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.

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

Access Vector Local

Access Complexity Low

Authentication Single

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00023.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
janet-lang janet affected
Version Status Constraints
1.40.0 affected
—
1.40.1 affected
—

Configuration 1 [-]

cpe:2.3:a:janet-lang:janet:*:*:*:*:*:*:*:*

No data.

Vendor Product Confidence Versions
Janet-lang Janet — —

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Tracking

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/janet-lang/janet/ cve-icon cve-icon
https://github.com/janet-lang/janet/commit/0f285855f0e34f9183956be5f16e045f54626bff cve-icon cve-icon
https://github.com/janet-lang/janet/issues/1701 cve-icon cve-icon
https://github.com/janet-lang/janet/issues/1701#event-4446770461 cve-icon cve-icon
https://github.com/oneafter/0123/blob/main/ja3/repro cve-icon cve-icon
https://vuldb.com/?ctiid.344980 cve-icon cve-icon
https://vuldb.com/?id.344980 cve-icon cve-icon
https://vuldb.com/?submit.753156 cve-icon cve-icon
History

Wed, 25 Feb 2026 14:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:janet-lang:janet:*:*:*:*:*:*:*:*

Tue, 10 Feb 2026 12:45:00 +0000

Type Values Removed Values Added
First Time appeared Janet-lang
Janet-lang janet
Vendors & Products Janet-lang
Janet-lang janet

Mon, 09 Feb 2026 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 09 Feb 2026 16:30:00 +0000

Type Values Removed Values Added
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.
Title janet-lang janet os.c os_strftime out-of-bounds
Weaknesses CWE-119
CWE-125
References
Metrics cvssV2_0

{'score': 1.7, 'vector': 'AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C'}

cvssV3_0

{'score': 3.3, 'vector': 'CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C'}

cvssV3_1

{'score': 3.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C'}

cvssV4_0

{'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/E:P'}
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-02-23T10:00:21.668Z

Reserved: 2026-02-09T09:38:29.872Z

Link: CVE-2026-2241

cve-icon Vulnrichment

Updated: 2026-02-09T16:39:18.899Z

cve-icon NVD

Status : Analyzed

Published: 2026-02-09T18:16:08.660

Modified: 2026-02-25T14:40:44.000

Link: CVE-2026-2241

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-02-10T11:35:29Z

Weaknesses