CVE-2026-3386

LOW 3.3

wren-lang wren wren_compiler.c emitOp out-of-bounds

CVSS Score

3.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-125 CWE-119
Vendor	wren-lang
Product	wren
Published	Mar 1, 2026
Last Updated	Mar 2, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

wren-lang / wren

0.1 0.2 0.3 0.4.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/?id.348272 vuldb.com: https://vuldb.com/?ctiid.348272 vuldb.com: https://vuldb.com/?submit.761306 github.com: https://github.com/wren-lang/wren/issues/1219 github.com: https://github.com/oneafter/0122/blob/main/i1219/repro github.com: https://github.com/wren-lang/wren/

Credits

🔍 Oneafter (VulDB User)