Vulnerability Details CVE-2026-2240
A vulnerability has been found in janet-lang janet up to 1.40.1. The impacted element is the function janetc_pop_funcdef of the file src/core/compile.c. Such manipulation leads to out-of-bounds read. The attack must be carried out locally. The exploit has been disclosed to the public and may be used. The name of the patch is 4dd08a4cdef5b1c42d9a2c19fc24412e97ef51d5. A patch should be applied to remediate this issue.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 2.6%
CVSS Severity
CVSS v3 Score 3.3
CVSS v2 Score 1.7
References
- https://github.com/janet-lang/janet/
- https://github.com/janet-lang/janet/commit/4dd08a4cdef5b1c42d9a2c19fc24412e97ef51d5
- https://github.com/janet-lang/janet/issues/1702
- https://github.com/janet-lang/janet/issues/1702#issuecomment-3790473369
- https://github.com/oneafter/0123/blob/main/ja4/repro
- https://vuldb.com/?ctiid.344979
- https://vuldb.com/?id.344979
- https://vuldb.com/?submit.753155
Products affected by CVE-2026-2240
-
cpe:2.3:a:janet-lang:janet:*