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.
CVE-2026-93435
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-18. a secondary CVSS source baseline 7.5; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(high)
- EG Risk
- 38(Track)EG Risk 38/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity75% × 45%Exploitation0% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 38%
- KEV
- Not listed
Published
September 17, 2026
Last Modified
September 17, 2026
Advisory Details (5)
Auto-updated Sep 17, 2026redis-parser through 3.0.0 Denial of Service via Unbounded Recursion | Advisories | VulnCheck
https://www.vulncheck.com/advisories/redis-parser-through-3.0.0-denial-of-service-via-unbounded-recursionGitHub - NodeRedis/node-redis-parser: A high performance Redis protocol (RESP) parser for JavaScript. Used by Node Redis & ioredis. · GitHub
https://github.com/NodeRedis/node-redis-parsernode-redis-parser/lib/parser.js at 701655430f5f7d9ca00892a02f7eefcbc1193a98 · NodeRedis/node-redis-parser · GitHub
https://github.com/NodeRedis/node-redis-parser/blob/701655430f5f7d9ca00892a02f7eefcbc1193a98/lib/parser.js#L291-L306node-redis-parser/lib/parser.js at 701655430f5f7d9ca00892a02f7eefcbc1193a98 · NodeRedis/node-redis-parser · GitHub
https://github.com/NodeRedis/node-redis-parser/blob/701655430f5f7d9ca00892a02f7eefcbc1193a98/lib/parser.js#L204-L213Deeply nested RESP aggregates can trigger uncaught RangeError and crash the process · Issue #2108 · redis/ioredis · GitHub
https://github.com/redis/ioredis/issues/2108Vendor Advisories for CVE-2026-93435(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 9× in last 7d / 9× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-09-19 08:57 UTCGHSA enrichment
- 2026-09-18 21:46 UTCEG score recompute
- 2026-09-18 21:46 UTCGHSA enrichment
- 2026-09-18 19:28 UTCEPSS rescore
- 2026-09-18 10:37 UTCEG score recompute
- 2026-09-18 10:36 UTCGHSA enrichment
- 2026-09-17 23:25 UTCEG score recompute
- 2026-09-17 22:24 UTCEG score recompute
- 2026-09-17 22:24 UTCMITRE cvelistV5first tracked
Frequently asked(5)
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Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-93435
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