CVE-2026-93435
redis-parser through 3.0.0 Denial of Service via Unbounded Recursion
- State
- Published
- Severity
- 8.7 High
- Published
- Sep 17, 2026
- Updated
- Sep 28, 2026
- Reserved
- Sep 17, 2026
Description
redis-parser through 3.0.0 contains a denial of service vulnerability in the RESP protocol parser that allows malicious Redis endpoints to crash the client process through unbounded recursion on nested arrays. Attackers can send crafted RESP byte streams with repeated array headers that exhaust the V8 call stack, causing an uncaught RangeError that terminates the Node.js process without triggering error handling callbacks.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | VulnCheck |
Weaknesses
- CWE-674 Uncontrolled Recursion
Affected Products
| Product | Versions |
|---|---|
redis-parserNodeRedis |
|
References
- https://github.com/redis/ioredis/issues/2108issue-tracking
- https://github.com/NodeRedis/node-redis-parser/issues/66issue-tracking
- https://github.com/NodeRedis/node-redis-parser/blob/701655430f5f7d9ca00892a02f7eefcbc1193a98/lib/parser.js#L204-L213technical-description
- https://github.com/NodeRedis/node-redis-parser/blob/701655430f5f7d9ca00892a02f7eefcbc1193a98/lib/parser.js#L291-L306technical-description
- https://github.com/NodeRedis/node-redis-parserproduct
- VulnCheck Advisory: redis-parser through 3.0.0 Denial of Service via Unbounded Recursionthird-party-advisory
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