CVE-2026-66373 – Redis Double Free Vulnerability

CVE ID :CVE-2026-66373

Published : July 25, 2026, 1:16 a.m. | 35 minutes ago

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.

Severity: 7.5 | HIGH

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