CVE-2026-2242

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Source
https://cve.org/CVERecord?id=CVE-2026-2242
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-2242.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-2242
Published
2026-02-09T17:02:09.705Z
Modified
2026-07-22T03:08:40.624789Z
Severity
  • 1.9 (Low) CVSS_V4 - 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 CVSS Calculator
Summary
janet-lang janet specials.c janetc_if out-of-bounds
Details

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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/2xxx/CVE-2026-2242.json",
    "cna_assigner": "VulDB",
    "cwe_ids": [
        "CWE-119",
        "CWE-125"
    ]
}
References

Affected packages

Git / github.com/janet-lang/janet

Affected ranges

Type
GIT
Repo
https://github.com/janet-lang/janet
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
c43e06672cd9dacf2122c99f362120a17c34b391
Database specific 
{
    "cpe": "cpe:2.3:a:janet-lang:janet:*:*:*:*:*:*:*:*",
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "1.40.1"
        }
    ]
}

Affected versions

0.*
0.1.0
0.2.0
0.3.0
1.*
1.19.1-rc1
1.40.0
1.40.1
v0.*
v0.4.0
v0.4.1
v0.5.0
v0.6.0
v1.*
v1.0.0
v1.1.0
v1.13.0
v1.13.1
v1.14.1
v1.14.2
v1.15.0
v1.15.1
v1.15.2
v1.15.3
v1.15.4
v1.15.5
v1.16.0
v1.16.1
v1.17.0
v1.17.1
v1.17.2
v1.18.0
v1.18.1
v1.19.0
v1.19.1
v1.19.2
v1.2.0
v1.20.0
v1.21.0
v1.21.1
v1.21.2
v1.22.0
v1.23.0
v1.24.0
v1.24.1
v1.25.0
v1.25.1
v1.26.0
v1.27.0
v1.28.0
v1.29.0
v1.29.1
v1.30.0
v1.31.0
v1.32.0
v1.32.1
v1.33.0
v1.34.0
v1.35.0
v1.35.1
v1.35.2
v1.36.0
v1.37.0
v1.37.1
v1.38.0
v1.39.0
v1.39.1
v1.4.0
v1.40.0
v1.40.1
v1.5.0
v1.5.1
v1.6.0
v1.7.0
v1.8.0
v1.8.1
v1.9.0
v1.9.1

Database specific

vanir_signatures 
[
    {
        "digest": {
            "length": 2286.0,
            "function_hash": "16514016381390146507687179303033039226"
        },
        "signature_version": "v1",
        "source": "https://github.com/janet-lang/janet/commit/c43e06672cd9dacf2122c99f362120a17c34b391",
        "signature_type": "Function",
        "target": {
            "function": "janetc_if",
            "file": "src/core/specials.c"
        },
        "id": "CVE-2026-2242-96cdc6fc",
        "deprecated": false
    },
    {
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "134961270482347083615491625704226475582",
                "337414601554390145901963875142329261540",
                "257063007698266830715566662527555059207",
                "251430999923571613545547465521654561525",
                "174659958993681944712580303641614256449"
            ]
        },
        "signature_version": "v1",
        "source": "https://github.com/janet-lang/janet/commit/c43e06672cd9dacf2122c99f362120a17c34b391",
        "signature_type": "Line",
        "target": {
            "file": "src/core/specials.c"
        },
        "id": "CVE-2026-2242-d06092f9",
        "deprecated": false
    }
]
vanir_signatures_modified 
"2026-07-22T03:08:40Z"
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-2242.json"