CVE-2024-41123

REXML DoS vulnerability

HIGH
7.5
CVSS Score
Published: August 1, 2024 at 02:18 PM UTC
Updated: June 17, 2026 at 07:47 AM UTC
2 products affected across 2 vendorsRexmlREXML

Using rexml by ruby?

Get instant alerts when new vulnerabilities affect rexml - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.5
Exploit prediction
EPSS 1%
SSVC
No known exploit

Description

REXML is an XML toolkit for Ruby. The REXML gem before 3.3.2 has some DoS vulnerabilities when it parses an XML that has many specific characters such as whitespace character, `>]` and `]>`. The REXML gem 3.3.3 or later include the patches to fix these vulnerabilities.

Affected

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

v < 3.2.7v < 3.3.33.2.8 ≤ v < 3.3.2
Affected range stops below 3.2.7, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.3.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.3.3, so it looks safe — our inference, not a vendor statement
v < 3.3.3
Affected range stops below 3.3.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

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

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-400

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card