CVE-2026-2241
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Out-of-Bounds Read in janet-lang os_strftime Function

Publication date: 2026-02-09

Last updated on: 2026-04-29

Assigner: VulDB

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.
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Meta Information
Published
2026-02-09
Last Modified
2026-04-29
Generated
2026-06-16
AI Q&A
2026-02-09
EPSS Evaluated
2026-06-15
NVD
CVE-2026-2241
EUVD
EUVD-2026-6895
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
janet-lang janet to 1.40.1 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-119 The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
CWE-125 The product reads data past the end, or before the beginning, of the intended buffer.
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Executive Summary

This vulnerability exists in the janet-lang janet software up to version 1.40.1, specifically in the function os_strftime located in the file src/core/os.c.

It involves an out-of-bounds read caused by manipulation of the function's input or behavior.

The attack must be performed locally, meaning the attacker needs local access to the system to exploit this issue.

A patch has been released to fix this vulnerability.

Impact Analysis

The vulnerability allows an out-of-bounds read which can potentially lead to a denial of service or other unexpected behavior.

Since the attack requires local access and the CVSS scores are low (BaseScore 1.7 to 3.3 depending on version), the impact is limited.

There is no indication of confidentiality or integrity loss, but availability could be affected.

Compliance Impact

I don't know

Detection Guidance

I don't know

Mitigation Strategies

To mitigate this vulnerability, it is recommended to deploy the patch named 0f285855f0e34f9183956be5f16e045f54626bff.

Since the attack must be initiated from a local position, limiting local access to trusted users can also reduce risk.

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