Uncontrolled Recursion Vulnerability in ChaiScript by ChaiScript
CVE-2026-3384

4.8MEDIUM

Key Information:

Vendor

ChaiScript

Status
Chaiscript
Vendor
CVE Published:
1 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-3384?

A security vulnerability has been detected in ChaiScript versions up to 6.1.0, specifically affecting the evaluation function chaiscript::eval::AST_Node_Impl::eval and chaiscript::eval::Function_Push_Pop. This vulnerability allows for uncontrolled recursion, which can lead to denial of service. Although this issue can only be exploited locally, it has been publicly disclosed, raising concerns about potential local exploit attempts. The ChaiScript project has been notified of this issue through an official report, yet no response has been published regarding a patch or mitigation strategy.

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Affected Version(s)

ChaiScript 6.0

ChaiScript 6.1.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-3384 - Proof of Concept

References

https://vuldb.com/?id.348270
vdb-entrytechnical-description
https://vuldb.com/?ctiid.348270
signaturepermissions-required
https://vuldb.com/?submit.761303
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Oneafter (VulDB User)
JSON
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