CVE-2026-3386

low-risk
Published 2026-03-01

A flaw has been found in wren-lang wren up to 0.4.0. Affected by this vulnerability is the function emitOp of the file src/vm/wren_compiler.c. This manipulation causes out-of-bounds read. It is possible to launch the attack on the local host. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Do I need to act?

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0.02% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.3/10 Low
LOCAL / LOW complexity

Affected Products (1)

Wren

Affected Vendors

Wren

References (6)

Exploit https://github.com/oneafter/0122/blob/main/i1219/repro
Product https://github.com/wren-lang/wren/
Exploit https://github.com/wren-lang/wren/issues/1219
Permissions Required https://vuldb.com/?ctiid.348272
Third Party Advisory https://vuldb.com/?id.348272
Third Party Advisory https://vuldb.com/?submit.761306
18
/ 100
low-risk
Severity 13/34 · Low
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal