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CVE-2026-2259

18
FAUCET Score

CVE-2026-2259 is a memory corruption vulnerability affecting aardappel lobster versions up to 2025.4, specifically within the lobster::Parser::ParseStatements function. This local vulnerability, rated Medium (CVSS 5.5), allows an authenticated attacker to cause a denial of service. While a public exploit has been disclosed, there is no evidence of active exploitation, and it has received minimal community discussion or media coverage. Organizations should apply the provided patch (2f45fe860d00990e79e13250251c1dde633f1f89) to mitigate this risk.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2025.4CPE matchmatch criteria
cpe:2.3:a:strlen:lobster:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

1.9LOW

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

Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
VS Confidentiality
NONE
VS Integrity
NONE
VS Availability
LOW
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
PROOF_OF_CONCEPT
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.21%
Probability of exploitation in next 30 days
EPSS Percentile
12.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0022 is in the 54th percentile among its peer group of 15,938 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / aardappel/lobster
Product
github.com / aardappel/lobster/commit/2f45fe860d00990e79e13250251c1dde633f1f89
Patch
github.com / aardappel/lobster/issues/396
Issue TrackingPatchVendor Advisory
github.com / aardappel/lobster/issues/396
Issue TrackingPatchVendor Advisory
github.com / oneafter/0204/blob/main/lob2/repro.lobster
Exploit
vuldb.com
Permissions RequiredVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
vuldb.com
ExploitThird Party AdvisoryVDB Entry