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TI-2024-27968 Aliases CVE-2024-41946GHSA-5866-49gr-22v4

REXML DoS vulnerability

Priority MEDIUM 41CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 8 fixed, 4 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-400.

Summary

REXML is an XML toolkit for Ruby. The REXML gem 3.3.2 has a DoS vulnerability when it parses an XML that has many entity expansions with SAX2 or pull parser API. The REXML gem 3.3.3 or later include the patch to fix the vulnerability.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01192 68th percentileScored 2026-11-07
Fix Partial rexml (ruby): 3.3.3rexml (RubyGems): 3.3.3Red Hat: 7 advisoriesRed Hat: 8 fixed, 4 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
rubyrexmlbefore 3.3.33.3.3Patch availableCNA
—rexml (RubyGems)before 3.3.33.3.3Patch availableGHSA-5866-49gr-22v4
  • rexml Vendorruby Affected before 3.3.3 Fixed in 3.3.3 Patch available CNA
  • rexml (RubyGems) Vendor— Affected before 3.3.3 Fixed in 3.3.3 Patch available GHSA-5866-49gr-22v4

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:ruby-lang:rexml:*:*:*:*:*:ruby:*:*before 3.3.3Vulnerableruby
  • cpe:2.3:a:ruby-lang:rexml:*:*:*:*:*:ruby:*:* Versions before 3.3.3 Vulnerable ·ruby

Remediation

  • Fix · CNA rexml (ruby) Fixed in 3.3.3
  • Fix · GHSA-5866-49gr-22v4 rexml (RubyGems) Fixed in 3.3.3 Advisory →

Red Hat 7 advisories

  • RHSA-2025:4488 Released 2025-05-06 · Red Hat rating Moderate
    ruby:3.1 security update
    • Red Hat Enterprise Linux AppStream (v. 9) ruby-3.1.7-146.module+el9.5.0+23003+a4c328ce.aarch64::ruby:3.1, ruby-3.1.7-146.module+el9.5.0+23003+a4c328ce.i686::ruby:3.1, ruby-3.1.7-146.module+el9.5.0+23003+a4c328ce.ppc64le::ruby:3.1 +47
  • RHSA-2025:4063 Released 2025-04-23 · Red Hat rating Moderate
    ruby:3.1 security update
    • Red Hat Enterprise Linux AppStream (v. 8) ruby-3.1.7-145.module+el8.10.0+23011+f9d508f8.aarch64::ruby:3.1, ruby-3.1.7-145.module+el8.10.0+23011+f9d508f8.i686::ruby:3.1, ruby-3.1.7-145.module+el8.10.0+23011+f9d508f8.ppc64le::ruby:3.1 +47
  • RHSA-2024:6784 Released 2024-09-18 · Red Hat rating Moderate
    ruby:3.3 security update
    • Red Hat Enterprise Linux AppStream (v. 8) ruby-3.3.5-3.module+el8.10.0+22271+6a48b0b9.aarch64::ruby:3.3, ruby-3.3.5-3.module+el8.10.0+22271+6a48b0b9.i686::ruby:3.3, ruby-3.3.5-3.module+el8.10.0+22271+6a48b0b9.ppc64le::ruby:3.3 +47
Show 4 more Red Hat advisories
  • RHSA-2024:6785 Released 2024-09-18 · Red Hat rating Moderate
    ruby:3.3 security update
    • Red Hat Enterprise Linux AppStream (v. 9) ruby-3.3.5-3.module+el9.4.0+22273+463af10f.aarch64::ruby:3.3, ruby-3.3.5-3.module+el9.4.0+22273+463af10f.i686::ruby:3.3, ruby-3.3.5-3.module+el9.4.0+22273+463af10f.ppc64le::ruby:3.3 +47
  • RHSA-2024:6703 Released 2024-09-16 · Red Hat rating Moderate
    pcs security update
    • Red Hat Enterprise Linux High Availability EUS (v.8.8) pcs-0.10.15-4.el8_8.3, pcs-snmp-0.10.15-4.el8_8.3
    • Red Hat Enterprise Linux Resilient Storage EUS (v.8.8) pcs-0.10.15-4.el8_8.3, pcs-snmp-0.10.15-4.el8_8.3
  • RHSA-2024:6702 Released 2024-09-16 · Red Hat rating Moderate
    pcs security update
    • Red Hat Enterprise Linux High Availability E4S (v.8.6) pcs-0.10.12-6.el8_6.6, pcs-snmp-0.10.12-6.el8_6.6
    • Red Hat Enterprise Linux High Availability TUS (v.8.6) pcs-0.10.12-6.el8_6.6, pcs-snmp-0.10.12-6.el8_6.6
  • RHSA-2024:6670 Released 2024-09-16 · Red Hat rating Moderate
    pcs security update
    • Red Hat Enterprise Linux HighAvailability (v. 8) pcs-0.10.18-2.el8_10.2, pcs-snmp-0.10.18-2.el8_10.2
    • Red Hat Enterprise Linux ResilientStorage (v. 8) pcs-0.10.18-2.el8_10.2, pcs-snmp-0.10.18-2.el8_10.2

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 8AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 9AffectedNo fix yet: Fix deferred
Red Hat OpenStack Platform 16.1AffectedNo fix yet: Fix deferred
Red Hat Satellite 6AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2024:6784, RHSA-2025:4063
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2024:6785, RHSA-2025:4488
Red Hat Enterprise Linux High Availability E4S (v.8.6)Fixed RHSA-2024:6702
Red Hat Enterprise Linux High Availability EUS (v.8.8)Fixed RHSA-2024:6703
Red Hat Enterprise Linux High Availability TUS (v.8.6)Fixed RHSA-2024:6702
Red Hat Enterprise Linux HighAvailability (v. 8)Fixed RHSA-2024:6670
Red Hat Enterprise Linux Resilient Storage EUS (v.8.8)Fixed RHSA-2024:6703
Red Hat Enterprise Linux ResilientStorage (v. 8)Fixed RHSA-2024:6670
Not affected: 3 products
  • Red Hat Enterprise Linux 10
  • Red Hat OpenStack Platform 16.2
  • Red Hat OpenStack Platform 17.1

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-41946
  2. 2026-10-03 Alias added: GHSA-5866-49gr-22v4

References

Patch 1

Advisory 3

Other 5

  • TI-2024-27475 REXML DoS vulnerability CVSS 3.1HIGH 7.5
  • TI-2021-09890 The REXML gem before 3.2.5 in Ruby before 2.6.7, 2.7.x before 2.7.3, and 3.x before 3.0.1… CVSS 3.1HIGH 7.5
  • TI-2024-33228 REXML ReDoS vulnerability CVSS 4.0MEDIUM 6.6
  • TI-2024-23250 REXML contains a denial of service vulnerability CVSS 3.1MEDIUM 5.3
  • TI-2024-29047 REXML denial of service vulnerability CVSS 3.1MEDIUM 5.9
  • TI-2024-26802 Denial of service in REXML CVSS 3.1MEDIUM 4.3
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences