CVE-2026-66373 | Redis before 8.8.0, in the unusual case where an authenticat… | CVSS 7.5 HIGH

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.

Metadata

CVE ID: CVE-2026-66373
State: PUBLISHED
Assigner: mitre
Reserved: 2026-07-25 00:08 UTC
Published: 2026-07-25 00:08 UTC
Last updated: 2026-07-25 00:08 UTC
Primary CWE: CWE-415
CWE-415 Double Free
Vendor / Product: Redis / Redis
Sources: cve.org · NVD

Severity & Metrics

7.5 HIGH CVSS 3.1

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

Affected products (1)

Vendor	Product	Platform	Versions
Redis	Redis	—	0 < 8.8.0

Weakness (CWE)

CWE	Source	Description
CWE-415	cna	CWE-415 Double Free

CVSS scores (1)

Score	Severity	Version	Source	Vector
7.5	HIGH	3.1	cna	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References (5)