{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-87933 exists.","fix":"Apply the vendor's patch.","what":"CVE-2026-87933 is a medium-severity use after free vulnerability in DaveGamble cJSON, published on 10 Sep 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-2026-87933 and fix it if it is affected.\n\nWhat it is: CVE-2026-87933 is a medium-severity use after free vulnerability in DaveGamble cJSON, published on 10 Sep 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-2026-87933 exists.\n\nAffected product: DaveGamble cJSON. 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-2026-87933/ (Markdown: https://insights.sbomify.com/CVE-2026-87933/index.md)","id":"CVE-2026-87933","markdown":"https://insights.sbomify.com/CVE-2026-87933/index.md","name":"CVE-2026-87933","record":{"aliases":["AZL-100911","DEBIAN-CVE-2026-87933","ECHO-bdd3-ee8d-c65f","GHSA-7jcg-95pj-h5fp","UBUNTU-CVE-2026-87933"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"C JSON library","requires_auth":"none","summary":"A use-after-free vulnerability in cJSON's MergePatch function allows remote attackers to potentially execute code or cause denial of service.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[],"cvss":{"score":6.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"cwes":[{"id":"CWE-416","name":"Use After Free"},{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer"}],"description":"A vulnerability was found in DaveGamble cJSON up to 1.7.19. The affected element is the function cJSONUtils_MergePatch of the file cJSON_Utils.c. The manipulation results in use after free. The attack may be launched remotely. The exploit has been made public and could be used. The pull request to fix this issue awaits acceptance.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"DaveGamble cJSON cJSON_Utils.c cJSONUtils_MergePatch use after free","id":"CVE-2026-87933","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"use_after_free","year":"2026"},"n_packages":0,"n_references":7,"next":{"headline":"Paid Downloads \u003c= 3.15 - Unauthenticated Arbitrary File Upload via 'paiddownloads_update_file' Action","id":"CVE-2026-87935"},"packages":[],"prev":{"headline":"Memory corruption in Pavlok Behavioral Conditioning Wearable","id":"CVE-2026-87931"},"products":["cJSON"],"published":"2026-09-10","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"2026-09-10","vendors":["DaveGamble"]},"summary":"A use-after-free vulnerability in cJSON's MergePatch function allows remote attackers to potentially execute code or cause denial of service.","url":"https://insights.sbomify.com/CVE-2026-87933/"}