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.
Weakness
The product does not release or incorrectly releases a resource before it is made available for re-use.
Potential Mitigations
- Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
- For example, languages such as Java, Ruby, and Lisp perform automatic garbage collection that releases memory for objects that have been deallocated.
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/125.html
- https://cwe.mitre.org/data/definitions/130.html
- https://cwe.mitre.org/data/definitions/131.html
- https://cwe.mitre.org/data/definitions/494.html
- https://cwe.mitre.org/data/definitions/495.html
- https://cwe.mitre.org/data/definitions/496.html
- https://cwe.mitre.org/data/definitions/666.html
References
- https://github.com/aardappel/lobster/
- https://github.com/aardappel/lobster/commit/8ba49f98ccfc9734ef352146806433a41d9f9aa6
- https://github.com/aardappel/lobster/issues/397
- https://github.com/aardappel/lobster/issues/397#issuecomment-3849015088
- https://github.com/aardappel/lobster/releases/tag/v2026.1
- https://github.com/oneafter/0204/blob/main/lob3/repro.lobster
- https://vuldb.com/?ctiid.347181
- https://vuldb.com/?id.347181
- https://vuldb.com/?submit.755026