{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-31158 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-31158 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-31158 is a medium-severity missing authorization vulnerability in Couchbase Couchbase Server, published on 19 May 2021. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-31158 and fix it if it is affected.\n\nWhat it is: CVE-2021-31158 is a medium-severity missing authorization vulnerability in Couchbase Couchbase Server, published on 19 May 2021. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-31158 in the wild and no public exploit code.\n\nAffected product: Couchbase Couchbase Server. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2021-31158/ (Markdown: https://insights.sbomify.com/CVE-2021-31158/index.md)","id":"CVE-2021-31158","markdown":"https://insights.sbomify.com/CVE-2021-31158/index.md","name":"CVE-2021-31158","record":{"aliases":["GHSA-j8hg-ph7r-fwmj"],"analysis":{"component_type":"database","fix_type":"patch","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Couchbase Server","requires_auth":"low_privilege","summary":"Attackers can bypass permission checks in Common Table Expression queries to read unauthorized data in Couchbase Server.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"couchbase_server","vendor":"couchbase"}],"cvss":{"score":6.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"}],"description":"In the Query Engine in Couchbase Server 6.5.x and 6.6.x through 6.6.1, Common Table Expression queries were not correctly checking the user's permissions, allowing read-access to resources beyond what those users were explicitly allowed to access.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Missing authorization in n/a","id":"CVE-2021-31158","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"couchbase:couchbase_server","products":["couchbase:couchbase_server"],"type":"missing_authorization","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Information disclosure in n/a","id":"CVE-2021-31159"},"packages":[],"prev":{"headline":"Path traversal in n/a","id":"CVE-2021-31156"},"products":["n/a"],"published":"2021-05-19","related":[{"cvss_score":8.8,"headline":"Google Chromium V8 Out-of-Bounds Memory Access","id":"CVE-2024-0519","kev_date_added":"2024-01-17","published":"2024-01-16"},{"cvss_score":8.8,"headline":"Google Chromium V8 Type Confusion","id":"CVE-2023-3079","kev_date_added":"2023-06-07","published":"2023-06-05"},{"cvss_score":8.8,"headline":"Google Chromium V8 Type Confusion","id":"CVE-2023-2033","kev_date_added":"2023-04-17","published":"2023-04-14"},{"cvss_score":9.8,"headline":"Missing authorization in n/a","id":"CVE-2023-49930","kev_date_added":null,"published":"2024-02-28"},{"cvss_score":9.8,"headline":"Missing authorization in n/a","id":"CVE-2023-49931","kev_date_added":null,"published":"2024-02-28"},{"cvss_score":9.8,"headline":"Auth bypass in n/a","id":"CVE-2021-35943","kev_date_added":null,"published":"2021-09-29"},{"cvss_score":9.8,"headline":"Information disclosure in n/a","id":"CVE-2020-24719","kev_date_added":null,"published":"2020-11-12"}],"sources":[{"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["n/a"]},"summary":"Attackers can bypass permission checks in Common Table Expression queries to read unauthorized data in Couchbase Server.","url":"https://insights.sbomify.com/CVE-2021-31158/"}