{"id":"CVE-2026-100655","aliases":["DEBIAN-CVE-2026-100655","EUVD-2026-87749","GHSA-q842-gx74-cj48","GHSA-rmcw-9fcq-wjq7"],"status":"rejected","title":"Netty (io.netty:netty-codec-http) versions up to and including 4.1.137.Final and from 4.2.0.Final...","description":"This CVE ID has been rejected as a duplicate.","severity":{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","from":"ghsa"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-770"],"published":"2026-09-26T13:23:23Z","modified":"2026-09-29T09:00:09Z","affected":[{"source":"osv","ecosystem":"Debian:12","package":"netty","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:4.1.48-10","1:4.1.48-11","1:4.1.48-12","1:4.1.48-13","1:4.1.48-14","1:4.1.48-15","1:4.1.48-16","1:4.1.48-7","1:4.1.48-7+deb12u1","1:4.1.48-7+deb12u2","1:4.1.48-8","1:4.1.48-9"]},{"source":"osv","ecosystem":"Debian:13","package":"netty","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:4.1.48-10","1:4.1.48-10+deb13u1","1:4.1.48-11","1:4.1.48-12","1:4.1.48-13","1:4.1.48-14","1:4.1.48-15","1:4.1.48-16"]},{"source":"osv","ecosystem":"Debian:14","package":"netty","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:4.1.48-10","1:4.1.48-11","1:4.1.48-12","1:4.1.48-13","1:4.1.48-14","1:4.1.48-15","1:4.1.48-16"]}],"references":[{"url":"https://github.com/netty/netty/security/advisories/GHSA-rmcw-9fcq-wjq7","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-100655","tags":["advisory"]},{"url":"https://www.vulncheck.com/advisories/netty-before-4.1.138-final-denial-of-service-via-spdysessionhandler","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-q842-gx74-cj48"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100655.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-100655","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-100655","description":"This CVE ID has been rejected as a duplicate.","status":"rejected","published":"2026-09-26T13:23:23.988Z","modified":"2026-09-28T20:59:52.595Z","updated_at":"2026-11-02T14:20:06.925367Z"}],"euvd":[{"id":"EUVD-2026-87749","description":"This CVE ID has been rejected as a duplicate.","status":"published","published":"2026-09-26T13:23:23Z","modified":"2026-09-28T20:59:52Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T17:27:52.759804Z"}],"ghsa":[{"id":"GHSA-q842-gx74-cj48","title":"Netty (io.netty:netty-codec-http) versions up to and including 4.1.137.Final and from 4.2.0.Final...","description":"Netty (io.netty:netty-codec-http) versions up to and including 4.1.137.Final and from 4.2.0.Final through 4.2.17.Final accept an unlimited number of concurrent remote-initiated SPDY streams: SpdySessionHandler defaults localConcurrentStreams to Integer.MAX_VALUE and exposes no API to change it. A remote peer that opens a SPDY connection and sends millions of SYN_STREAM frames with FLAG_FIN=0 causes the server to allocate unbounded heap and direct memory, eventually triggering a JVM OutOfMemoryError and crashing the service. Fixed in 4.1.138.Final and 4.2.18.Final.","status":"published","published":"2026-09-26T15:31:18Z","modified":"2026-09-26T15:31:22Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T15:12:30.047516Z"}],"nvd":[{"id":"CVE-2026-100655","description":"Rejected reason: This CVE ID has been rejected as a duplicate.","status":"rejected","published":"2026-09-26T14:16:48.243Z","modified":"2026-09-28T22:17:30.12Z","updated_at":"2026-11-02T14:12:52.081323Z"}],"osv":[{"id":"CVE-2026-100655","title":"Netty before 4.1.138.Final Denial of Service via SpdySessionHandler","description":"Netty (io.netty:netty-codec-http) versions up to and including 4.1.137.Final and from 4.2.0.Final through 4.2.17.Final accept an unlimited number of concurrent remote-initiated SPDY streams: SpdySessionHandler defaults localConcurrentStreams to Integer.MAX_VALUE and exposes no API to change it. A remote peer that opens a SPDY connection and sends millions of SYN_STREAM frames with FLAG_FIN=0 causes the server to allocate unbounded heap and direct memory, eventually triggering a JVM OutOfMemoryError and crashing the service. Fixed in 4.1.138.Final and 4.2.18.Final.","status":"published","published":"2026-09-26T13:23:23.988Z","modified":"2026-09-29T03:30:47.780884908Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T15:44:53.490346Z"},{"id":"DEBIAN-CVE-2026-100655","status":"published","published":"2026-09-26T14:16:48.243Z","modified":"2026-09-29T09:00:09.278855479Z","updated_at":"2026-11-02T15:45:48.440897Z"}]}}