Use After Free in FascinatedBox Lily by FascinatedBox
CVE-2026-2660

4.8MEDIUM

Key Information:

Vendor

Fascinatedbox

Status
Lily
Vendor
CVE Published:
18 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-2660?

A vulnerability has been identified in FascinatedBox Lily, affecting versions up to 2.3. The issue is associated with the function shorthash_for_name located in src/lily_symtab.c. This vulnerability allows for a use-after-free condition, requiring local access for exploitation. Despite early reports notifying the project maintainers, a response to address this issue has not been provided. Given that the exploit is publicly accessible, users are advised to take immediate action to secure their systems.

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Affected Version(s)

lily 2.0

lily 2.1

lily 2.2

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-2026-2660 - Proof of Concept

References

https://vuldb.com/?id.346458
vdb-entrytechnical-description
https://vuldb.com/?ctiid.346458
signaturepermissions-required
https://vuldb.com/?submit.753164
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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