{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3950 exists.","fix":"Apply the vendor's patch.","what":"CVE-2026-3950 is a medium-severity memory corruption vulnerability in strukturag libheif, published on 11 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-2026-3950 and fix it if it is affected.\n\nWhat it is: CVE-2026-3950 is a medium-severity memory corruption vulnerability in strukturag libheif, published on 11 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3950 exists.\n\nAffected product: strukturag libheif. 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-2026-3950/ (Markdown: https://insights.sbomify.com/CVE-2026-3950/index.md)","id":"CVE-2026-3950","markdown":"https://insights.sbomify.com/CVE-2026-3950/index.md","name":"CVE-2026-3950","record":{"aliases":["DEBIAN-CVE-2026-3950","GHSA-cp66-x46c-28rg","UBUNTU-CVE-2026-3950"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["denial_of_service","data_read"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"HEIF image library","requires_auth":"low_privilege","summary":"An out-of-bounds read in libheif allows local attackers to cause denial of service or disclose memory contents via crafted files.","user_interaction":"not_required","vuln_class":"memory_corruption"},"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:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"cwes":[{"id":"CWE-125","name":"Out-of-bounds Read"},{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer"}],"description":"A vulnerability was identified in strukturag libheif up to 1.21.2. This impacts the function Track::load of the file libheif/sequences/track.cc of the component stsz/stts. The manipulation leads to out-of-bounds read. The attack needs to be performed locally. The exploit is publicly available and might be used. Applying a patch is the recommended action to fix this issue. The patch available is inofficial and not approved yet.","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":"strukturag libheif stsz/stts track.cc load out-of-bounds","id":"CVE-2026-3950","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":7,"next":{"headline":"LockerProject Locker Error Response registry.js authIsAwesome cross site scripting","id":"CVE-2026-3951"},"packages":[],"prev":{"headline":"strukturag libheif HEIF File decoder_vvdec.cc vvdec_push_data2 out-of-bounds","id":"CVE-2026-3949"},"products":["libheif"],"published":"2026-03-11","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":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-03-11","vendors":["strukturag"]},"summary":"An out-of-bounds read in libheif allows local attackers to cause denial of service or disclose memory contents via crafted files.","url":"https://insights.sbomify.com/CVE-2026-3950/"}