CVE-2026-66373

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 v3.1

7.5 HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.89% chance of exploitation in the next 30 days, 57th percentile

Published

2026-07-25

Updated

2026-08-07

Proof-of-concept exploits (1)

• berabuddies/redis-poc509★ · 2026-07-24

References

• CVE Record
• NVD entry

Related

• CVE-2026-25243
• CVE-2026-25589
• CVE-2026-6636
• CVE-2026-66384
• CVE-2026-6635
• CVE-2026-6643