Security Bulletin: IBM DevOps Deploy / IBM UrbanCode Deploy (UCD) is susceptible to a Request/Response Smuggling vuln in Netty (CVE-2026-59898)

Summary Netty is used by IBM DevOps Deploy / IBM UrbanCode Deploy UCD as part of the server-agent communication systems. CVE-2026-59898. Vulnerability Details CVEID:CVE-2026-59898 DESCRIPTION: Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.136.Final an...

CVE-2026-59898

creationtimestamp| type| source ---|---|--- 2026-08-10 13:20:13+00:00| seen| https://bsky.app/profile/o2cloud.bsky.social/post/3msq6vheark2o 2026-08-13 08:45:08+00:00| seen| https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-0991 2026-09-20 05:20:11+00:00| seen|...

UBUNTU-CVE-2026-59898

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.136.Final and 4.2.16.Final, ab attacker can force WebSocket upgrade via the lax V07 or V08 handshaker by sending Sec-WebSocket-Version: 7 and omitting Connection: Upgrade / Upgrade: websocket headers,...

CVE-2026-59898 Netty: WebSockets V07/V08 handshaker missing Connection/Upgrade validation

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.136.Final and 4.2.16.Final, ab attacker can force WebSocket upgrade via the lax V07 or V08 handshaker by sending Sec-WebSocket-Version: 7 and omitting Connection: Upgrade / Upgrade: websocket headers,...

Linux Distros Unpatched Vulnerability : CVE-2026-59898

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.136.Final and 4.2.16.Final, ab attacker can force WebSocket upgrade...

SUSE CVE-2026-59898

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.136.Final and 4.2.16.Final, ab attacker can force WebSocket upgrade via the lax V07 or V08 handshaker by sending Sec-WebSocket-Version: 7 and omitting Connection: Upgrade / Upgrade: websocket headers,...

ac.intave:cloud-protocol (>=0.0.1, <=0.0.11), africa.absa:inception-application (>=1.0.0, <=1.2.0) +43708 more potentially affected by CVE-2026-59898 via io.netty:netty-codec-http (>=4.0.0.alpha1, <=4.1.135.final)

io.netty:netty-codec-http MAVEN version =4.0.0.alpha1, =0.0.1, =1.0.0, =0.1.0-alpha.2, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.3, =0.1.0-alpha.2, =0.1.0, =0.1.0, =0.2.0 and more Source cves:...

ai.catboost:catboost-spark_4.1_2.13 (1.2.10), ai.fastllm:agent-bridge_3 (>=0.3.0, <=0.5.7) +5881 more potentially affected by CVE-2026-59898 via io.netty:netty-codec-http (>=4.2.0.final, <=4.2.15.final)

io.netty:netty-codec-http MAVEN version =4.2.0.final, =0.3.0, =0.3.0, =0.3.0, =0.3.0, =0.3.0, =0.1.0, =0.1.0, =4.13.5, =4.9.0, =4.9.0, =4.5.0, =4.6.0 and more Source cves: CVE-2026-59898 Source advisory: SNYK:JAVA-IONETTY-18233107...