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Vulnerability Details :

CVE-2026-50629

Summary
Assigner-apache
Assigner Org ID-f0158376-9dc2-43b6-827c-5f631a4d8d09
Published At-12 Jun, 2026 | 08:57
Updated At-12 Jun, 2026 | 14:47
Rejected At-
Credits

Apache CXF: OAuth2: Log Injection via Unsanitized Client Identifier

The 'clientId' parameter from incoming HTTP requests is directly concatenated into OAuth2 server log warning messages without sanitizing control characters. This allows an attacker to inject arbitrary content, including fake log entries, into the server's log files. Users are recommended to upgrade to versions 4.2.2 or 4.1.7, which fixes this issue.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:apache
Assigner Org ID:f0158376-9dc2-43b6-827c-5f631a4d8d09
Published At:12 Jun, 2026 | 08:57
Updated At:12 Jun, 2026 | 14:47
Rejected At:
▼CVE Numbering Authority (CNA)
Apache CXF: OAuth2: Log Injection via Unsanitized Client Identifier

The 'clientId' parameter from incoming HTTP requests is directly concatenated into OAuth2 server log warning messages without sanitizing control characters. This allows an attacker to inject arbitrary content, including fake log entries, into the server's log files. Users are recommended to upgrade to versions 4.2.2 or 4.1.7, which fixes this issue.

Affected Products
Vendor
The Apache Software FoundationApache Software Foundation
Product
Apache CXF
Collection URL
https://repo.maven.apache.org/maven2
Package Name
org.apache.cxf:cxf-rt-rs-security-oauth2
Default Status
unaffected
Versions
Affected
  • From 4.2.0 before 4.2.2 (semver)
  • From 0 before 4.1.7 (semver)
Problem Types
TypeCWE IDDescription
CWECWE-93CWE-93 Improper Neutralization of CRLF Sequences ('CRLF Injection')
Type: CWE
CWE ID: CWE-93
Description: CWE-93 Improper Neutralization of CRLF Sequences ('CRLF Injection')
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Textual description of severity
text:
low
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
finder
Guanping Zhang reported this vulnerability.
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://lists.apache.org/thread/xw95po30p8th58ms1no6b0f2375cql00
vendor-advisory
Hyperlink: https://lists.apache.org/thread/xw95po30p8th58ms1no6b0f2375cql00
Resource:
vendor-advisory
▼Authorized Data Publishers (ADP)
1. CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
http://www.openwall.com/lists/oss-security/2026/06/11/6
N/A
Hyperlink: http://www.openwall.com/lists/oss-security/2026/06/11/6
Resource: N/A
2. CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
3.15.3MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Version: 3.1
Base score: 5.3
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security@apache.org
Published At:12 Jun, 2026 | 10:16
Updated At:12 Jun, 2026 | 19:04

The 'clientId' parameter from incoming HTTP requests is directly concatenated into OAuth2 server log warning messages without sanitizing control characters. This allows an attacker to inject arbitrary content, including fake log entries, into the server's log files. Users are recommended to upgrade to versions 4.2.2 or 4.1.7, which fixes this issue.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.15.3MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Type: Secondary
Version: 3.1
Base score: 5.3
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CPE Matches
The Apache Software Foundation
apache
>>cxf>>Versions before 4.1.7(exclusive)
cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*
The Apache Software Foundation
apache
>>cxf>>Versions from 4.2.0(inclusive) to 4.2.2(exclusive)
cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-93Secondarysecurity@apache.org
CWE ID: CWE-93
Type: Secondary
Source: security@apache.org
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://lists.apache.org/thread/xw95po30p8th58ms1no6b0f2375cql00security@apache.org
Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/06/11/6af854a3a-2127-422b-91ae-364da2661108
Mailing List
Third Party Advisory
Hyperlink: https://lists.apache.org/thread/xw95po30p8th58ms1no6b0f2375cql00
Source: security@apache.org
Resource:
Vendor Advisory
Hyperlink: http://www.openwall.com/lists/oss-security/2026/06/11/6
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Mailing List
Third Party Advisory

Change History

0
Information is not available yet

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