janet-lang janet os.c os_strftime out-of-bounds_CVE-2026-2241

4.8 / 10

MEDIUM

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

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.

Basic Information

ID CVE-2026-2241

Source VulDB

Published Feb 9, 2026 at 16:02

Affected Product

Vendor janet-lang

Product janet

Version 1.40.0

Affected Versions janet-lang janet 1.40.0
janet-lang janet 1.40.1

CWE Classification

CWE-125 CWE-119

References

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    "lastseen": "",
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    "published": "2026-02-09T16:02:08.720Z",
    "modified": "2026-02-09T16:02:08.720Z",
    "type": "cve",
    "title": "janet-lang janet os.c os_strftime out-of-bounds",
    "source": "VulDB",
    "references": "https://vuldb.com/?id.344980\nhttps://vuldb.com/?ctiid.344980\nhttps://vuldb.com/?submit.753156\nhttps://github.com/janet-lang/janet/issues/1701\nhttps://github.com/janet-lang/janet/issues/1701#event-4446770461\nhttps://github.com/oneafter/0123/blob/main/ja3/repro\nhttps://github.com/janet-lang/janet/commit/0f285855f0e34f9183956be5f16e045f54626bff\nhttps://github.com/janet-lang/janet/",
    "id": "CVE-2026-2241",
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    "cwe": [
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    "cvelist": null,
    "sourceData": "janet-lang janet 1.40.0\njanet-lang janet 1.40.1",
    "sourceHref": "",
    "cvss": {
        "score": 4.8,
        "severity": "MEDIUM",
        "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/E:P",
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