CVE-2026-2259
aardappel lobster Parsing parser.h ParseStatements memory corruption
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.
INFO
Published Date :
Feb. 10, 2026, 4:16 a.m.
Last Modified :
Feb. 17, 2026, 3:08 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | LOW | [email protected] | ||||
| CVSS 3.1 | LOW | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Apply the patch to the aardappel lobster library.
- Update the aardappel lobster component to the latest version.
- Rebuild the affected component after applying the patch.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-2259.
| URL | Resource |
|---|---|
| https://github.com/aardappel/lobster/ | Product |
| https://github.com/aardappel/lobster/commit/2f45fe860d00990e79e13250251c1dde633f1f89 | Patch |
| https://github.com/aardappel/lobster/issues/396 | PatchVendor AdvisoryIssue Tracking |
| https://github.com/aardappel/lobster/issues/396#issuecomment-3849019040 | PatchVendor AdvisoryIssue Tracking |
| https://github.com/oneafter/0204/blob/main/lob2/repro.lobster | Exploit |
| https://vuldb.com/?ctiid.345006 | Permissions RequiredVDB Entry |
| https://vuldb.com/?id.345006 | Third Party AdvisoryVDB Entry |
| https://vuldb.com/?submit.753168 | ExploitThird Party AdvisoryVDB Entry |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-2259 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-2259
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-2259 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-2259 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Feb. 17, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-787 Added CPE Configuration OR *cpe:2.3:a:strlen:lobster:*:*:*:*:*:*:*:* versions up to (including) 2025.4 Added Reference Type VulDB: https://github.com/aardappel/lobster/ Types: Product Added Reference Type VulDB: https://github.com/aardappel/lobster/commit/2f45fe860d00990e79e13250251c1dde633f1f89 Types: Patch Added Reference Type VulDB: https://github.com/aardappel/lobster/issues/396 Types: Issue Tracking, Patch, Vendor Advisory Added Reference Type VulDB: https://github.com/aardappel/lobster/issues/396#issuecomment-3849019040 Types: Issue Tracking, Patch, Vendor Advisory Added Reference Type VulDB: https://github.com/oneafter/0204/blob/main/lob2/repro.lobster Types: Exploit Added Reference Type VulDB: https://vuldb.com/?ctiid.345006 Types: Permissions Required, VDB Entry Added Reference Type VulDB: https://vuldb.com/?id.345006 Types: Third Party Advisory, VDB Entry Added Reference Type VulDB: https://vuldb.com/?submit.753168 Types: Exploit, Third Party Advisory, VDB Entry -
New CVE Received by [email protected]
Feb. 10, 2026
Action Type Old Value New Value Added 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. Added CVSS V4.0 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 Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L Added CVSS V2 (AV:L/AC:L/Au:S/C:N/I:N/A:P) Added CWE CWE-119 Added Reference https://github.com/aardappel/lobster/ Added Reference https://github.com/aardappel/lobster/commit/2f45fe860d00990e79e13250251c1dde633f1f89 Added Reference https://github.com/aardappel/lobster/issues/396 Added Reference https://github.com/aardappel/lobster/issues/396#issuecomment-3849019040 Added Reference https://github.com/oneafter/0204/blob/main/lob2/repro.lobster Added Reference https://vuldb.com/?ctiid.345006 Added Reference https://vuldb.com/?id.345006 Added Reference https://vuldb.com/?submit.753168