Vulnerability 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.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Janet-Lang | Janet | <= 1.40.1 |
Related Weaknesses (CWE)
References
- https://github.com/janet-lang/janet/Product
- https://github.com/janet-lang/janet/commit/4dd08a4cdef5b1c42d9a2c19fc24412e97ef5Patch
- https://github.com/janet-lang/janet/issues/1702ExploitIssue Tracking
- https://github.com/janet-lang/janet/issues/1702#issuecomment-3790473369ExploitIssue Tracking
- https://github.com/oneafter/0123/blob/main/ja4/reproExploit
- https://vuldb.com/?ctiid.344979Permissions RequiredVDB Entry
- https://vuldb.com/?id.344979Third Party AdvisoryVDB Entry
- https://vuldb.com/?submit.753155Third Party AdvisoryVDB Entry
FAQ
What is CVE-2026-2240?
CVE-2026-2240 is a vulnerability with a CVSS score of 3.3 (LOW). 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. ...
How severe is CVE-2026-2240?
CVE-2026-2240 has been rated LOW with a CVSS base score of 3.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-2240?
Check the references section above for vendor advisories and patch information. Affected products include: Janet-Lang Janet.