What is CVE-2026-2258?

CVE-2026-2258 is a low-severity vulnerability in Aardappel Lobster, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 3.3/10. Published 2026-02-10.

How severe is CVE-2026-2258?

Low severity. CVSS v3 base score is 3.3 out of 10.

Buffer overflow in Aardappel Lobster

CVE-2026-2258

A flaw has been found in aardappel lobster up to 2025.4. Affected by this vulnerability is the function WaveFunctionCollapse in the library dev/src/lobster/wfc.h. Executing a manipulation can lead to memory corruption. The attack can only be executed locally. The exploit has been published and may be used. This patch is called c2047a33e1ac2c42ab7e8704b33f7ea518a11ffd. It is advisable to implement a patch to correct this issue.

Vulnerability class: Buffer Overflow

Published 2026-02-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.002 (8.0th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 8.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

Aardappel Lobster — versions 2025.0, 2025.1, 2025.2
Strlen Lobster

Weakness classification (CWE)

References

vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
vuldb.com/ (Exploit, VDB Entry, Third Party Advisory, third-party-advisory)
github.com/aardappel/lobster/issues/395 (issue-tracking, Patch, Vendor Advisory)
github.com/aardappel/lobster/issues/395 (issue-tracking, Patch, Vendor Advisory)
github.com/oneafter/0204/blob/main/lob1/repro.lobster (Product, exploit)
github.com/aardappel/lobster/commit/c2047a33e1ac2c42ab7e8704b33f7ea518a11ffd (Patch, patch)
github.com/aardappel/lobster/ (Product, product)

Frequently asked questions

What is CVE-2026-2258?: CVE-2026-2258 is a low-severity vulnerability in Aardappel Lobster, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 3.3/10. Published 2026-02-10.
How severe is CVE-2026-2258?: Low severity. CVSS v3 base score is 3.3 out of 10.