CVE-2026-2242

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.

CVSS v3 3.3 LOW
CVSS v2.0 1.7 LOW

3.3^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.8 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

1.7^/10

CVSS v2.0 : LOW

Vector : AV:L/AC:L/Au:S/C:N/I:N/A:P

Exploitability : 3.1 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://github.com/janet-lang/janet/	Product
https://github.com/janet-lang/janet/commit/c43e06672cd9dacf2122c99f362120a17c34b391	Patch
https://github.com/janet-lang/janet/issues/1700	Exploit Issue Tracking
https://github.com/janet-lang/janet/issues/1702	Exploit Issue Tracking
https://github.com/oneafter/0123/blob/main/ja2/repro	Exploit
https://vuldb.com/?ctiid.344981	Permissions Required VDB Entry
https://vuldb.com/?id.344981	Third Party Advisory VDB Entry
https://vuldb.com/?submit.754495	Third Party Advisory VDB Entry

Configurations

Configuration 1 (hide)

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

History

No history.

Information

Published : 2026-02-09 18:16

Updated : 2026-06-17 10:30

NVD link : CVE-2026-2242

Mitre link : CVE-2026-2242

CVE.ORG link : CVE-2026-2242

JSON object : View

Products Affected

janet-lang

janet

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-125

Out-of-bounds Read

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