CVE-2026-2242

janet-lang janet specials.c janetc_if out-of-bounds

MEDIUM
6.1
CVSS Score
Published: February 9, 2026 at 05:02 PM UTC
Updated: June 17, 2026 at 10:30 AM UTC
1 product affected across 1 vendorJanet

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.2%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (8)

VDB EntryTechnical DescriptionThird Party Advisory
Source: cverecord
https://vuldb.com/?id.344981
SignaturePermissions RequiredVDB Entry
Source: cverecord
https://vuldb.com/?ctiid.344981
Third Party AdvisoryVDB Entry
Source: cverecord
https://vuldb.com/?submit.754495
Issue TrackingExploit
Source: cverecord
https://github.com/janet-lang/janet/issues/1700
Issue TrackingExploit
Source: cverecord
https://github.com/janet-lang/janet/issues/1702
Product
Source: cverecord
https://github.com/janet-lang/janet/

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-125CWE-119

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