CVE-2026-93435 PUBLISHED

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.

• Wayde Shi (PayPal Cyber Security Team) reporter

• https://github.com/redis/ioredis/issues/2108
• https://github.com/NodeRedis/node-redis-parser/blob/701655430f5f7d9ca00892a02f7eefcbc1193a98/lib/parser.js#L204-L213
• https://github.com/NodeRedis/node-redis-parser/blob/701655430f5f7d9ca00892a02f7eefcbc1193a98/lib/parser.js#L291-L306
• https://github.com/NodeRedis/node-redis-parser
• VulnCheck Advisory: redis-parser through 3.0.0 Denial of Service via Unbounded Recursion

• Uncontrolled Recursion CWE