{"answers":{"affected":"4 open source packages ship an affected version, including github.com/gotenberg/gotenberg/v8 and github.com/gotenberg/gotenberg/v7. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-42591 exists.","fix":"Upgrade to a fixed version.","what":"CVE-2026-42591 is a high-severity server-side request forgery vulnerability in gotenberg, published on 14 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-42591 and fix it if it is affected.\n\nWhat it is: CVE-2026-42591 is a high-severity server-side request forgery vulnerability in gotenberg, published on 14 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-42591 exists.\n\nAffected packages and fixed versions:\n- github.com/gotenberg/gotenberg/v8 (Go): affected all versions; no fix listed\n- github.com/gotenberg/gotenberg/v8 (Go): affected all versions up to 8.31.0; no fix listed\n- github.com/gotenberg/gotenberg/v8 (Go): affected all versions up to 8.31.0; no fix listed\n- github.com/gotenberg/gotenberg/v7 (Go): affected all versions; no fix listed\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-42591/ (Markdown: https://insights.sbomify.com/CVE-2026-42591/index.md)","id":"CVE-2026-42591","markdown":"https://insights.sbomify.com/CVE-2026-42591/index.md","name":"CVE-2026-42591","record":{"aliases":["GHSA-rm4c-xj6x-49mw","GO-2026-5627"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"PDF conversion API","requires_auth":"none","summary":"Attackers can exploit the LibreOffice conversion endpoint to trigger server-side requests to internal resources, bypassing existing SSRF filters.","user_interaction":"not_required","vuln_class":"ssrf"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"gotenberg","vendor":"thecodingmachine"}],"cvss":{"score":8.2,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-918","name":"Server-Side Request Forgery"}],"description":"Gotenberg is a Docker-powered stateless API for PDF files. Prior to 8.32.0, the LibreOffice conversion endpoint (/forms/libreoffice/convert) passes uploaded documents directly to LibreOffice without inspecting their content. LibreOffice then fetches any embedded external URLs on its own, completely bypassing the SSRF filters. This vulnerability is fixed in 8.32.0.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Gotenberg: Server-Side Request Forgery (SSRF) in github.com/gotenberg/gotenberg/v8","id":"CVE-2026-42591","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"ssrf","year":"2026"},"n_packages":4,"n_references":1,"next":{"headline":"Gotenberg: DNS rebinding bypasses SSRF validation on Chromium URL conversion routes","id":"CVE-2026-42592"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/gotenberg/gotenberg/v7","purl":"pkg:golang/github.com/gotenberg/gotenberg/v7","source":"GO-2026-5627"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/gotenberg/gotenberg/v8","purl":"pkg:golang/github.com/gotenberg/gotenberg/v8","source":"GO-2026-5627"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["8.31.0"],"package":"github.com/gotenberg/gotenberg/v8","purl":null,"source":"GHSA-rm4c-xj6x-49mw"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["8.31.0"],"package":"github.com/gotenberg/gotenberg/v8","purl":"pkg:golang/github.com/gotenberg/gotenberg/v8","source":"GHSA-rm4c-xj6x-49mw"}],"prev":{"headline":"Gotenberg: ExifTool group-prefix syntax bypasses dangerous-tag blocklist","id":"CVE-2026-42590"},"products":["gotenberg"],"published":"2026-05-14","related":[{"cvss_score":10,"headline":"Gotenberg vulnerable to argument injection via newlines in ExifTool metadata values","id":"CVE-2026-40281","kev_date_added":null,"published":"2026-05-06"},{"cvss_score":9.8,"headline":"Gotenberg: Unauthenticated RCE via ExifTool Metadata Key Injection","id":"CVE-2026-42589","kev_date_added":null,"published":"2026-05-14"},{"cvss_score":9.8,"headline":"Path traversal in n/a","id":"CVE-2020-13450","kev_date_added":null,"published":"2021-01-07"},{"cvss_score":9.8,"headline":"Code injection in n/a","id":"CVE-2020-13451","kev_date_added":null,"published":"2021-01-07"},{"cvss_score":9.8,"headline":"Privilege escalation in n/a","id":"CVE-2020-13452","kev_date_added":null,"published":"2021-01-07"},{"cvss_score":9.4,"headline":"Gotenberg: Unauthenticated SSRF via default deny-list bypass in downloadFrom and webhook","id":"CVE-2026-42596","kev_date_added":null,"published":"2026-05-14"},{"cvss_score":8.7,"headline":"Gotenberg has a ReDoS via extraHttpHeaders scope feature","id":"CVE-2026-35458","kev_date_added":null,"published":"2026-04-07"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-05-14","vendors":["gotenberg"]},"summary":"Attackers can exploit the LibreOffice conversion endpoint to trigger server-side requests to internal resources, bypassing existing SSRF filters.","url":"https://insights.sbomify.com/CVE-2026-42591/"}