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TI-2026-71339 Aliases CVE-2026-49484

Code for IBM i leaves temporary files readable by other local users

Priority MEDIUM 56CWE-377Published · Updated

Key facts

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

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

Summary

Code for IBM i, a Visual Studio Code extension for maintaining ILE languages on IBM i, is affected before 3.0.1. Its Object Browser stores downloads and edited file content in the shared /tmp directory without reliable cleanup, an insecure temporary file issue (CWE-377). On systems where other local accounts can access /tmp, a local user with low privileges can read leftover file contents after these operations.

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

Description from the CNA

Code for IBM i is a Visual Studio Code extension for maintaining and compiling ILE languages on the IBMi platform. Prior to 3.0.1, src/ui/views/objectBrowser.ts stores Object Browser downloads and the edit-save flow content in the shared /tmp directory without reliable cleanup. On systems where /tmp is accessible to other local accounts, file contents remain readable after download or editing operations. This issue is fixed in version 3.0.1.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00296 22nd percentileScored 2026-11-08
Fix Fixed vscode-ibmi (codefori): 3.0.1

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
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

Update the vscode-ibmi package from codefori to version 3.0.1 or later, 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-2026-49484
  2. 2026-10-16 CISA SSVC decision points changed
  3. 2026-10-16 Priority changed: LOW → MEDIUM

References

Other 2

  • TI-2026-71338 Code for IBMi accepts unverified components, allowing code execution CVSS 4.0HIGH 8.9

Sources

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