{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2018-6346 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2018-6346 yet. Limit exposure of the affected software until one is available.","what":"CVE-2018-6346 is a high-severity denial of service vulnerability in Facebook Proxygen, published on 31 Dec 2018. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2018-6346 and fix it if it is affected.\n\nWhat it is: CVE-2018-6346 is a high-severity denial of service vulnerability in Facebook Proxygen, published on 31 Dec 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2018-6346 in the wild and no public exploit code.\n\nAffected product: Facebook Proxygen. 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-2018-6346/ (Markdown: https://insights.sbomify.com/CVE-2018-6346/index.md)","id":"CVE-2018-6346","markdown":"https://insights.sbomify.com/CVE-2018-6346/index.md","name":"CVE-2018-6346","record":{"aliases":["GHSA-gvqg-4vgr-vq39"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Proxygen HTTP library","requires_auth":"none","summary":"Attackers can cause a denial of service in Proxygen by sending invalid HTTP2 priority settings with circular dependencies.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"facebook","cpe":[{"product":"proxygen","vendor":"proxygen_project"}],"cvss":{"score":7.5,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-388","name":null},{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"A potential denial-of-service issue in the Proxygen handling of invalid HTTP2 priority settings (specifically a circular dependency). This affects Proxygen prior to v2018.12.31.00.","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":"Denial of service in Proxygen","id":"CVE-2018-6346","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2018"},"n_packages":0,"n_references":1,"next":{"headline":"Denial of service in Proxygen","id":"CVE-2018-6347"},"packages":[],"prev":{"headline":"Memory corruption in HHVM","id":"CVE-2018-6345"},"products":["Proxygen"],"published":"2018-12-31","related":[{"cvss_score":9.8,"headline":"Other in Facebook Proxygen before 2015-11-09","id":"CVE-2015-7264","kev_date_added":null,"published":"2017-04-10"},{"cvss_score":7.5,"headline":"Denial of service in Proxygen","id":"CVE-2018-6347","kev_date_added":null,"published":"2018-12-31"},{"cvss_score":7.5,"headline":"Security feature bypass in Facebook Proxygen before 2015-11-09","id":"CVE-2015-7263","kev_date_added":null,"published":"2017-04-10"},{"cvss_score":7.5,"headline":"Security feature bypass in Facebook Proxygen before 2015-11-09","id":"CVE-2015-7265","kev_date_added":null,"published":"2017-04-10"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-05-06","vendors":["Facebook"]},"summary":"Attackers can cause a denial of service in Proxygen by sending invalid HTTP2 priority settings with circular dependencies.","url":"https://insights.sbomify.com/CVE-2018-6346/"}