CVE-2026-2887
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. Limited direct impact.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.2% in the next 30 days (EPSS).
- Severity: 1.9 LOW (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Weakness
- CWE-404
- Record status
- Analyzed
Affected
- Strlen Lobster < 2026.1
Attack profile CVSS 4.0 · 1.9
- Attack vector
- Local
- Complexity
- Low
- Attack requirements
- None
- Privileges needed
- Low
- User interaction
- None
- Confidentiality
- None
- Integrity
- None
- Availability
- Low
Raw vector
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-2887.md and follow it. Check whether this project is affected by CVE-2026-2887. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- 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
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