# CVE-2026-93435 — NodeRedis redis-parser

> As of 2026-09-17, CVE-2026-93435 is a HIGH-severity vulnerability in NodeRedis redis-parser, CVSS v3.1 7.5, EPSS 0.4% (38.1th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-93435 as of 2026-09-17; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-09-17

## What is CVE-2026-93435?

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.

The record classifies CVE-2026-93435 under weakness class [CWE-674](https://intel.threadlinqs.com/cwe/CWE-674). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 18 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 7.5 — HIGH (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **CVSS v4.0 base score:** 8.7 (`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`)
- **EPSS (FIRST):** 0.4% probability of exploitation in the next 30 days, higher than 38.1% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 5.3/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-09-17

## Is CVE-2026-93435 being exploited?

It currently carries a trending score of 39 in the Threadlinqs vulnerability feed.

## Affected products and versions

- **NodeRedis**: redis-parser

## How to fix CVE-2026-93435

No vendor patch reference has been recorded for CVE-2026-93435 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-93435

No threat campaign in the Threadlinqs corpus currently references CVE-2026-93435, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, NVD, GitHub Security Advisories, FIRST EPSS. Last verified by Threadlinqs on 2026-09-19. This product uses the NVD API but is not endorsed or certified by the NVD.

**Technical analysis**

- [github.com — technical description](https://github.com/NodeRedis/node-redis-parser/blob/701655430f5f7d9ca00892a02f7eefcbc1193a98/lib/parser.js#L204-L213)
- [github.com — technical description (parser)](https://github.com/NodeRedis/node-redis-parser/blob/701655430f5f7d9ca00892a02f7eefcbc1193a98/lib/parser.js#L291-L306)

**Third-party advisory**

- [vulncheck.com — third party advisory](https://www.vulncheck.com/advisories/redis-parser-through-3.0.0-denial-of-service-via-unbounded-recursion)

**Issue tracking and product pages**

- [github.com — issue tracking](https://github.com/redis/ioredis/issues/2108)
- [github.com — product](https://github.com/NodeRedis/node-redis-parser)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-93435
Full detection coverage and IOCs for threats exploiting CVE-2026-93435 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp