CVE-2026-2241

medium

Description

A vulnerability was found in janet-lang janet up to 1.40.1. This affects the function os_strftime of the file src/core/os.c. Performing a manipulation results in out-of-bounds read. The attack must be initiated from a local position. The exploit has been made public and could be used. The patch is named 0f285855f0e34f9183956be5f16e045f54626bff. To fix this issue, it is recommended to deploy a patch.

References

https://vuldb.com/?submit.753156

https://vuldb.com/?id.344980

https://vuldb.com/?ctiid.344980

https://github.com/oneafter/0123/blob/main/ja3/repro

https://github.com/janet-lang/janet/issues/1701#event-4446770461

https://github.com/janet-lang/janet/issues/1701

https://github.com/janet-lang/janet/commit/0f285855f0e34f9183956be5f16e045f54626bff

https://github.com/janet-lang/janet/

Details

Source: Mitre, NVD

Published: 2026-02-09

Updated: 2026-02-09

Risk Information

CVSS v2

Base Score: 1.7

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:P

Severity: Low

CVSS v3

Base Score: 3.3

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Severity: Low

CVSS v4

Base Score: 4.8

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Severity: Medium

EPSS

EPSS: 0.00013