{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-16440 exists.","fix":"Upgrade to a fixed version.","what":"CVE-2026-16440 is a medium-severity denial of service vulnerability in Eclipse OpenJ9, published on 19 Aug 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-16440 and fix it if it is affected.\n\nWhat it is: CVE-2026-16440 is a medium-severity denial of service vulnerability in Eclipse OpenJ9, published on 19 Aug 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-16440 exists.\n\nAffected product: Eclipse OpenJ9. 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-2026-16440/ (Markdown: https://insights.sbomify.com/CVE-2026-16440/index.md)","id":"CVE-2026-16440","markdown":"https://insights.sbomify.com/CVE-2026-16440/index.md","name":"CVE-2026-16440","record":{"aliases":["GHSA-ch6r-v7rg-4jqx","GHSA-jxfm-5353-qwhv"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Java JVM library","requires_auth":"low_privilege","summary":"Attackers can cause a segmentation fault and crash the application by providing a crafted class file with deeply nested annotations.","user_interaction":"required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"eclipse","cpe":[],"cvss":{"score":5.7,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L","version":"4.0"},"cwes":[{"id":"CWE-674","name":"Uncontrolled Recursion"}],"description":"In Eclipse OpenJ9 versions up to 0.60, a crafted .class file with deeply nested annotations causes a segmentation fault.","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":"Denial of service in Eclipse OpenJ9","id":"CVE-2026-16440","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Eclipse OpenJ9 : Method resolution default method precedence failure","id":"CVE-2026-16441"},"packages":[],"prev":{"headline":"Eclipse OpenJ9 : Using -Xtrace to trace method arguments can lead to buffer underflow","id":"CVE-2026-16439"},"products":["Eclipse OpenJ9"],"published":"2026-08-19","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":"2026-08-19","vendors":["Eclipse Foundation"]},"summary":"Attackers can cause a segmentation fault and crash the application by providing a crafted class file with deeply nested annotations.","url":"https://insights.sbomify.com/CVE-2026-16440/"}