CVE-2026-50631

HIGH SEVERITY

CVSS Score & Metrics

Base Score

7.4 / 10

Vector String

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

Vulnerability Description

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.

Vulnerability Details

Published Date

June 12, 2026

Last Modified

June 12, 2026

CWE ID

CWE-367

Source

NVD

Vendor

Apache Software Foundation

Product

Apache CXF

External References

https://lists.apache.org/thread/s83t3x4r626o9h8rt0ryr1w7w53l1vv8
http://www.openwall.com/lists/oss-security/2026/06/11/8

CVE-2026-50631

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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