{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-31911 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-31911 is a medium-severity denial of service vulnerability in The Tcpdump Group libpcap, published on 5 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-31911 and fix it if it is affected.\n\nWhat it is: CVE-2026-31911 is a medium-severity denial of service vulnerability in The Tcpdump Group libpcap, published on 5 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-31911 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-2026-31911/ (Markdown: https://insights.sbomify.com/CVE-2026-31911/index.md)","id":"CVE-2026-31911","markdown":"https://insights.sbomify.com/CVE-2026-31911/index.md","name":"CVE-2026-31911","record":{"aliases":["ALPINE-CVE-2026-31911","AZL-99732","AZL-99930","BELL-CVE-2026-31911","DEBIAN-CVE-2026-31911","ECHO-a302-f1dc-85d5","GHSA-r2j4-mj7w-mgg2","UBUNTU-CVE-2026-31911"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Packet capture library","requires_auth":"low_privilege","summary":"A crafted BPF filter program can cause libpcap to call abort(), terminating the process and causing a denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Tcpdump","cpe":[],"cvss":{"score":5.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-617","name":"Reachable Assertion"}],"description":"libpcap BPF interpreter calls abort() if it encounters a BPF instruction that has an invalid opcode.  In particular uncommon use cases a crafted filter program can terminate the OS process.","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":"abort() in libpcap before 1.10.7 on an invalid BPF opcode","id":"CVE-2026-31911","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":"OOBR in libpcap before 1.10.7","id":"CVE-2026-31912"},"packages":[],"prev":{"headline":"Apache OFBiz: Improper Input Validation in UI Factory Classes Leads to SSRF and Blind File Access","id":"CVE-2026-31910"},"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 crafted BPF filter program can cause libpcap to call abort(), terminating the process and causing a denial of service.","url":"https://insights.sbomify.com/CVE-2026-31911/"}