CVE-2025-10990

HIGH

REXML - Regular Expression Denial of Service via Hex Numeric Character Reference Parsing

Title source: llm

Description

A flaw was found in REXML. A remote attacker could exploit inefficient regular expression (regex) parsing when processing hex numeric character references (&#x...;) in XML documents. This could lead to a Regular Expression Denial of Service (ReDoS), impacting the availability of the affected component. This issue is the result of an incomplete fix for CVE-2024-49761.

References (8)

Core 8

Core References

Vendor Advisory vendor-advisory x_refsource_redhat

https://access.redhat.com/errata/RHSA-2025:17606

Vendor Advisory vendor-advisory x_refsource_redhat

https://access.redhat.com/errata/RHSA-2025:17613

Vendor Advisory vendor-advisory x_refsource_redhat

https://access.redhat.com/errata/RHSA-2025:17693

Vendor Advisory vdb-entry x_refsource_redhat

https://access.redhat.com/security/cve/CVE-2025-10990

Vendor Advisory issue-tracking x_refsource_redhat

https://bugzilla.redhat.com/show_bug.cgi?id=2398216

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

View Patch ZIP pw:eip

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/

Scores

CVSS v3 7.5

EPSS 0.0047

EPSS Percentile 38.1%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

CWE

CWE-1333

Status published

Products (5)

Red Hat/Red Hat Satellite 6.16 for RHEL 8 0:8.8.1-3.el8sat

Red Hat/Red Hat Satellite 6.16 for RHEL 9 0:8.8.1-3.el9sat

Red Hat/Red Hat Satellite 6.17 for RHEL 9 0:8.8.1-3.el9sat

Red Hat/Satellite Client 6 for RHEL 8 0:7.34.0-4.el8sat

Red Hat/Satellite Client 6 for RHEL 9 0:7.34.0-4.el9sat

Published Feb 27, 2026

Tracked Since Feb 27, 2026