{"id":"CVE-2026-91018","aliases":["DEBIAN-CVE-2026-91018","EUVD-2026-84864","GHSA-rmx4-24pf-8x6h","UBUNTU-CVE-2026-91018"],"status":"published","title":"Double Free in lwIP (lightweight IP)","description":"lwIP (Lightweight IP) has a double free vulnerability, which could crash the system, cause a DoS, memory corruption, or allow code execution on the victim 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api"}],"references":[{"url":"https://cgit.git.savannah.gnu.org/cgit/lwip.git","tags":["report"]},{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-26-265-02","tags":["report"]},{"url":"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-265-02.json","tags":["report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-91018"},{"url":"https://github.com/advisories/GHSA-rmx4-24pf-8x6h"},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-91018","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-91018","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-91018","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-91018","title":"Double Free in lwIP (lightweight IP)","description":"lwIP (Lightweight IP) has a double free vulnerability, which could crash the system, cause a DoS, memory corruption, or allow code execution on the victim 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