CVE-2026-88408: FalkorDB · Stack-based Buffer Overflow
Affects FalkorDBSource CVE Database V5
Not known to be exploited · CVSS 6.5 Medium : upgrade to 4.20.5 when convenient.
Data as of 26 Oct 2026, 12:55 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 34% 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:L/S:U/UI:NExploitation evidence
Disclosed: evidence found.
CVE published 21 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 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.
AI-suggested
If you cannot patch yet, consider restricting access to the vulnerable FalkorDB Redis module instances and monitor for unusual crashes or service interruptions.
Description
FalkorDB Redis module versions 4.20.1 through 4.20.4 contain a stack overflow vulnerability in the _GetGroup() function. This flaw can be triggered by crafted input, leading to a denial of service (DoS) condition. The vulnerability has a medium severity rating with a CVSS score of 6.5. No known exploits are reported in the wild.