CVE-2026-44891Disclosure(netty / netty)

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Netty is a network application framework for development of protocol servers and clients. Prior to 4.1.136.Final and 4.2.16.Final, io.netty.handler.codec.stomp.StompSubframeDecoder fails to limit the total number of headers or their cumulative size per frame, and the maxLineLength parameter only restricts individual header lines. An attacker can send a large number of short headers that are accumulated in memory inside DefaultStompHeadersSubframe until the JVM throws an OutOfMemoryError, causing denial of service for servers exposing a STOMP endpoint based on StompSubframeDecoder. This issue is fixed in versions 4.1.136.Final and 4.2.16.Final.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-400CWE-770

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • netty

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Vendors
Products
netty

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-07-15: 1Technical Details · 2026-07-15: 107-15
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
Full discourse1 post
  • DailyCVE@dailycve
    Disclosure

    🔴 Netty STOMP, Unbounded Headers DoS, #CVE-2026-44891 (High) -DC-Jul2026-969 https://dailycve.com/netty-stomp-unbounded-headers-dos-cve-2026-44891-high-dc-jul2026-969/

    Post summary

    The post announces a high‑severity denial‑of‑service vulnerability (CVE‑2026‑44891) in Netty STOMP due to unbounded headers, but provides no proofs of concept, exploits, or mitigation advice.

    0000039
    219 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appnettynetty---

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