CVE-2026-88407: FalkorDB · Out-of-bounds Read
Affects FalkorDBSource GCVE Database
Not known to be exploited · CVSS 7.5 High : upgrade to 4.20.5 soon.
Data as of 5 Nov 2026, 23:24 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 40% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 4.20.5
CVSS:3.1/AC:L/AV:N/A:H/C:N/I:N/PR:N/S:U/UI:NExploitation evidence
Disclosed: evidence found.
CVE published 21 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.
What to do
Upgrade falkordb/FalkorDB to 4.20.5.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
GitHubfalkordb/FalkorDBpkg:github/falkordb/FalkorDBOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
An out-of-bounds read vulnerability exists in the node_token_count/relation_token_count component of FalkorDB (Redis module) versions 4.20.1 through 4.20.4. This flaw allows attackers to cause a Denial of Service (DoS) by providing crafted input to the affected module.