CVE-2026-2887 Details
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.
A stack overflow vulnerability due to uncontrolled recursion has been identified in aardappel Lobster versions through 2025.4. The issue arises in the TypeName function within the file dev/src/lobster/idents.h. This vulnerability can be exploited locally, leading to a crash of the Lobster compiler. The problem has been publicly disclosed and can be reproduced by building Lobster with release optimization and AddressSanitizer enabled, then running the compiler with a specific input file that triggers the recursion.
Upgrading to Lobster version 2026.1 addresses this vulnerability. The updated version can be downloaded from the Lobster GitHub releases page.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Feb 23, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/aardappel/lobster/ | [email protected] | Product |
| https://github.com/aardappel/lobster/commit/8ba49f98ccfc9734ef352146806433a41d9f9aa6 | [email protected] | Patch |
| https://github.com/aardappel/lobster/issues/397 | [email protected] | ExploitIssue TrackingVendor Advisory |
| https://github.com/aardappel/lobster/issues/397#issuecomment-3849015088 | [email protected] | ExploitIssue TrackingVendor Advisory |
| https://github.com/aardappel/lobster/releases/tag/v2026.1 | [email protected] | Release Notes |
| https://github.com/oneafter/0204/blob/main/lob3/repro.lobster | [email protected] | Third Party Advisory |
| https://vuldb.com/?ctiid.347181 | [email protected] | Permissions RequiredVDB Entry |
| https://vuldb.com/?id.347181 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/?submit.755026 | [email protected] | Third Party AdvisoryVDB Entry |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-674 | Uncontrolled Recursion | [email protected] |
| CWE-404 | Improper Resource Shutdown or Release | [email protected] |
| CWE-674 | Uncontrolled Recursion | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| strlen lobster | < 2026.1 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 29, 2026 | Data Remediation | [email protected] |
| Feb 26, 2026 | Initial Analysis | [email protected] |
| Feb 21, 2026 | New CVE Received | [email protected] |