vulnerability
Redis: Heap-based Buffer Overflow (CVE-2026-25243)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 9 | (AV:N/AC:L/Au:S/C:C/I:C/A:C) | May 5, 2026 | May 8, 2026 | May 17, 2026 |
Severity
9
CVSS
(AV:N/AC:L/Au:S/C:C/I:C/A:C)
Published
May 5, 2026
Added
May 8, 2026
Modified
May 17, 2026
Description
Redis is an in-memory data structure store. In versions of redis-server up to 8.6.3, the RESTORE command does not properly validate serialized values. An authenticated attacker with permission to execute RESTORE can supply a crafted serialized payload that triggers invalid memory access and may lead to remote code execution. A workaround is to restrict access to the RESTORE command with ACL rules. This is patched in version 8.6.3.
Solution
redislabs-redis-upgrade-8_6_3
Rapid7 Labs
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