{"cve":"CVE-2026-42592","nvd":{"published":"2026-05-14T16:16:22.307","modified":"2026-06-17T10:48:07.097","status":"Analyzed","description":"Gotenberg is a Docker-powered stateless API for PDF files. Prior to 8.32.0, FilterOutboundURL resolves the hostname, checks the resolved IPs against the private-address deny-list, and returns only the error. It discards the resolved addresses. Chromium later performs its own DNS resolution when it navigates to the URL. An attacker who controls DNS for a hostname with a short TTL returns a public IP on the first query (Gotenberg allows) and a private IP on the second query (Chromium connects to the attacker-chosen internal address). The CDP Fetch.requestPaused handler re-checks the URL but runs its own DNS resolution, leaving a timing window before Chromium's actual TCP connect. The rendered internal service response returns to the caller as a PDF. This vulnerability is fixed in 8.32.0.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","score":5.3},"cwes":["CWE-367","CWE-918"],"references":["https://github.com/gotenberg/gotenberg/security/advisories/GHSA-2pmr-289p-44r3","https://github.com/gotenberg/gotenberg/security/advisories/GHSA-2pmr-289p-44r3"],"products":["thecodingmachine:gotenberg"],"source":"nvd","synced_at":"2026-10-19T22:35:16.954578616+00:00"},"epss":{"cve":"CVE-2026-42592","score":0.00192,"percentile":0.08939,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-2pmr-289p-44r3","url":"https://osv.dev/vulnerability/GHSA-2pmr-289p-44r3","summary":"Gotenberg's DNS rebinding bypasses SSRF validation on Chromium URL conversion routes","modified":"2026-09-10T03:51:04.128881235Z","packages":[{"ecosystem":"Go","name":"github.com/gotenberg/gotenberg/v8","purl":"pkg:golang/github.com/gotenberg/gotenberg/v8","ranges":["<=8.31.0"],"fixed":[]}]},{"id":"GO-2026-4990","url":"https://osv.dev/vulnerability/GO-2026-4990","summary":"Gotenberg's DNS rebinding bypasses SSRF validation on Chromium URL conversion routes in github.com/gotenberg/gotenberg","modified":"2026-08-07T08:11:54.221649650Z","packages":[{"ecosystem":"Go","name":"github.com/gotenberg/gotenberg/v7","purl":"pkg:golang/github.com/gotenberg/gotenberg/v7","ranges":["all versions"],"fixed":[]},{"ecosystem":"Go","name":"github.com/gotenberg/gotenberg/v8","purl":"pkg:golang/github.com/gotenberg/gotenberg/v8","ranges":["all versions"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}