What is CVE-2026-57818?

CVE-2026-57818 is a high-severity vulnerability in Apache Cxf, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 8.1/10. Published 2026-08-06.

How severe is CVE-2026-57818?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Apache Cxf

CVE-2026-57818

A race condition in JCacheCodeDataProvider allows an attacker to redeem a single authorization code multiple times via concurrent requests, resulting in the issuance of multiple distinct, valid access tokens. Users are recommended to upgra…

Vulnerability class: TOCTOU (Time-of-Check to Time-of-Use)

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Apache Cxf
Apache Software Foundation Cxf — versions 4.2.0, 4.0.0, 0

Weakness classification (CWE)

CWE-367 — Time-of-check Time-of-use (TOCTOU) Race Condition

References

security@apache.org (vendor-advisory, Mailing List, Vendor Advisory)

Frequently asked questions

What is CVE-2026-57818?: CVE-2026-57818 is a high-severity vulnerability in Apache Cxf, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 8.1/10. Published 2026-08-06.
How severe is CVE-2026-57818?: High severity. CVSS v3 base score is 8.1 out of 10.