CVE-2026-2887

aardappel lobster idents.h TypeName recursion

State: Published
Severity: 4.8 Medium
Published: Feb 21, 2026
Updated: Feb 23, 2026
Reserved: Feb 20, 2026

Description

A security vulnerability has been detected in aardappel lobster up to 2025.4. This impacts the function lobster::TypeName in the library dev/src/lobster/idents.h. Such manipulation leads to uncontrolled recursion. The attack can only be performed from a local environment. The exploit has been disclosed publicly and may be used. Upgrading to version 2026.1 will fix this issue. The name of the patch is 8ba49f98ccfc9734ef352146806433a41d9f9aa6. It is advisable to upgrade the affected component.

Scores

CVSS	Score	Vector	Source
4.0	4.8 Medium	CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P	VulDB
3.1	3.3 Low	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C	VulDB
3.0	3.3 Low	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C	VulDB
2.0	1.7 Low	AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C	VulDB

Weaknesses

CWE-674 Uncontrolled Recursion
CWE-404 Denial of Service

Affected Products

Product	Versions
lobsteraardappel	2025.0Affected 2025.1Affected 2025.2Affected 2025.3Affected 2025.4Affected 2026.1Not affected

References

VDB-347181 | aardappel lobster idents.h TypeName recursionvdb-entrytechnical-description
VDB-347181 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
Submit #755026 | aardappel lobster c8a6042 Uncontrolled Recursionthird-party-advisory
https://github.com/aardappel/lobster/issues/397issue-tracking
https://github.com/aardappel/lobster/issues/397#issuecomment-3849015088issue-tracking
https://github.com/oneafter/0204/blob/main/lob3/repro.lobsterexploit
https://github.com/aardappel/lobster/commit/8ba49f98ccfc9734ef352146806433a41d9f9aa6patch
https://github.com/aardappel/lobster/releases/tag/v2026.1patch
https://github.com/aardappel/lobster/product

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