CVE-2026-2240

Description

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.

References

https://vuldb.com/?submit.753155

https://vuldb.com/?id.344979

https://vuldb.com/?ctiid.344979

https://github.com/oneafter/0123/blob/main/ja4/repro

https://github.com/janet-lang/janet/issues/1702#issuecomment-3790473369

https://github.com/janet-lang/janet/issues/1702

https://github.com/janet-lang/janet/commit/4dd08a4cdef5b1c42d9a2c19fc24412e97ef51d5

https://github.com/janet-lang/janet/

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4