outbound.go#L112-L142 disclosure@vulncheck.com
- https://github.com/gotenberg/gotenberg/commit/8e850b1c932452627fba397f2005dd6fd57b9617 disclosure@vulncheck.com
- https://github.com/gotenberg/gotenberg/releases/tag/v8.38.0 disclosure@vulncheck.com
- https://github.com/gotenberg/gotenberg/security/advisories/GHSA-fqg9-x2xw-5crx disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/gotenberg-8.31.0-before-8.38.0-ssrf-via-ipv6-zone-ide... disclosure@vulncheck.com