CVE-2021-29469 json
Potential exponential regex in monitor mode
published 2021-04-23 5 y ago modified 2026-07-08 4 mo ago also GHSA-35q2-47q7-3pc3 , EUVD-2021-0743
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.6%
- EPSS 1.6% chance of exploitation in 30 days, percentile 76%
- public exploits
- 0
- none known
Summary
Node-redis is a Node.js Redis client. Before version 3.1.1, when a client is in monitoring mode, the regex begin used to detected monitor messages could cause exponential backtracking on some strings. This issue could lead to a denial of service. The issue is patched in version 3.1.1.
Patch / fix
- npm redis 3.1.1
- redis.js redis 3.1.1
- node-redis Debian 14, Debian 13, Debian 12 3.0.2+~cs5.18.1-3
debian advisories DEBIAN-CVE-2021-29469
Exploit prediction
1.63% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | redis | >=2.6.0, <3.1.1 |
3.1.1 |
Affected products
- NodeRedis node-redis
Classification
- Weakness
-
- CWE-400 Uncontrolled Resource Consumption
References
-
github.com
/NodeRedis/node-redis/commit/2d11b6dc9b9774464a91fb4b448bad8bf699629e
web, patch, third-party-advisory
-
github.com
/NodeRedis/node-redis/security/advisories/GHSA-35q2-47q7-3pc3
web, patch, third-party-advisory
-
github.com
/NodeRedis/node-redis/releases/tag/v3.1.1
web, third-party-advisory
-
security.netapp.com
/advisory/ntap-20210611-0010/
third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-29469
advisory
-
security.netapp.com
/advisory/ntap-20210611-0010
web
Sources
- CVE List CVE-2021-29469
- GitHub Advisory GHSA-35q2-47q7-3pc3
- NVD CVE-2021-29469
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.