CVE-2026-93566

MEDIUM
MEDIUM Priority: 0.04 BB Relevance: 73/100
Published: 2026-09-18 Modified: 2026-11-06 First seen: 2026-11-06 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: Low
I: Low
A: None

Description

A flaw was found in Netty. A remote attacker could exploit this by sending a specially crafted HTTP request that includes control characters within the chunk-size line. This bypasses the intended strict validation, allowing the attacker to inject arbitrary HTTP requests. This vulnerability can lead to HTTP request smuggling, potentially resulting in information disclosure or other unauthorized actions.

Weakness Classification (1)

References & Advisories (10)

https://access.redhat.com/errata/RHSA-2026:69440
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:69470
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:83612
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:95760
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:95761
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:95759
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:95762
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:95887
vendor-advisory x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2536954
issue-tracking x_refsource_REDHAT

Bug Bounty Relevance

73 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

6.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

EPSS — Exploitation Probability

0.58%
Raw Score 0.005780
Percentile 48.1%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00578
2026-11-12
0.00578
2026-11-10
0.00578
2026-11-09
0.00578
2026-11-08
0.00578
2026-11-07
0.00578
2026-11-06
0.00479
2026-11-05
0.00479

Intelligence Sources

mitre ref →
nvd ref →