VulnSocial

CVE-2026-93491Patch

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

A flaw was found in Netty's HttpServerCodec. A remote, unauthenticated attacker can exploit this vulnerability by pipelining HTTP/1.1 requests on a single connection and withholding reads. This action causes the methodOverflowQueue to grow without limit, leading to unbounded heap memory consumption and a denial of service due to memory exhaustion.

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0.5/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-770

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Threat summary

  • Patch or workaround signal is available
  • 1 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-09-20: 1Patch / Workaround · 2026-09-20: 1Technical Details · 2026-09-20: 109-20
Signal classification1 categories
Patch
1100.0%
Full discourse1 post
  • DFIR Lab@DFIR_Lab
    Patch

    🚨 HIGH Severity CVE-2026-93491 Netty HttpServerCodec flaw (CVSS 7.5) allows remote attackers to cause DoS via HTTP/1.1 request pipelining, leading to unbounded memory consumption. Patch immediately. #CVE #Vulnerability #PatchNow #ThreatIntel https://t.co/9pARGLTuXH

    Post summary

    The tweet discloses a high-severity DoS vulnerability in Netty (CVE-2026-93491) with technical details and CVSS score, and explicitly urges users to 'Patch immediately' as the primary call to action.

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    139 followersView on X

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