CVE-2022-36021
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.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 59.8%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 59.77% probability · 99th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-407
- Affected
- redis/redis
- Source
- security-advisories@github.com
EPSS 59.8% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/redis/redis/commit/dcbfcb916ca1a269b3feef86ee86835294758f84Patch
- https://github.com/redis/redis/security/advisories/GHSA-jr7j-rfj5-8xqvVendor Advisory
- https://github.com/redis/redis/commit/dcbfcb916ca1a269b3feef86ee86835294758f84Patch
- https://github.com/redis/redis/security/advisories/GHSA-jr7j-rfj5-8xqvVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.