{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-109719 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-109719 is a medium-severity use after free vulnerability in Mozilla Firefox, published on 13 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-109719 and fix it if it is affected.\n\nWhat it is: CVE-2026-109719 is a medium-severity use after free vulnerability in Mozilla Firefox, published on 13 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-109719 in the wild and no public exploit code.\n\nAffected product: Mozilla Firefox. 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-2026-109719/ (Markdown: https://insights.sbomify.com/CVE-2026-109719/index.md)","id":"CVE-2026-109719","markdown":"https://insights.sbomify.com/CVE-2026-109719/index.md","name":"CVE-2026-109719","record":{"aliases":["DEBIAN-CVE-2026-109719","GHSA-gxhg-h66x-3v4w","UBUNTU-CVE-2026-109719"],"analysis":{"component_type":"browser","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Mozilla Firefox","requires_auth":"none","summary":"A race condition leading to use-after-free in the CanvasWebGL component allows attackers to execute arbitrary code, requiring users to update Firefox and Thunderbird.","user_interaction":"required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mozilla","cpe":[],"cvss":{"score":4.2,"severity":"medium","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-416","name":"Use After Free"},{"id":"CWE-362","name":"Concurrent Execution using Shared Resource with Improper Synchronization"}],"description":"Race condition, use-after-free in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Race condition, use-after-free in the Graphics: CanvasWebGL component","id":"CVE-2026-109719","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"use_after_free","year":"2026"},"n_packages":0,"n_references":6,"next":{"headline":"JIT miscompilation in the JavaScript: WebAssembly component","id":"CVE-2026-109720"},"packages":[],"prev":{"headline":"Use-after-free in the XML component","id":"CVE-2026-109718"},"products":["Firefox","Thunderbird"],"published":"2026-10-13","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":"2026-10-13","vendors":["Mozilla"]},"summary":"A race condition leading to use-after-free in the CanvasWebGL component allows attackers to execute arbitrary code, requiring users to update Firefox and Thunderbird.","url":"https://insights.sbomify.com/CVE-2026-109719/"}