redis-parser through 3.0.0 Denial of Service via Invalid Array Length

Advisories

redis-parser through 3.0.0 Denial of Service via Invalid Array Length

severity: high
date: 9/24/2026
Affecting: redis-parser <= 3.0.0
CVE: CVE-2026-97057
CWE: CWE-1284 Improper Validation of Specified Quantity in Input
CVSS: 8.7
CVSS V4 Vector: 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
References: GitHub Issue #65
https://github.com/NodeRedis/node-redis-parser/blob/4c2d31c8717f05dea1ffd91a0e45d68f452c73bd/lib/parser.js#L212
https://github.com/NodeRedis/node-redis-parser/blob/4c2d31c8717f05dea1ffd91a0e45d68f452c73bd/lib/parser.js#L108-L122
https://github.com/NodeRedis/node-redis-parser/blob/4c2d31c8717f05dea1ffd91a0e45d68f452c73bd/lib/parser.js#L492-L550
https://github.com/NodeRedis/node-redis-parser/issues/47
https://github.com/NodeRedis/node-redis-parser
Credit: Wayde Shi (PayPal Cyber Security Team)
Description: redis-parser through 3.0.0 fails to validate the multi-bulk length value in RESP protocol parsing, allowing attackers to trigger an uncaught RangeError by supplying an excessively large declared length. A malicious or compromised Redis endpoint can deliver a crafted RESP header with a length above 2^32-1 to crash the Node.js client process.

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