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CVE-2026-2660

24
FAUCET Score

CVE-2026-2660 is a use-after-free vulnerability affecting FascinatedBox lily up to version 2.3, specifically within the shorthash_for_name function in src/lily_symtab.c. This high-severity vulnerability (CVSS 7.8) requires local access and low privileges to exploit, potentially leading to high impact on confidentiality, integrity, and availability. While a public exploit is available, there is no evidence of active exploitation, nor significant community discussion or media coverage. The vendor has been notified but has not yet responded.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.3CPE matchmatch criteria
cpe:2.3:a:lily-lang:lily:*:*:*:*:*:*:*:*

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
11.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0021 is in the 39th percentile among its peer group of 17,061 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / FascinatedBox/lily
Product
github.com / FascinatedBox/lily/issues/385
ExploitIssue TrackingThird Party Advisory
github.com / oneafter/0122/blob/main/i385/repro.lily
Exploit
vuldb.com
Permissions RequiredVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
vuldb.com
ExploitThird Party AdvisoryVDB Entry