WaratekVRT Sign in

CVE-2026-44618 Apache CXF

Affected softwareApache CXF
Severity5.3 Medium CVSS 3.1
Fixed in4.2.1, 4.1.6, 3.6.11
WeaknessXML external entity (XXE) (CWE-611)
Published22 May 2026
Updated23 Jul 2026

Description

Insecure XML parser configuration in Apache CXF's WS-Transfer module may allow attackers to perform XXE attacks. Users are recommended to upgrade to versions 4.2.1, 4.1.6 or 3.6.11, which fix this issue.

Exploitation status

No public exploit

No exploit has been reported in the sources we check.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment exploitation: none
  • Indexed PoC none indexed
  • EPSS 0.31% chance in 30 days

Waratek protection

Protected by Waratek

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.

How to mitigate CVE-2026-44618

Upgrade Apache CXF to a release that fixes it: 4.2.1, 4.1.6 or 3.6.11. Until you can, Waratek RASP blocks exploitation with its XXE rule. It runs inside the Java application, with no code changes.

Waratek RASP Runtime protection for Java applications

Affected software and releases

Maven packages

Affected and fixed versions, from OSV.dev
PackageIntroducedFixedLast affected
org.apache.cxf:cxf-rt-ws-transfer 4.2.0 4.2.1 unbounded
org.apache.cxf:cxf-rt-ws-transfer 4.1.0 4.1.6 unbounded
org.apache.cxf:cxf-rt-ws-transfer 0 3.6.11 unbounded

Products and versions

2 products, 6 version entries
SourceVendorProductSchemeAffected versions
nvd apache cxf generic < 3.6.11 · ≥ 4.0.0 and < 4.1.6 · 4.2.0
osv org.apache.cxf cxf-rt-ws-transfer generic < 3.6.11 · ≥ 4.1.0 and < 4.1.6 · ≥ 4.2.0 and < 4.2.1

References

URLTags
https://github.com/apache/cxf PACKAGE
https://lists.apache.org/thread/c7vb015f8ljmjl44030mn0yfq71f7sd7 WEB
http://www.openwall.com/lists/oss-security/2026/05/22/8 WEB

Timeline

Published2026-05-22By the CVE Program.
NVD record modified2026-07-23NVD's own last-modified date for this record.