CVE-2026-66373
Public on 2026-07-25
Modified on 2026-07-29
Description
Redis before 8.8.0, in the unusual case where an authenticated attacker can execute RESTORE, allows remote code execution via a RESTORE payload where the same NACK (pending entry) is referenced by more than one consumer, because deleting both consumers via XGROUP DELCONSUMER leads to a double free. NOTE: this issue exists because of an incomplete fix for CVE-2026-25243.
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 2023 | hiredis | Not Affected | ||
| Amazon Linux 2023 | php8.1-pecl-redis6 | No Fix Planned | ||
| Amazon Linux 2023 | php8.2-pecl-redis6 | Not Affected | ||
| Amazon Linux 2023 | php8.3-pecl-redis6 | Not Affected | ||
| Amazon Linux 2023 | php8.4-pecl-redis6 | Not Affected | ||
| Amazon Linux 2023 | php8.5-pecl-redis6 | Not Affected | ||
| Amazon Linux 2023 | redis6 | No Fix Planned | ||
| Amazon Linux 2023 | valkey | Pending Fix |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 7.5 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |