What is CVE-2026-22888?

CVE-2026-22888 is a high-severity vulnerability in Cybozu Garoon, classified under CWE-231. CVSS score: 7.5/10. Published 2026-02-02.

How severe is CVE-2026-22888?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Cybozu Garoon

CVE-2026-22888

Improper input verification issue exists in Cybozu Garoon 5.0.0 to 6.0.3, which may lead to unauthorized alteration of portal settings, potentially blocking access to the product.

EPSS: 0.004 (32.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Cybozu Garoon
Cybozu, Inc. Cybozu Garoon — versions 5.0.0 to 6.0.3

Weakness classification (CWE)

CWE-231

References

vultures@jpcert.or.jp (Vendor Advisory)
vultures@jpcert.or.jp (Third Party Advisory)

Frequently asked questions

What is CVE-2026-22888?: CVE-2026-22888 is a high-severity vulnerability in Cybozu Garoon, classified under CWE-231. CVSS score: 7.5/10. Published 2026-02-02.
How severe is CVE-2026-22888?: High severity. CVSS v3 base score is 7.5 out of 10.