Vulnerability Description
A vulnerability has been found in wren-lang wren up to 0.4.0. Affected by this issue is the function getByteCountForArguments of the file src/vm/wren_compiler.c. Such manipulation leads to null pointer dereference. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Wren | Wren | <= 0.4.0 |
Related Weaknesses (CWE)
References
- https://github.com/oneafter/0122/blob/main/i1220/reproExploit
- https://github.com/wren-lang/wren/Product
- https://github.com/wren-lang/wren/issues/1220ExploitIssue TrackingVendor Advisory
- https://vuldb.com/?ctiid.348273Permissions RequiredVDB Entry
- https://vuldb.com/?id.348273Third Party AdvisoryVDB Entry
- https://vuldb.com/?submit.761312Third Party AdvisoryVDB Entry
FAQ
What is CVE-2026-3387?
CVE-2026-3387 is a vulnerability with a CVSS score of 3.3 (LOW). A vulnerability has been found in wren-lang wren up to 0.4.0. Affected by this issue is the function getByteCountForArguments of the file src/vm/wren_compiler.c. Such manipulation leads to null pointe...
How severe is CVE-2026-3387?
CVE-2026-3387 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-2026-3387?
Check the references section above for vendor advisories and patch information. Affected products include: Wren Wren.