{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-5186 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-5186 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-5186 is a medium-severity use after free vulnerability in Nothings stb, published on 31 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-5186 and fix it if it is affected.\n\nWhat it is: CVE-2026-5186 is a medium-severity use after free vulnerability in Nothings stb, published on 31 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-5186 in the wild and no public exploit code.\n\nAffected product: Nothings stb. 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-2026-5186/ (Markdown: https://insights.sbomify.com/CVE-2026-5186/index.md)","id":"CVE-2026-5186","markdown":"https://insights.sbomify.com/CVE-2026-5186/index.md","name":"CVE-2026-5186","record":{"aliases":["BELL-CVE-2026-5186","DEBIAN-CVE-2026-5186","GHSA-593x-hf83-hmrv","UBUNTU-CVE-2026-5186"],"analysis":{"component_type":"library","fix_type":"no_fix_stated","impacts":["code_execution","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"stb image library","requires_auth":"low_privilege","summary":"A double free vulnerability in the stb image library's GIF handler allows local 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":4.8,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"cwes":[{"id":"CWE-415","name":"Double Free"},{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer"}],"description":"A weakness has been identified in Nothings stb up to 2.30. This impacts the function stbi__load_gif_main of the file stb_image.h of the component Multi-frame GIF File Handler. This manipulation causes double free. The attack requires local access. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Nothings stb Multi-frame GIF File stb_image.h stbi__load_gif_main double free","id":"CVE-2026-5186","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"use_after_free","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Heap Out-of-Bounds Write in DecodeObjectId() in wolfSSL","id":"CVE-2026-5187"},"packages":[],"prev":{"headline":"Nothings stb_image Multi-frame GIF File stb_image.h stbi__gif_load_next heap-based overflow","id":"CVE-2026-5185"},"products":["stb"],"published":"2026-03-31","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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-03-31","vendors":["Nothings"]},"summary":"A double free vulnerability in the stb image library's GIF handler allows local attackers to potentially execute code or cause denial of service.","url":"https://insights.sbomify.com/CVE-2026-5186/"}