{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-18313 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-18313 is a medium-severity denial of service vulnerability in The Tcpdump Group libpcap, published on 5 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-18313 and fix it if it is affected.\n\nWhat it is: CVE-2026-18313 is a medium-severity denial of service vulnerability in The Tcpdump Group libpcap, published on 5 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-18313 in the wild and no public exploit code.\n\nAffected product: The Tcpdump Group libpcap. 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-2026-18313/ (Markdown: https://insights.sbomify.com/CVE-2026-18313/index.md)","id":"CVE-2026-18313","markdown":"https://insights.sbomify.com/CVE-2026-18313/index.md","name":"CVE-2026-18313","record":{"aliases":["AZL-99735","DEBIAN-CVE-2026-18313","ECHO-0f8b-361a-a003","GHSA-f2rh-ff9r-fh4j","UBUNTU-CVE-2026-18313"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"libpcap network library","requires_auth":"low_privilege","summary":"A malicious client can cause rpcapd to leak memory rapidly, leading to denial of service in applications using libpcap.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Tcpdump","cpe":[],"cvss":{"score":4.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"cwes":[{"id":"CWE-401","name":"Missing Release of Memory after Effective Lifetime"}],"description":"rpcapd can allocate up to 65536 bytes per each RPCAP_MSG_UPDATEFILTER_REQ or RPCAP_MSG_STARTCAP_REQ message received from the client, but it never frees the memory, so it leaks memory even under normal use.  A malicious client can cause the server to leak memory substantially faster.","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":"rpcapd memory leak in libpcap before 1.10.7","id":"CVE-2026-18313","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Auth bypass in TrueBooker – Appointment Booking and Scheduler System","id":"CVE-2026-18315"},"packages":[],"prev":{"headline":"CVE-2026-18312","id":"CVE-2026-18312"},"products":["libpcap"],"published":"2026-09-05","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":"2026-09-08","vendors":["The Tcpdump Group"]},"summary":"A malicious client can cause rpcapd to leak memory rapidly, leading to denial of service in applications using libpcap.","url":"https://insights.sbomify.com/CVE-2026-18313/"}