CVE-2026-2869

LOW EPSS 7.7%
Published Feb 21, 20264mo ago · Modified Jun 17, 20261w ago
1.9 CVSS 4.0
Low
Find Similar
Published Feb 21, 2026 4mo ago
Last Modified Jun 17, 2026 1w ago

Description

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.

CVSS Details

Base Score
1.9
Exploitability
—
Impact
—
Vector string
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
7.7% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 2

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer Memory Safety
CWE-125 Out-of-bounds Read Memory Safety

Affected Products 1

VendorProductVersionRange
janet-langjanet* ≤1.40.1

References 8

  • github.com https://github.com/janet-lang/janet/
    Product
  • github.com https://github.com/janet-lang/janet/commit/2fabc80151a2b8834ee59cda8a70453f848b40e5
    Patch
  • github.com https://github.com/janet-lang/janet/issues/1699
    ExploitIssue Tracking
  • github.com https://github.com/janet-lang/janet/releases/tag/v1.41.0
    Release Notes
  • github.com https://github.com/oneafter/0123/blob/main/ja1/repro
    Exploit
  • vuldb.com https://vuldb.com/?ctiid.347106
    Permissions RequiredVDB Entry
  • vuldb.com https://vuldb.com/?id.347106
    Third Party AdvisoryVDB Entry
  • vuldb.com https://vuldb.com/?submit.754589
    Third Party AdvisoryVDB Entry

Remediation

  • github.com https://github.com/janet-lang/janet/commit/2fabc80151a2b8834ee59cda8a70453f848b40e5
    Patch