CVE-2026-2660: fascinatedbox lily

Vulnerability summary

CVE-2026-2660 is a high (CVSS 7.8) vulnerability in fascinatedbox lily. EPSS estimates a 0.23% chance of exploitation in the next 30 days, higher than 13.1% of scored vulnerabilities. 3 public exploits are recorded.

Timeline

1. 18-02-2026
   PublishedVulnerability first disclosed.
2. 23-02-2026
   Last modifiedVulnerability information updated.

Description

A vulnerability was identified in FascinatedBox lily up to 2.3. Affected by this issue is the function shorthash_for_name of the file src/lily_symtab.c. The manipulation leads to use after free. Local access is required to approach this attack. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
• CWE-416Use After FreeThe product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.