What is GHSA-q842-gx74-cj48?

GHSA-q842-gx74-cj48 is a security advisory published by GitHub Security Advisories with Medium severity. Netty (io.netty:netty-codec-http) versions up to and including 4.1.137.Final and from 4.2.0.Final...

Which CVE IDs does GHSA-q842-gx74-cj48 cover?

GHSA-q842-gx74-cj48 covers the following CVE IDs: CVE-2026-100655. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-q842-gx74-cj48?

GHSA-q842-gx74-cj48 has a CVSS v3 base score of 7.5, published by GitHub Security Advisories.

GHSA-q842-gx74-cj48MediumCVSS 7.5

Netty (io.netty:netty-codec-http) versions up to and including 4.1.137.Final and from 4.2.0.Final...

Vendor

GitHub Security Advisories

Published

September 26, 2026

Last Modified

September 26, 2026

🔗 CVE IDs covered (1)

CVE-2026-100655 →

📋 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.

🔗 References (4)

https://github.com/netty/netty/security/advisories/GHSA-rmcw-9fcq-wjq7
https://nvd.nist.gov/vuln/detail/CVE-2026-100655
https://www.vulncheck.com/advisories/netty-before-4.1.138-final-denial-of-service-via-spdysessionhandler
https://github.com/advisories/GHSA-q842-gx74-cj48