VulnerabilityModified
CVE-2024-49761
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...;).
MEDIUM 6.6EPSS 1.42%
Does this matter?
Lower severity and a low EPSS score (1.42%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 4.0
- 6.6 MEDIUMCVSS: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/M
- EPSS
- 1.42% probability · 71th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-1333
- Affected
- ruby-lang/rexml · netapp/ontap tools
- Source
- security-advisories@github.com
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.