CVE-2024-49761

high

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.

References

Advisories
More

https://security.netapp.com/advisory/ntap-20241227-0004/

https://github.com/ruby/rexml/security/advisories/GHSA-2rxp-v6pw-ch6m

https://www.ruby-lang.org/en/news/2024/10/28/redos-rexml-cve-2024-49761

https://github.com/ruby/rexml/commit/ce59f2eb1aeb371fe1643414f06618dbe031979f

Details

Source: Mitre, NVD

Published: 2024-10-28

Updated: 2025-03-21

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High

CVSS v4

Base Score: 8.7

Vector: 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

Severity: High

EPSS

EPSS: 0.00235