CVE-2024-49761

Name: CVE-2024-49761
Creator: NVD / NIST
Published: 2024-10-28T15:15:05.157+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.6/10EPSS 1.43%

Last modified Jun 17, 2026

CVE-2024-49761 is a medium-severity vulnerability rated 6.6/10 on the CVSS scale. REXML is an XML toolkit for Ruby. The REXML gem before 3.3.9 has a ReDoS vulnerability when it parses an XML that has many digits between &# and x...; in a hex numeric character reference (&#x...;). EPSS estimates a 1.43% chance of exploitation in the next 30 days.

Description

REXML is an XML toolkit for Ruby. The REXML gem before 3.3.9 has a ReDoS vulnerability when it parses an XML that has many digits between &# and x...; in a hex numeric character reference (&#x...;). This does not happen with Ruby 3.2 or later. Ruby 3.1 is the only affected maintained Ruby. The REXML gem 3.3.9 or later include the patch to fix the vulnerability.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS 4.0

6.6/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

1.43%

69.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-1333

Affected Software

Vendor	Product	Versions
Ruby-Lang	Rexml	< 3.3.9
Netapp	Ontap Tools	10

References

https://github.com/ruby/rexml/commit/ce59f2eb1aeb371fe1643414f06618dbe031979fPatch
https://github.com/ruby/rexml/security/advisories/GHSA-2rxp-v6pw-ch6mThird Party Advisory
https://www.ruby-lang.org/en/news/2024/10/28/redos-rexml-cve-2024-49761Vendor Advisory
https://lists.debian.org/debian-lts-announce/2025/01/msg00011.html
https://security.netapp.com/advisory/ntap-20241227-0004/Third Party Advisory

Timeline

Published: Oct 28, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2024-49761?

How severe is CVE-2024-49761?

CVE-2024-49761 has a CVSS score of 6.6/10 (MEDIUM severity). The EPSS model estimates a 1.43% probability of exploitation in the next 30 days.

How do I fix CVE-2024-49761?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-49761?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST