Description
A vulnerability was determined in janet-lang janet up to 1.40.1. This impacts the function janetc_if of the file src/core/specials.c. Executing a manipulation can lead to out-of-bounds read. The attack needs to be launched locally. The exploit has been publicly disclosed and may be utilized. This patch is called c43e06672cd9dacf2122c99f362120a17c34b391. It is advisable to implement a patch to correct this issue.
References (8)
Core 8
Core References
Permissions Required, VDB Entry vdb-entry
technical-description
https://vuldb.com/?id.344981
Permissions Required, VDB Entry signature
permissions-required
https://vuldb.com/?ctiid.344981
Permissions Required, VDB Entry third-party-advisory
https://vuldb.com/?submit.754495
Issue Tracking issue-tracking
https://github.com/janet-lang/janet/issues/1700
Issue Tracking issue-tracking
https://github.com/janet-lang/janet/issues/1702
Various Sources exploit
https://github.com/oneafter/0123/blob/main/ja2/repro
Various Sources product
https://github.com/janet-lang/janet/
Scores
CVSS v3
3.3
EPSS
0.0016
EPSS Percentile
5.3%
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 09, 2026
Tracked Since
Feb 18, 2026