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TI-2026-71338 Aliases CVE-2026-49483

Code for IBMi accepts unverified components, allowing code execution

Priority LOW 39CWE-345Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Passive
Attack complexity
Low
Attack requirements
Present
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-345.

Summary

Code for IBMi (codefori vscode-ibmi) before 3.0.1 accepts IBMi components after checking only that a procedure exists, which does not reliably verify component integrity (CWE-345). Components installed with broad public permissions can be altered by another local account with low privileges. A later connection then runs the altered program, such as GETMBRINFO, under the connecting account, so the connecting user executes the attacker's code.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

Code for IBMi is a Visual Studio Code extension for maintaining and compiling ILE languages on the IBMi platform. Prior to 3.0.1, IBMi components implementing IBMiComponent were accepted after checking that a procedure existed without reliably verifying component integrity. Components installed with broad public permissions allow another local account to alter a program such as GETMBRINFO. A later connection can execute the altered program under the connecting account because the LONG_COMMENT marker alone does not establish integrity. This issue is fixed in version 3.0.1.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00142 3rd percentileScored 2026-11-07
Fix Fixed vscode-ibmi (codefori): 3.0.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
codeforivscode-ibmibefore 3.0.13.0.1Patch availableCNA
  • vscode-ibmi Vendorcodefori Affected before 3.0.1 Fixed in 3.0.1 Patch available CNA

Remediation

Upgrade codefori vscode-ibmi (Code for IBMi) to version 3.0.1, which fixes the issue.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA vscode-ibmi (codefori) Fixed in 3.0.1

Timeline

  1. 2026-10-12 Threatist record created from CVE-2026-49483
  2. 2026-10-13 Priority changed: MEDIUM → LOW
  3. 2026-10-13 CISA SSVC decision points changed

References

Other 2

  • TI-2026-71339 Code for IBM i leaves temporary files readable by other local users CVSS 4.0MEDIUM 5.1

Sources

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