CVE-2025-66372
| Severity | 2.8 Low CVSS 3.1 |
|---|---|
| Fixed in | 2.16.3 |
| Weakness | XML external entity (XXE) (CWE-611) |
| Published | 28 Nov 2025 |
| Updated | 8 Oct 2026 |
Description
Mustang before 2.16.3 allows exfiltrating files via XXE attacks.
Exploitation status
No public exploit
No exploit has been reported in the sources we check.
Exploitation status
- CISA KEV not listed
- VulnCheck KEV not listed
- CISA Vulnrichment exploitation: none
- Indexed PoC none indexed
- EPSS 0.13% chance in 30 days
Waratek protection
Waratek has a rule that blocks attacks on this vulnerability.
- Protection full XXE
- Action available security rule
- Review automated Inferred
- Record active
| Decided by | A vulnerability class already blocked by an ARMR security rule |
|---|---|
| Finding | Protected by Waratek's ARMR xxe security rule, which blocks this class of attack at the JVM level without a rule written for this CVE specifically. The CVE's weakness is CWE-611: XML External Entity Reference. |
| Candidate fix | https://github.com/ZUGFeRD/mustangproject/pull/725 : a pull request: the change under review |
How to mitigate CVE-2025-66372
Upgrade the affected software to 2.16.3 or later. Until you can, Waratek RASP blocks exploitation with its XXE rule. It runs inside the Java application, with no code changes.
Affected software and releases
Maven packages
Affected and fixed versions, from OSV.dev| Package | Introduced | Fixed | Last affected |
|---|---|---|---|
org.mustangproject:library |
0 | 2.16.3 |
unbounded |
org.mustangproject:validator |
0 | 2.16.3 |
unbounded |
References
Timeline
Timeline
| Published | 2025-11-28 | By the CVE Program. |
|---|---|---|
| NVD record modified | 2026-10-08 | NVD's own last-modified date for this record. |