CVE-2026-50631

HIGH EPSS 21.0%
Published Jun 12, 20262w ago · Modified Jun 17, 20261w ago
7.4 CVSS 3.1
High
Find Similar
Published Jun 12, 2026 2w ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
7.4
Exploitability
2.2
Impact
5.2
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability None

Threat Intelligence

EPSS Exploit Probability
21.0% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-367

Affected Products 2

VendorProductVersionRange
apachecxf* <4.1.7
apachecxf*≥4.2.0  –  <4.2.2

References 2

  • openwall.com http://www.openwall.com/lists/oss-security/2026/06/11/8
    Mailing ListThird Party Advisory
  • lists.apache.org https://lists.apache.org/thread/s83t3x4r626o9h8rt0ryr1w7w53l1vv8
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.