Heap-based buffer overflow in RedisTimeSeries - CVE-2026-25588
Published: July 22, 2026
Vulnerability identifier: #VU139160
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-25588
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: RedisTimeSeries
Affected software:
RedisTimeSeries
RedisTimeSeries
Detailed vulnerability description
The vulnerability allows a remote user to execute arbitrary code.
The vulnerability exists due to heap-based buffer overflow in the RedisTimeSeries module when processing serialized values via the RESTORE command. A remote user can send a specially crafted serialized payload to execute arbitrary code.
Exploitation requires the RedisTimeSeries module to be loaded and permission to execute the RESTORE command.
How to mitigate CVE-2026-25588
Install security update from vendor's website.