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Status published
Medium
CVE-2022-36021
Redis string pattern matching can be abused to achieve Denial of Service
Vulnerability Description
Redis is an in-memory database that persists on disk. Authenticated users can use string matching commands (like `SCAN` or `KEYS`) with a specially crafted pattern to trigger a denial-of-service attack on Redis, causing it to hang and consume 100% CPU time. The problem is fixed in Redis versions 6.0.18, 6.2.11, 7.0.9.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
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Affected Vendor
redis
View all reports →Affected Software
redis
Vulnerable Versions:
< 6.0.18, >= 6.2.0, < 6.2.11, >= 7.0.0, < 7.0.9
Timeline
Official Publish:
March 1st, 2023
Last Modified:
March 7th, 2025
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses (CWE)
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.