CVE-2026-66373

Published: Jul 25, 2026Modified: Sep 9, 2026

7.5

Vector

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

Exploitability: 1.6 / Impact: 5.9

Source: MITRE (Secondary)

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.

Related CWEs

The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations.

References (7)

https://github.com/berabuddies/redis-poc

Source: cve@mitre.org

https://github.com/redis/redis/compare/8.6.4...8.8.0

Source: cve@mitre.org

https://github.com/redis/redis/pull/15081

Source: cve@mitre.org

https://news.ycombinator.com/item?id=49024938

Source: cve@mitre.org

https://x.com/Fried_rice/status/2080059356322918777

Source: cve@mitre.org

https://lists.debian.org/debian-lts-announce/2026/08/msg00012.html

Source: af854a3a-2127-422b-91ae-364da2661108

https://github.com/berabuddies/redis-poc

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.