Memory Corruption in Aardappel Lobster Parsing Function
CVE-2026-2259

4.8MEDIUM

Key Information:

Vendor

Aardappel

Status
Lobster
Vendor
CVE Published:
10 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-2259?

Aardappel Lobster has a vulnerability within the lobster::Parser::ParseStatements function in the library dev/src/lobster/parser.h. This flaw, which affects versions up to 2025.4, allows for memory corruption triggered from a local environment. The public disclosure of this vulnerability raises the urgency for affected users to apply the patch identified by commit 2f45fe860d00990e79e13250251c1dde633f1f89 to safeguard their applications.

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Deploy the Patch

Affected Version(s)

lobster 2025.0

lobster 2025.1

lobster 2025.2

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-2026-2259 - Proof of Concept

References

https://vuldb.com/?id.345006
vdb-entrytechnical-description
https://vuldb.com/?ctiid.345006
signaturepermissions-required
https://vuldb.com/?submit.753168
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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