What is CVE-2026-66373?

CVE-2026-66373 is a high-severity vulnerability in Redis, classified under Double Free. CVSS score: 7.5/10. Published 2026-07-25.

How severe is CVE-2026-66373?

High severity. CVSS v3 base score is 7.5 out of 10.

Double Free in Redis

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 b…

Vulnerability class: Double Free

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Redis — versions 0

Weakness classification (CWE)

CWE-415 — Double Free

References

cve@mitre.org
cve@mitre.org
cve@mitre.org
cve@mitre.org
cve@mitre.org

Frequently asked questions

What is CVE-2026-66373?: CVE-2026-66373 is a high-severity vulnerability in Redis, classified under Double Free. CVSS score: 7.5/10. Published 2026-07-25.
How severe is CVE-2026-66373?: High severity. CVSS v3 base score is 7.5 out of 10.