A vulnerability was determined in janet-lang janet up to 1.40.1. This impacts the function janetc_if of the file src/core/specials.c. Executing a manipulation can lead to out-of-bounds read. The attack needs to be launched locally. The exploit has been publicly disclosed and may be utilized. This patch is called c43e06672cd9dacf2122c99f362120a17c34b391. It is advisable to implement a patch to correct this issue.

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 poc

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

No advisories yet.

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/c43e06672cd9dacf2122c99f362120a17c34b391 cve-icon cve-icon
https://github.com/janet-lang/janet/issues/1700 cve-icon cve-icon
https://github.com/janet-lang/janet/issues/1702 cve-icon cve-icon
https://github.com/oneafter/0123/blob/main/ja2/repro cve-icon cve-icon
https://vuldb.com/?ctiid.344981 cve-icon cve-icon
https://vuldb.com/?id.344981 cve-icon cve-icon
https://vuldb.com/?submit.754495 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 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 09 Feb 2026 17:30:00 +0000

Type Values Removed Values Added
Description A vulnerability was determined in janet-lang janet up to 1.40.1. This impacts the function janetc_if of the file src/core/specials.c. Executing a manipulation can lead to out-of-bounds read. The attack needs to be launched locally. The exploit has been publicly disclosed and may be utilized. This patch is called c43e06672cd9dacf2122c99f362120a17c34b391. It is advisable to implement a patch to correct this issue.
Title janet-lang janet specials.c janetc_if 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: 2026-02-23T10:00:36.959Z

Reserved: 2026-02-09T09:38:32.721Z

Link: CVE-2026-2242

cve-icon Vulnrichment

Updated: 2026-02-09T18:40:24.358Z

cve-icon NVD

Status : Analyzed

Published: 2026-02-09T18:16:08.857

Modified: 2026-02-25T14:36:15.787

Link: CVE-2026-2242

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-02-10T11:35:28Z

Weaknesses