Apache CXF up to 3.6.10/4.1.5/4.2.0 WS-Transfer xml external entity reference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Apache CXF up to 3.6.10/4.1.5/4.2.0. Affected is an unknown function of the component WS-Transfer Module. Executing a manipulation can lead to xml external entity reference. This vulnerability appears as CVE-2026-44618. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in Apache CXF up to 3.6.10/4.1.5/4.2.0 and classified as critical. This vulnerability affects an unknown code block of the component WS-Transfer Module. The manipulation with an unknown input leads to a xml external entity reference vulnerability. The CWE definition for the vulnerability is CWE-611. The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was presented by icysun. The advisory is shared for download at lists.apache.org. This vulnerability was named CVE-2026-44618 since 05/07/2026. The exploitation appears to be easy. The attack can be initiated remotely. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 05/23/2026).

Upgrading to version 3.6.11, 4.1.6 or 4.2.1 eliminates this vulnerability.

The vulnerability is also documented in the databases at EUVD (EUVD-2026-31434) and CERT Bund (WID-SEC-2026-1659). Once again VulDB remains the best source for vulnerability data.

Affected

  • Apache CXF

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Xml external entity reference
CWE: CWE-611 / CWE-610
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: CXF 3.6.11/4.1.6/4.2.1

Timelineinfo

05/07/2026 CVE reserved
05/22/2026 +15 days Advisory disclosed
05/22/2026 +0 days VulDB entry created
05/23/2026 +1 days VulDB entry last update

Sourcesinfo

Vendor: apache.org

Advisory: lists.apache.org
Researcher: icysun
Status: Confirmed

CVE: CVE-2026-44618 (🔒)
GCVE (CVE): GCVE-0-2026-44618
GCVE (VulDB): GCVE-100-365188
EUVD: 🔒
CERT Bund: WID-SEC-2026-1659 - Apache CXF: Mehrere Schwachstellen

Entryinfo

Created: 05/22/2026 15:54
Updated: 05/23/2026 05:30
Changes: 05/22/2026 15:54 (57), 05/23/2026 00:29 (7), 05/23/2026 05:30 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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