CVE-2026-2887

low-risk
Published 2026-02-21

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.

Do I need to act?

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0.02% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.3/10 Low
LOCAL / LOW complexity

Affected Products (1)

Lobster

Affected Vendors

Strlen

References (9)

Product https://github.com/aardappel/lobster/
Patch https://github.com/aardappel/lobster/commit/8ba49f98ccfc9734ef352146806433a41d9f...
Exploit https://github.com/aardappel/lobster/issues/397
Exploit https://github.com/aardappel/lobster/issues/397#issuecomment-3849015088
Release Notes https://github.com/aardappel/lobster/releases/tag/v2026.1
Third Party Advisory https://github.com/oneafter/0204/blob/main/lob3/repro.lobster
Permissions Required https://vuldb.com/?ctiid.347181
Third Party Advisory https://vuldb.com/?id.347181
Third Party Advisory https://vuldb.com/?submit.755026
18
/ 100
low-risk
Severity 13/34 · Low
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal