CVE-2026-2259

Name: CVE-2026-2259
Creator: NVD / NIST
Published: 2026-02-10T04:16:05.433+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 1.9/10EPSS 0.21%

Last modified Jun 17, 2026

CVE-2026-2259 is a low-severity vulnerability rated 1.9/10 on the CVSS scale. A vulnerability has been found in aardappel lobster up to 2025.4. Affected by this issue is the function lobster::Parser::ParseStatements in the library dev/src/lobster/parser.h of the component Parsing. EPSS estimates a 0.21% chance of exploitation in the next 30 days.

Description

A vulnerability has been found in aardappel lobster up to 2025.4. Affected by this issue is the function lobster::Parser::ParseStatements in the library dev/src/lobster/parser.h of the component Parsing. The manipulation leads to memory corruption. The attack can only be performed from a local environment. The exploit has been disclosed to the public and may be used. The identifier of the patch is 2f45fe860d00990e79e13250251c1dde633f1f89. Applying a patch is the recommended action to fix this issue.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS 4.0

1.9/10

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

EPSS Probability

0.21%

11.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Strlen	Lobster	<= 2025.4

References

https://github.com/aardappel/lobster/Product
https://github.com/aardappel/lobster/commit/2f45fe860d00990e79e13250251c1dde633f1f89Patch
https://github.com/aardappel/lobster/issues/396Issue Tracking, Patch, Vendor Advisory
https://github.com/aardappel/lobster/issues/396#issuecomment-3849019040Issue Tracking, Patch, Vendor Advisory
https://github.com/oneafter/0204/blob/main/lob2/repro.lobsterExploit
https://vuldb.com/?ctiid.345006Permissions Required, VDB Entry
https://vuldb.com/?id.345006Third Party Advisory, VDB Entry
https://vuldb.com/?submit.753168Exploit, Third Party Advisory, VDB Entry

Timeline

Published: Feb 10, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-2259?

How severe is CVE-2026-2259?

CVE-2026-2259 has a CVSS score of 1.9/10 (LOW severity). The EPSS model estimates a 0.21% probability of exploitation in the next 30 days.

How do I fix CVE-2026-2259?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-2259?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST