Uncontrolled resource consumption in Eclipse Milo
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-400.
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Eclipse Foundation | Eclipse Milo | 1.0.0 to before 1.1.5 | 1.1.5 | Patch available | CNA |
- Eclipse Milo VendorEclipse Foundation Affected 1.0.0 to before 1.1.5 Fixed in 1.1.5 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:eclipse:milo:*:*:*:*:*:*:*:* | 1.0.0 to before 1.1.5 | Vulnerable | Eclipse Foundation |
- cpe:2.3:a:eclipse:milo:*:*:*:*:*:*:*:* Versions 1.0.0 to before 1.1.5 Vulnerable ·Eclipse Foundation
Remediation
- Fix · CNA Eclipse Milo (Eclipse Foundation) Fixed in 1.1.5
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Eclipse Milo 1.1.5
3 records Highest priority Priority MEDIUM 2 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-44975 Incorrect authorization in Eclipse MiloPriority MEDIUM 44
- TI-2026-41830 Missing authorization in Eclipse MiloPriority MEDIUM 44
Timeline
- 2026-10-02 Threatist record created from CVE-2026-61387
- 2026-10-03 Alias added: GHSA-54cr-fx8f-gpc5
References
Patch 2
More Eclipse Foundation Milo vulnerabilities
- TI-2026-45121 Memory leak in Eclipse Milo CVSS 4.0HIGH 8.7
- TI-2026-44975 Incorrect authorization in Eclipse Milo CVSS 4.0HIGH 8.7
- TI-2026-41830 Missing authorization in Eclipse Milo CVSS 4.0HIGH 8.8
- TI-2026-42787 In Eclipse Milo versions 0.6.0 through 1.1.4, username-token processing returns… CVSS 4.0CRITICAL 9.1
- TI-2026-45120 Missing authorization in Eclipse Milo CVSS 4.0MEDIUM 6.9
- TI-2022-09453 Denial of service (DoS) in org.eclipse.milo:sdk-server CVSS 3.1HIGH 7.5
Sources
- CVE-2026-61387 · CVE Program
- CVE-2026-61387 · NVD
- FIRST EPSS
- GHSA-54cr-fx8f-gpc5 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences