{"answers":{"affected":"1 open source package ship an affected version, including gitlab. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-3994 exists.","fix":"Upgrade gitlab to a fixed version for your release line: 16.0.8, 16.1.3 or 16.2.2.","what":"CVE-2023-3994 is a high-severity denial of service vulnerability in Gitlab Gitlab, published on 2 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-3994 and fix it if it is affected.\n\nWhat it is: CVE-2023-3994 is a high-severity denial of service vulnerability in Gitlab Gitlab, published on 2 Aug 2023. 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-2023-3994 exists.\n\nAffected packages and fixed versions:\n- gitlab (Bitnami): affected from 9.3.0; fixed in 16.0.8, 16.1.3, 16.2.2\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-2023-3994/ (Markdown: https://insights.sbomify.com/CVE-2023-3994/index.md)","id":"CVE-2023-3994","markdown":"https://insights.sbomify.com/CVE-2023-3994/index.md","name":"CVE-2023-3994","record":{"aliases":["BIT-gitlab-2023-3994","GHSA-5jfm-fvc2-73xf","UBUNTU-CVE-2023-3994"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"GitLab","requires_auth":"none","summary":"Attackers can cause denial of service in GitLab by sending crafted payloads to the preview_markdown endpoint, exploiting inefficient regular expressions.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitLab","cpe":[{"product":"gitlab","vendor":"gitlab"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-1333","name":"Inefficient Regular Expression Complexity"}],"description":"An issue has been discovered in GitLab CE/EE affecting all versions starting from 9.3 before 16.0.8, all versions starting from 16.1 before 16.1.3, all versions starting from 16.2 before 16.2.2. A Regular Expression Denial of Service was possible via sending crafted payloads which use ProjectReferenceFilter to the preview_markdown endpoint.","ecosystems":["Bitnami"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Inefficient Regular Expression Complexity in GitLab","id":"CVE-2023-3994","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"gitlab:gitlab","products":["gitlab:gitlab"],"type":"denial_of_service","year":"2023"},"n_packages":1,"n_references":2,"next":{"headline":"ARMember Lite - Membership Plugin \u003c= 4.0.16 - Authenticated (Administrator+) Stored Cross-Site Scripting","id":"CVE-2023-3996"},"packages":[{"ecosystem":"Bitnami","fixed":["16.0.8","16.1.3","16.2.2"],"introduced":["9.3.0","16.1.0","16.2.0"],"last_affected":[],"package":"gitlab","purl":"pkg:bitnami/gitlab","source":"BIT-gitlab-2023-3994"}],"prev":{"headline":"Insertion of Sensitive Information into Log File in GitLab","id":"CVE-2023-3993"},"products":["GitLab"],"published":"2023-08-02","related":[{"cvss_score":10,"headline":"GitLab Community Edition and Enterprise Edition Integer Overflow or Wraparound","id":"CVE-2026-97229","kev_date_added":"2026-10-29","published":"2026-10-13"},{"cvss_score":10,"headline":"GitLab Community Edition and Enterprise Edition Path Traversal","id":"CVE-2026-85706","kev_date_added":"2026-09-11","published":"2026-09-12"},{"cvss_score":10,"headline":"GitLab Community and Enterprise Editions Improper Access Control","id":"CVE-2023-7028","kev_date_added":"2024-05-01","published":"2024-01-12"},{"cvss_score":10,"headline":"GitLab Community and Enterprise Editions Remote Code Execution","id":"CVE-2021-22205","kev_date_added":"2021-11-03","published":"2021-04-23"},{"cvss_score":6.8,"headline":"GitLab Community and Enterprise Editions Server-Side Request Forgery (SSRF)","id":"CVE-2021-39935","kev_date_added":"2026-02-03","published":"2021-12-13"},{"cvss_score":6.8,"headline":"GitLab Server-Side Request Forgery (SSRF)","id":"CVE-2021-22175","kev_date_added":"2026-02-18","published":"2021-06-11"},{"cvss_score":10,"headline":"Integer Overflow or Wraparound in GitLab","id":"CVE-2026-110264","kev_date_added":null,"published":"2026-10-22"}],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"2026-04-27","vendors":["GitLab"]},"summary":"Attackers can cause denial of service in GitLab by sending crafted payloads to the preview_markdown endpoint, exploiting inefficient regular expressions.","url":"https://insights.sbomify.com/CVE-2023-3994/"}