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© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-2258

20
FAUCET Score

CVE-2026-2258 is a local memory corruption vulnerability affecting the WaveFunctionCollapse function in aardappel lobster versions up to 2025.4. This flaw, rated Medium severity (CVSS 5.5), allows an authenticated local attacker to cause a denial of service through memory manipulation. While an exploit has been published, there is no evidence of active exploitation, and it has received minimal community discussion or media coverage. Organizations are advised to apply the provided patch (c2047a33e1ac2c42ab7e8704b33f7ea518a11ffd) 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
0.18%
Probability of exploitation in next 30 days
EPSS Percentile
8.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0019 is in the 43rd percentile among its peer group of 15,940 CVEs.

Social Chatter

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/c2047a33e1ac2c42ab7e8704b33f7ea518a11ffd
Patch
github.com / aardappel/lobster/issues/395
PatchVendor Advisory
github.com / aardappel/lobster/issues/395
PatchVendor Advisory
github.com / oneafter/0204/blob/main/lob1/repro.lobster
Product
vuldb.com
Permissions RequiredVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
vuldb.com
ExploitThird Party AdvisoryVDB Entry