CVE-2025-10990
A remote attacker could exploit inefficient regular expression (regex) parsing when processing hex numeric character references (&#x...;) in XML documents.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.47%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.47% probability · 39th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-1333
- Source
- secalert@redhat.com
References
- https://access.redhat.com/errata/RHSA-2025:17606
- https://access.redhat.com/errata/RHSA-2025:17613
- https://access.redhat.com/errata/RHSA-2025:17693
- https://access.redhat.com/security/cve/CVE-2025-10990
- https://bugzilla.redhat.com/show_bug.cgi?id=2398216
- https://github.com/ruby/rexml/commit/ce59f2eb1aeb371fe1643414f06618dbe031979f
- 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/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.