{"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-2021-4191 exists.","fix":"Upgrade gitlab to a fixed version for your release line: 14.6.5, 14.7.4 or 14.8.2.","what":"CVE-2021-4191 is a medium-severity vulnerability in Gitlab Gitlab, published on 28 Mar 2022. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-4191 and fix it if it is affected.\n\nWhat it is: CVE-2021-4191 is a medium-severity vulnerability in Gitlab Gitlab, published on 28 Mar 2022. 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-2021-4191 exists.\n\nAffected packages and fixed versions:\n- gitlab (Bitnami): affected from 13.0.0; fixed in 14.6.5, 14.7.4, 14.8.2\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-2021-4191/ (Markdown: https://insights.sbomify.com/CVE-2021-4191/index.md)","id":"CVE-2021-4191","markdown":"https://insights.sbomify.com/CVE-2021-4191/index.md","name":"CVE-2021-4191","record":{"aliases":["BIT-gitlab-2021-4191","GHSA-m37q-w59j-4vr4","UBUNTU-CVE-2021-4191"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":true,"product_category":"GitLab","requires_auth":"none","summary":"Unauthenticated attackers can enumerate users via GraphQL API on private GitLab instances with restricted sign-ups.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitLab","cpe":[{"product":"gitlab","vendor":"gitlab"}],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"cwes":[],"description":"An issue has been discovered in GitLab CE/EE affecting versions 13.0 to 14.6.5, 14.7 to 14.7.4, and 14.8 to 14.8.2. Private GitLab instances with restricted sign-ups may be vulnerable to user enumeration to unauthenticated users through the GraphQL API.","ecosystems":["Bitnami"],"exploits":{"exploitdb":0,"first_seen":"2022-02-25","github_poc":1,"max_poc_stars":0,"metasploit":1,"nuclei":1,"refs":[{"date":"2022-02-25","kind":"metasploit","ref":"auxiliary/scanner/http/gitlab_graphql_user_enum","stars":null,"title":"GitLab GraphQL API User Enumeration"},{"date":"2023-06-05T04:08:45Z","kind":"github_poc","ref":"https://github.com/Adelittle/CVE-2021-4191_Exploits","stars":0,"title":null},{"date":null,"kind":"nuclei","ref":"http/cves/2021/CVE-2021-4191.yaml","stars":null,"title":"GitLab GraphQL API User Enumeration"}],"tier":"weaponised"},"has_fix":true,"headline":"Information disclosure in GitLab","id":"CVE-2021-4191","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"gitlab:gitlab","products":["gitlab:gitlab"],"type":"information_disclosure","year":"2021"},"n_packages":1,"n_references":3,"next":{"headline":"Use After Free in vim/vim","id":"CVE-2021-4192"},"packages":[{"ecosystem":"Bitnami","fixed":["14.6.5","14.7.4","14.8.2"],"introduced":["13.0.0","14.7.0","14.8.0"],"last_affected":[],"package":"gitlab","purl":"pkg:bitnami/gitlab","source":"BIT-gitlab-2021-4191"}],"prev":{"headline":"Denial of service in Wireshark","id":"CVE-2021-4190"},"products":["GitLab"],"published":"2022-03-28","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":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"attribution","licence":"BSD-3-Clause","name":"Metasploit"},{"class":"attribution","licence":"MIT","name":"Nuclei templates"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["GitLab"]},"summary":"Unauthenticated attackers can enumerate users via GraphQL API on private GitLab instances with restricted sign-ups.","url":"https://insights.sbomify.com/CVE-2021-4191/"}