{"cve":"CVE-2026-45742","nvd":{"published":"2026-08-19T15:17:05.170","modified":"2026-10-27T13:10:00.360","status":"Deferred","description":"Gotenberg is a Docker-powered stateless API for PDF files. From 8.10.0 until 8.33.0, the newContext function in pkg/modules/api/context.go starts one errgroup.Go goroutine for each multipart downloadFrom entry and allows those goroutines to concurrently write to the shared ctx.files, ctx.diskToOriginal, and ctx.filesByField maps and slices. Go maps and slices are not safe for concurrent mutation, so a crafted multipart request containing many downloadFrom entries can trigger a data race and terminate the process with a fatal concurrent map writes runtime error. The default configuration enables downloadFrom and disables authentication, allowing an unauthenticated remote attacker to crash an exposed conversion service and cause a denial of service. This issue is fixed in version 8.33.0.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-362"],"references":["https://github.com/gotenberg/gotenberg/commit/6671b5e5d30289087ca80130fc76f130cfa4dd7b","https://github.com/gotenberg/gotenberg/releases/tag/v8.33.0","https://github.com/gotenberg/gotenberg/security/advisories/GHSA-vp73-vjw8-8f32","https://github.com/gotenberg/gotenberg/security/advisories/GHSA-vp73-vjw8-8f32"],"products":[],"source":"nvd","synced_at":"2026-10-27T13:36:07.289888057+00:00"},"epss":{"cve":"CVE-2026-45742","score":0.00705,"percentile":0.53073,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-vp73-vjw8-8f32","url":"https://osv.dev/vulnerability/GHSA-vp73-vjw8-8f32","summary":"Gotenberg has a Race Condition via Multipart `downloadFrom` Handling","modified":"2026-06-25T23:11:14.555369010Z","packages":[{"ecosystem":"Go","name":"github.com/gotenberg/gotenberg/v8","purl":"pkg:golang/github.com/gotenberg/gotenberg/v8","ranges":[">=8.10.0 <8.33.0"],"fixed":["8.33.0"]}]},{"id":"GO-2026-5669","url":"https://osv.dev/vulnerability/GO-2026-5669","summary":"Gotenberg has a Race Condition via Multipart `downloadFrom` Handling in github.com/gotenberg/gotenberg","modified":"2026-06-25T23:01:25.646422762Z","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":[">=8.10.0 <8.33.0"],"fixed":["8.33.0"]}]}],"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."]}