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CVE-2026-2258

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Date: February 9, 2026

A flaw has been found in aardappel lobster up to 2025.4. Affected by this vulnerability is the function WaveFunctionCollapse in the library dev/src/lobster/wfc.h. Executing a manipulation can lead to memory corruption. The attack can only be executed locally. The exploit has been published and may be used. This patch is called c2047a33e1ac2c42ab7e8704b33f7ea518a11ffd. It is advisable to implement a patch to correct this issue.

Severity Score

Related Resources (10)

https://nvd.nist.gov/vuln/detail/CVE-2026-2258
https://github.com/aardappel/lobster/issues/395#issuecomment-3849012938
https://vuldb.com/?id.345005
https://github.com/aardappel/lobster/commit/c2047a33e1ac2c42ab7e8704b33f7ea518a11ffd
https://github.com/aardappel/lobster/issues/395
https://vuldb.com/?submit.753167
https://github.com/aardappel/lobster/
https://vuldb.com/?ctiid.345005
https://github.com/oneafter/0204/blob/main/lob1/repro.lobster
https://www.mend.io/vulnerability-database/CVE-2026-2258

Severity Score

Weakness Type (CWE)

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-119

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): LOW

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): SINGLE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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