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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Redis Redis
Default version status: unaffected
0 to < 8.8.0affected
References
- https://github.com/redis/redis/pull/15081 ↗
- https://github.com/redis/redis/compare/8.6.4...8.8.0 ↗
- https://x.com/Fried_rice/status/2080059356322918777 ↗
- https://github.com/berabuddies/redis-poc ↗
- https://news.ycombinator.com/item?id=49024938 ↗
- https://lists.debian.org/debian-lts-announce/2026/08/msg00012.html ↗