CVE-2026-61387

Summary

In Eclipse Milo versions 1.0.0 through 1.1.4, monitored-item quota accounting is not exception-safe: if item creation fails with an unchecked error, the server-global reservation is not restored. Deeply nested PubSub ExtensionObjects in a CreateMonitoredItems event filter can trigger a StackOverflowError during decoding, allowing an unauthenticated remote client to exhaust a finite global monitored-item quota and prevent all clients from creating new monitored items until restart. Existing monitored items and other server functions remain unaffected.

Affected Software

VendorProductVersion RangeStatus
Eclipse FoundationEclipse Milo1.0.0 < 1.1.5affected

Weaknesses

  • CWE-460: CWE-460
  • CWE-772: CWE-772
  • CWE-400: CWE-400

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: partial

References