{"schema_version":1,"title":"Meta Proxygen vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 6 vulnerabilities in Meta Proxygen: 4 in the last 7 days and 6 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-121737, was published on 11 November 2026. Nothing in the last four weeks, down from 2 vulnerabilities in the four before.","url":"https://junglewise.ai/threats/technologies/meta-proxygen","json_url":"https://junglewise.ai/threats/technologies/meta-proxygen.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/meta-proxygen","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","thin":false,"counts":{"high":0,"all_time":6,"critical":0,"exploited":0,"last_7_days":4,"last_30_days":4,"last_90_days":6,"last_365_days":6},"latest":[{"cve":"CVE-2026-121737","slug":"cve-2026-121737-when-a-remote-unauthenticated-http-1-1-client-pipelined-the","title":"Meta proxygen use-after-free in HTTP session handling","severity":"info","exploited":false,"published_at":"2026-11-11T17:17:17.337+00:00","url":"https://junglewise.ai/threats/cve-2026-121737-when-a-remote-unauthenticated-http-1-1-client-pipelined-the"},{"cve":"CVE-2026-119237","slug":"cve-2026-119237-in-proxygen-s-http-3-session-when-a-headers-block-referenced","title":"Meta proxygen HTTP/3 denial of service in QPACK handling","severity":"info","exploited":false,"published_at":"2026-11-11T17:17:16.917+00:00","url":"https://junglewise.ai/threats/cve-2026-119237-in-proxygen-s-http-3-session-when-a-headers-block-referenced"},{"cve":"CVE-2026-119235","slug":"cve-2026-119235-proxygen-s-qpack-decoder-enforced-its-size-limit-on-a-string","title":"proxygen QPACK decoder unbounded buffering denial of service","severity":"info","exploited":false,"published_at":"2026-11-11T17:17:16.663+00:00","url":"https://junglewise.ai/threats/cve-2026-119235-proxygen-s-qpack-decoder-enforced-its-size-limit-on-a-string"},{"cve":"CVE-2026-119233","slug":"cve-2026-119233-proxygen-s-http-3-codec-buffered-an-incomplete-non-data-frame","title":"Meta proxygen HTTP/3 denial of service in frame buffering","severity":"info","exploited":false,"published_at":"2026-11-11T17:17:16.39+00:00","url":"https://junglewise.ai/threats/cve-2026-119233-proxygen-s-http-3-codec-buffered-an-incomplete-non-data-frame"},{"cve":"CVE-2026-91096","slug":"cve-2026-91096-in-proxygen-from-v2024-10-28-00-until-v2026-09-28-00","title":"Meta proxygen use-after-free in stream cleanup","severity":"info","exploited":false,"published_at":"2026-09-28T21:17:19.313+00:00","url":"https://junglewise.ai/threats/cve-2026-91096-in-proxygen-from-v2024-10-28-00-until-v2026-09-28-00"},{"cve":"CVE-2026-91095","slug":"cve-2026-91095-in-proxygen-from-v2024-10-28-00-until-v2026-09-28-00-the","title":"Meta proxygen use-after-free in WebTransport stream handling","severity":"info","exploited":false,"published_at":"2026-09-28T21:17:19.17+00:00","url":"https://junglewise.ai/threats/cve-2026-91095-in-proxygen-from-v2024-10-28-00-until-v2026-09-28-00-the"}],"weekly":[{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-28","critical":0,"exploited":0,"vulnerabilities":2},{"week":"2026-10-05","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-12","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-19","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-26","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-11-02","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-11-09","critical":0,"exploited":0,"vulnerabilities":4}],"related":[{"name":"Meta React Server Components (Parcel)","slug":"react-server-components-parcel","vulnerabilities":11,"url":"https://junglewise.ai/threats/technologies/react-server-components-parcel"},{"name":"Meta React Server Components (Turbopack)","slug":"react-server-components-turbopack","vulnerabilities":11,"url":"https://junglewise.ai/threats/technologies/react-server-components-turbopack"},{"name":"Meta React Server Components (Webpack)","slug":"react-server-components-webpack","vulnerabilities":11,"url":"https://junglewise.ai/threats/technologies/react-server-components-webpack"},{"name":"Meta Hermes","slug":"hermes","vulnerabilities":4,"url":"https://junglewise.ai/threats/technologies/hermes"},{"name":"Meta WhatsApp for iOS","slug":"whatsapp-for-ios","vulnerabilities":3,"url":"https://junglewise.ai/threats/technologies/whatsapp-for-ios"}],"technology":{"hub":true,"name":"Meta Proxygen","slug":"meta-proxygen","vendor":{"hub":true,"name":"Meta","slug":"meta","url":"https://junglewise.ai/threats/vendors/meta"},"aliases":[],"category":"library","description":"Meta's C++ library for building high-performance HTTP services and proxies.","url":"https://junglewise.ai/threats/technologies/meta-proxygen"},"most_severe":[{"cve":"CVE-2026-121737","slug":"cve-2026-121737-when-a-remote-unauthenticated-http-1-1-client-pipelined-the","title":"Meta proxygen use-after-free in HTTP session handling","severity":"info","exploited":false,"published_at":"2026-11-11T17:17:17.337+00:00","url":"https://junglewise.ai/threats/cve-2026-121737-when-a-remote-unauthenticated-http-1-1-client-pipelined-the"},{"cve":"CVE-2026-119237","slug":"cve-2026-119237-in-proxygen-s-http-3-session-when-a-headers-block-referenced","title":"Meta proxygen HTTP/3 denial of service in QPACK handling","severity":"info","exploited":false,"published_at":"2026-11-11T17:17:16.917+00:00","url":"https://junglewise.ai/threats/cve-2026-119237-in-proxygen-s-http-3-session-when-a-headers-block-referenced"},{"cve":"CVE-2026-119235","slug":"cve-2026-119235-proxygen-s-qpack-decoder-enforced-its-size-limit-on-a-string","title":"proxygen QPACK decoder unbounded buffering denial of service","severity":"info","exploited":false,"published_at":"2026-11-11T17:17:16.663+00:00","url":"https://junglewise.ai/threats/cve-2026-119235-proxygen-s-qpack-decoder-enforced-its-size-limit-on-a-string"},{"cve":"CVE-2026-119233","slug":"cve-2026-119233-proxygen-s-http-3-codec-buffered-an-incomplete-non-data-frame","title":"Meta proxygen HTTP/3 denial of service in frame buffering","severity":"info","exploited":false,"published_at":"2026-11-11T17:17:16.39+00:00","url":"https://junglewise.ai/threats/cve-2026-119233-proxygen-s-http-3-codec-buffered-an-incomplete-non-data-frame"},{"cve":"CVE-2026-91096","slug":"cve-2026-91096-in-proxygen-from-v2024-10-28-00-until-v2026-09-28-00","title":"Meta proxygen use-after-free in stream cleanup","severity":"info","exploited":false,"published_at":"2026-09-28T21:17:19.313+00:00","url":"https://junglewise.ai/threats/cve-2026-91096-in-proxygen-from-v2024-10-28-00-until-v2026-09-28-00"},{"cve":"CVE-2026-91095","slug":"cve-2026-91095-in-proxygen-from-v2024-10-28-00-until-v2026-09-28-00-the","title":"Meta proxygen use-after-free in WebTransport stream handling","severity":"info","exploited":false,"published_at":"2026-09-28T21:17:19.17+00:00","url":"https://junglewise.ai/threats/cve-2026-91095-in-proxygen-from-v2024-10-28-00-until-v2026-09-28-00-the"}],"generated_at":"2026-11-13T03:07:00.155039+00:00"}