{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-116540 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-116540 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-116540 is a high-severity vulnerability in netty-tcnative, published on 26 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-116540 and fix it if it is affected.\n\nWhat it is: CVE-2026-116540 is a high-severity vulnerability in netty-tcnative, published on 26 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-116540 in the wild and no public exploit code.\n\nAffected product: netty-tcnative. 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-2026-116540/ (Markdown: https://insights.sbomify.com/CVE-2026-116540/index.md)","id":"CVE-2026-116540","markdown":"https://insights.sbomify.com/CVE-2026-116540/index.md","name":"CVE-2026-116540","record":{"aliases":["DEBIAN-CVE-2026-116540","GHSA-fgcj-53j7-r6vq","GHSA-mmc8-vg2v-fvvw","UBUNTU-CVE-2026-116540"],"analysis":null,"analysis_generated_by":null,"assigner":"VulnCheck","cpe":[],"cvss":{"score":8.2,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-416","name":"Use After Free"}],"description":"netty-tcnative 2.0.66.Final before 2.0.84.Final built against OpenSSL 3.x contains a use-after-free vulnerability in ssl_tlsext_ticket_key_cb during session ticket key rotation. Remote clients performing TLS handshakes while setSessionTicketKeys0 frees the shared key array cause OpenSSL to read freed HMAC keys, crashing or corrupting ticket processing.","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":"netty-tcnative 2.0.66.Final before 2.0.84.Final Use-After-Free in Session Ticket Callback","id":"CVE-2026-116540","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":6,"next":{"headline":"netty-tcnative before 2.0.84.Final Denial of Service via BIO Write Overcount","id":"CVE-2026-116541"},"packages":[],"prev":{"headline":"Netty netty-tcnative before 2.0.84.Final Heap Buffer Overflow via OpenSSL BIO","id":"CVE-2026-116539"},"products":["netty-tcnative"],"published":"2026-10-26","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":"2026-10-26","vendors":["netty"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-116540/"}