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 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.6 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/berabuddies/redis-poc
https://github.com/redis/redis/compare/8.6.4...8.8.0
https://github.com/redis/redis/pull/15081
https://news.ycombinator.com/item?id=49024938
https://x.com/Fried_rice/status/2080059356322918777
https://lists.debian.org/debian-lts-announce/2026/08/msg00012.html
https://github.com/berabuddies/redis-poc

Configurations

No configuration.

History

No history.

Information

Published : 2026-07-25 01:16

Updated : 2026-09-09 16:03

NVD link : CVE-2026-66373

Mitre link : CVE-2026-66373

CVE.ORG link : CVE-2026-66373

JSON object : View

Products Affected

No product.

CWE

CWE-415

Double Free

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