CVE-2026-66373
7.5
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Redis | Redis | 0 < 8.8.0 | affected |
Weaknesses
- CWE-415: CWE-415 Double Free
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
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