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NVD Vulnerability Details :

CVE-2026-50631

Analyzed

Source-security@apache.org

Published At-12 Jun, 2026 | 10:16

Updated At-12 Jun, 2026 | 19:03

A race condition in AbstractOAuthDataProvider allows concurrent requests using the same Refresh Token to bypass single-use semantics and generate multiple valid Access Tokens, when 'recycleRefreshTokens' is set to false. A leaked refresh token can be replayed concurrently by multiple attackers or threads. Users are recommended to upgrade to versions 4.2.2 or 4.1.7, which fixes this issue.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Secondary	3.1	7.4	HIGH	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Type: Secondary

Version: 3.1

Base score: 7.4

Base severity: HIGH

Vector:

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

CPE Matches

The Apache Software Foundation

>>cxf>>Versions before 4.1.7(exclusive)

cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*

The Apache Software Foundation

>>cxf>>Versions from 4.2.0(inclusive) to 4.2.2(exclusive)

cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*

Weaknesses

CWE ID	Type	Source
CWE-367	Secondary	security@apache.org

CWE ID: CWE-367

Type: Secondary

Source: security@apache.org

References

Hyperlink	Source	Resource
https://lists.apache.org/thread/s83t3x4r626o9h8rt0ryr1w7w53l1vv8	security@apache.org	Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/06/11/8	af854a3a-2127-422b-91ae-364da2661108	Mailing List Third Party Advisory

Hyperlink: https://lists.apache.org/thread/s83t3x4r626o9h8rt0ryr1w7w53l1vv8

Source: security@apache.org

Resource:

Vendor Advisory

Hyperlink: http://www.openwall.com/lists/oss-security/2026/06/11/8

Source: af854a3a-2127-422b-91ae-364da2661108

Resource:

Mailing List

Third Party Advisory

CISA Catalog

Metrics

CPE Matches

Weaknesses

Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References

Change History