Description
A vulnerability was identified in janet-lang janet up to 1.40.1. Affected by this vulnerability is the function janetc_varset of the file src/core/specials.c of the component handleattr Handler. The manipulation leads to out-of-bounds read. The attack can only be performed from a local environment. The exploit is publicly available and might be used. Upgrading to version 1.41.0 addresses this issue. The identifier of the patch is 2fabc80151a2b8834ee59cda8a70453f848b40e5. The affected component should be upgraded.
References (8)
Core 8
Core References
Permissions Required, VDB Entry vdb-entry
technical-description
https://vuldb.com/?id.347106
Permissions Required, VDB Entry signature
permissions-required
https://vuldb.com/?ctiid.347106
Permissions Required, VDB Entry third-party-advisory
https://vuldb.com/?submit.754589
Issue Tracking issue-tracking
https://github.com/janet-lang/janet/issues/1699
Various Sources exploit
https://github.com/oneafter/0123/blob/main/ja1/repro
Release Notes patch
https://github.com/janet-lang/janet/releases/tag/v1.41.0
Various Sources product
https://github.com/janet-lang/janet/
Scores
CVSS v3
3.3
EPSS
0.0018
EPSS Percentile
7.7%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-119
CWE-125
Status
published
Products (1)
janet-lang/janet
< 1.40.1
Published
Feb 21, 2026
Tracked Since
Feb 21, 2026