CVE-2025-64998 — Session hijacking via exposed session signing secret in distributed Checkmk setups

CVE-2025-64998

Session hijacking via exposed session signing secret in distributed Checkmk setups PUBLISHED

Description (CNA)

Exposure of session signing secret in Checkmk <2.4.0p23, <2.3.0p45 and 2.2.0 allows an administrator of a remote site with config sync enabled to hijack sessions on the central site by forging session cookies.

Affected (CNA)

Vendor / product	Versions
Checkmk GmbH / Checkmk	affected 2.4.0 before 2.4.0p23; affected 2.3.0 before 2.3.0p45; affected 2.2.0

CWE

CWE-522

References

https://checkmk.com/werk/18954

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.