CVE-2026-2887

aardappel lobster idents.h TypeName recursion

MEDIUM
5.5
CVSS Score
Published: February 21, 2026 at 09:02 PM UTC
Updated: June 17, 2026 at 10:31 AM UTC
2 products affected across 2 vendorsLobsterLobster

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2026.1
Vendor states this is fixed in 2026.1 (unaffected)

References (9)

VDB EntryTechnical DescriptionThird Party Advisory
Source: cverecord
https://vuldb.com/?id.347181
SignaturePermissions RequiredVDB Entry
Source: cverecord
https://vuldb.com/?ctiid.347181
Third Party AdvisoryVDB Entry
Source: cverecord
https://vuldb.com/?submit.755026
Issue TrackingExploitVendor Advisory
Source: cverecord
https://github.com/aardappel/lobster/issues/397
Issue TrackingExploitVendor Advisory
Source: cverecord
https://github.com/aardappel/lobster/issues/397#issuecomment-3849015088
ExploitThird Party Advisory
Source: cverecord
https://github.com/oneafter/0204/blob/main/lob3/repro.lobster

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-674CWE-404

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