CVE-2026-3386

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.

CVSS v3 3.3 LOW
CVSS v2.0 1.7 LOW

3.3^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.8 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

1.7^/10

CVSS v2.0 : LOW

Vector : AV:L/AC:L/Au:S/C:N/I:N/A:P

Exploitability : 3.1 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://github.com/oneafter/0122/blob/main/i1219/repro	Exploit
https://github.com/wren-lang/wren/	Product
https://github.com/wren-lang/wren/issues/1219	Exploit Issue Tracking Vendor Advisory
https://vuldb.com/?ctiid.348272	Permissions Required VDB Entry
https://vuldb.com/?id.348272	Third Party Advisory VDB Entry
https://vuldb.com/?submit.761306	Third Party Advisory VDB Entry

Configurations

Configuration 1 (hide)

cpe:2.3:a:wren:wren:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-01 09:15

Updated : 2026-03-05 01:53

NVD link : CVE-2026-3386

Mitre link : CVE-2026-3386

CVE.ORG link : CVE-2026-3386

JSON object : View

Products Affected

wren

wren

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-125

Out-of-bounds Read

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