CVE-2026-2858

3.3 LOW
Published: February 20, 2026 Modified: February 26, 2026
View on NVD

Description

A vulnerability was identified in wren-lang wren up to 0.4.0. This affects the function peekChar of the file src/vm/wren_compiler.c of the component Source File Parser. Such manipulation leads to out-of-bounds read. The attack needs to be performed locally. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/oneafter/0122/blob/main/i1217/repro
Source: cna@vuldb.com
Issue Tracking Product
https://github.com/wren-lang/wren/
Source: cna@vuldb.com
Product
https://github.com/wren-lang/wren/issues/1217
Source: cna@vuldb.com
Issue Tracking
https://vuldb.com/?ctiid.347097
Source: cna@vuldb.com
Permissions Required VDB Entry
https://vuldb.com/?id.347097
Source: cna@vuldb.com
Third Party Advisory VDB Entry
https://vuldb.com/?submit.754489
Source: cna@vuldb.com
Third Party Advisory VDB Entry

6 reference(s) from NVD

Quick Stats

CVSS v3 Score
3.3 / 10.0
EPSS (Exploit Probability)
0.0%
2th percentile
Exploitation Status
Not in CISA KEV

Affected Vendors

wren