CVE-2022-24823

Local Information Disclosure Vulnerability in io.netty:netty-codec-http

MEDIUM
5.5
CVSS Score
Published: May 6, 2022 at 12:05 PM UTC
Updated: June 17, 2026 at 04:32 AM UTC
5 products affected across 3 vendorsActive IQ Unified ManagerOnCommand Workflow AutomationSnapCenter

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Severity
MEDIUM5.5
Exploit prediction
EPSS 1%
SSVC
PoC

Description

Netty is an open-source, asynchronous event-driven network application framework. The package `io.netty:netty-codec-http` prior to version 4.1.77.Final contains an insufficient fix for CVE-2021-21290. When Netty's multipart decoders are used local information disclosure can occur via the local system temporary directory if temporary storing uploads on the disk is enabled. This only impacts applications running on Java version 6 and lower. Additionally, this vulnerability impacts code running on Unix-like systems, and very old versions of Mac OSX and Windows as they all share the system temporary directory between all users. Version 4.1.77.Final contains a patch for this vulnerability. As a workaround, specify one's own `java.io.tmpdir` when starting the JVM or use DefaultHttpDataFactory.setBaseDir(...) to set the directory to something that is only readable by the current user.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions
v ≤ 4.1.76.Finalv < 4.1.77
Affected range stops below 4.1.77, so it looks safe — our inference, not a vendor statement

References (5)

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUMGitHub_M
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-378CWE-379CWE-668

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