CVE-2026-2240 is an out-of-bounds read vulnerability affecting janet-lang janet up to version 1.40.1, specifically within the janetc_pop_funcdef function in src/core/compile.c. This vulnerability has a CVSS score of 6.1 (Medium), indicating a local attack vector with low complexity, requiring low privileges, and resulting in potential high impact to availability and low impact to confidentiality. While a public exploit has been disclosed and a patch (4dd08a4cdef5b1c42d9a2c19fc24412e97ef51d5) is available, there is no evidence of active exploitation, nor are there any known Metasploit, Nuclei, or ExploitDB modules, and it has garnered minimal community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 1.40.1CPE matchmatch criteria | cpe:2.3:a:janet-lang:janet:*:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
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
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.
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.