CVE-2026-2242 (GCVE-0-2026-2242)
Vulnerability from cvelistv5 – Published: 2026-02-09 17:02 – Updated: 2026-02-23 10:00 X_Open Source
VLAI
EPSS
VEX
Title
janet-lang janet specials.c janetc_if out-of-bounds
Summary
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.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-09 18:40 UTC
Assigner
VulDB
CNA
References
8 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.344981 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.344981 | signaturepermissions-required |
| https://vuldb.com/?submit.754495 | third-party-advisory |
| https://github.com/janet-lang/janet/issues/1700 | issue-tracking |
| https://github.com/janet-lang/janet/issues/1702 | issue-tracking |
| https://github.com/oneafter/0123/blob/main/ja2/repro | exploit |
| https://github.com/janet-lang/janet/commit/c43e06… | patch |
| https://github.com/janet-lang/janet/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| janet-lang | janet |
Affected:
1.40.0
Affected: 1.40.1 |
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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