CVE-2026-50623
MEDIUM
6,5
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: low
Integrity: low
Availability: none
Description
AI Translation Available
An authentication bypass vulnerability exists in the OAuth2 TokenIntrospectionService in Apache CXF. Due to a missing 'throw' keyword in the security context check, the introspection endpoint (/services/oauth2/introspect) can be accessed by any unauthenticated network attacker. However note that this is a safeguard only in the case that someone forgot to enable authentication on the service. Users are recommended to upgrade to version 4.2.2 or 4.1.7, which fixes this issue.
EPSS (Exploit Prediction Scoring System)
Trend Analysis
EPSS (Exploit Prediction Scoring System)
Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.
EPSS Score
0,0013
Percentile
0,3th
Updated
EPSS Score Trend (Last 4 Days)
287
Improper Authentication
DraftCommon Consequences
Security Scopes Affected:
Integrity
Confidentiality
Availability
Access Control
Potential Impacts:
Read Application Data
Gain Privileges Or Assume Identity
Execute Unauthorized Code Or Commands
Applicable Platforms
Technologies:
Not Technology-Specific, Web Based, ICS/OT
Application
Cxf by Apache
Version Range Affected
From
4.2.0
(inclusive)
To
4.2.2
(exclusive)
CPE Identifier
View Detailed Analysis
cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application
Cxf by Apache
Version Range Affected
To
4.1.7
(exclusive)
CPE Identifier
View Detailed Analysis
cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
http://www.openwall.com/lists/oss-security/2026/06/11/3
https://lists.apache.org/thread/ydzj8m5mqmjy13xgyj9mkk9hfff63qq7