CVE-2026-2241

Name: CVE-2026-2241
Creator: NVD / NIST
Published: 2026-02-09T18:16:08.66+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 1.9/10EPSS 0.17%

Last modified Jun 17, 2026

CVE-2026-2241 is a low-severity vulnerability rated 1.9/10 on the CVSS scale. 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. EPSS estimates a 0.17% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

6.1/10

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

CVSS 4.0

1.9/10

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/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.17%

6.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Janet-Lang	Janet	<= 1.40.1

References

https://github.com/janet-lang/janet/Product
https://github.com/janet-lang/janet/commit/0f285855f0e34f9183956be5f16e045f54626bffPatch
https://github.com/janet-lang/janet/issues/1701Exploit, Issue Tracking
https://github.com/janet-lang/janet/issues/1701#event-4446770461Exploit, Issue Tracking
https://github.com/oneafter/0123/blob/main/ja3/reproExploit
https://vuldb.com/?ctiid.344980Permissions Required, VDB Entry
https://vuldb.com/?id.344980Third Party Advisory, VDB Entry
https://vuldb.com/?submit.753156Third Party Advisory, VDB Entry

Timeline

Published: Feb 9, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-2241?

How severe is CVE-2026-2241?

CVE-2026-2241 has a CVSS score of 1.9/10 (LOW severity). The EPSS model estimates a 0.17% probability of exploitation in the next 30 days.

How do I fix CVE-2026-2241?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-2241?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST