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TI-2026-02464 Aliases CVE-2026-2869GHSA-925f-q35m-63gx

janet-lang janet handleattr specials.c janetc_varset out-of-bounds

Priority MEDIUM 55CWE-119Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · None · Low
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

A vulnerability was identified in janet-lang janet up to 1.40.1. Affected by this vulnerability is the function janetc_varset of the file src/core/specials.c of the component handleattr Handler. The manipulation leads to out-of-bounds read. The attack can only be performed from a local environment. The exploit is publicly available and might be used. Upgrading to version 1.41.0 addresses this issue. The identifier of the patch is 2fabc80151a2b8834ee59cda8a70453f848b40e5. The affected component should be upgraded.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00209 11th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD and the CNA
Fix Fixed janet (janet-lang): 1.41.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
janet-langjanet1.40.0; 1.40.11.41.0Patch availableCNA
  • janet Vendorjanet-lang Affected 1.40.0; 1.40.1 Fixed in 1.41.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:janet-lang:janet:*:*:*:*:*:*:*:*up to 1.40.1Vulnerablejanet-lang
  • cpe:2.3:a:janet-lang:janet:*:*:*:*:*:*:*:* Versions up to 1.40.1 Vulnerable ·janet-lang

Remediation

  • Fix · CNA janet (janet-lang) Fixed in 1.41.0

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-2869
  2. 2026-10-03 Alias added: GHSA-925f-q35m-63gx

References

Exploit 2

Patch 2

Other 1

  • TI-2026-01889 janet-lang janet specials.c janetc_if out-of-bounds CVSS 4.0MEDIUM 4.8
  • TI-2026-01887 janet-lang janet compile.c janetc_pop_funcdef out-of-bounds CVSS 4.0MEDIUM 4.8
  • TI-2022-12896 Janet before 1.22.0 mishandles arrays. CVSS 3.1HIGH 7.5
  • TI-2026-01888 janet-lang janet os.c os_strftime out-of-bounds CVSS 4.0MEDIUM 4.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences