VDB-370474 · CVE-2026-50645 · EUVD-2026-36403

Apache CXF up to 4.1.6/4.2.1 Attachment Header access control

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.0	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Apache CXF up to 4.1.6/4.2.1. It has been declared as critical. Impacted is an unknown function of the component Attachment Header Handler. Executing a manipulation can lead to access control. The identification of this vulnerability is CVE-2026-50645. The attack may be launched remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apache CXF up to 4.1.6/4.2.1. It has been declared as critical. This vulnerability affects some unknown processing of the component Attachment Header Handler. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is available at lists.apache.org. This vulnerability was named CVE-2026-50645. The exploitation appears to be easy. The attack can be initiated remotely. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 06/19/2026). This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 321189 (Apache CXF < 4.1.7 / 4.2.x < 4.2.2 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.1.7 or 4.2.2 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (321189), EUVD (EUVD-2026-36403) and CERT Bund (WID-SEC-2026-1895). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

Apache CXF

Productinfo

Type

Application Server Software

Vendor

Apache

Name

Version

License

open-source

Website

Vendor: https://www.apache.org/

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

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 321189
Nessus Name: Apache CXF < 4.1.7 / 4.2.x < 4.2.2 Multiple Vulnerabilities

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: CXF 4.1.7/4.2.2

Timelineinfo

06/11/2026 Advisory disclosed
06/11/2026 +0 days VulDB entry created
06/19/2026 +8 days VulDB entry last update

Sourcesinfo

Vendor: apache.org

Advisory: lists.apache.org
Status: Confirmed

CVE: CVE-2026-50645 (🔒)
GCVE (CVE): GCVE-0-2026-50645
GCVE (VulDB): GCVE-100-370474
EUVD: 🔒
CERT Bund: WID-SEC-2026-1895 - Apache CXF: Mehrere Schwachstellen

Entryinfo

Created: 06/11/2026 22:51
Updated: 06/19/2026 20:38
Changes: 06/11/2026 22:51 (53), 06/12/2026 16:43 (1), 06/13/2026 04:56 (7), 06/19/2026 20:38 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.