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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
References 5
https://access.redhat.com/errata/RHSA-2025:17606
secalert@redhat.com
https://access.redhat.com/errata/RHSA-2025:17613
secalert@redhat.com
https://access.redhat.com/errata/RHSA-2025:17693
secalert@redhat.com
https://access.redhat.com/security/cve/CVE-2025-10990
secalert@redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2398216
secalert@redhat.com