Read the docs
TI-2026-79066 Aliases CVE-2026-114574GHSA-336g-g7w5-w9wv

Information disclosure in massCode Local HTTP Service

Priority MEDIUM 57CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Information disclosure, Security bypass
Confidentiality · integrity · availability
Low · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-200 and CWE-284.

Summary

massCodeIO massCode from 5.10 has a flaw in the Local HTTP Service in src/main/api/index.ts that leads to information disclosure (CWE-200). A remote attacker can exploit it without privileges, but the attack requires some user interaction. A public exploit has been disclosed and is linked in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

A security vulnerability has been detected in massCodeIO massCode 5.10. Affected is an unknown function of the file src/main/api/index.ts of the component Local HTTP Service. Such manipulation leads to information disclosure. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. The name of the patch is d25d8fa3f5a1e34285c8634f18729650c0c05cda. It is advisable to implement a patch to correct this issue.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00309 23rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

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
massCodeIOmassCode5.10—No fix listedCNA
  • massCode VendormassCodeIO Affected 5.10 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:masscode:masscode:*:*:*:*:*:*:*:*——Masscode
  • cpe:2.3:a:masscode:masscode:*:*:*:*:*:*:*:* Versions — — ·Masscode

Remediation

The sources list no fixed version for massCode. The sources name patch d25d8fa3f5a1e34285c8634f18729650c0c05cda for this issue and advise applying it.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

  1. 2026-10-21 Threatist record created from CVE-2026-114574
  2. 2026-10-22 Alias added: GHSA-336g-g7w5-w9wv
  3. 2026-10-28 CISA SSVC decision points changed
  4. 2026-10-28 Priority changed: LOW → MEDIUM

References

Exploit 1

Patch 2

Other 1

Sources

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