CVE-2026-36501 Details
Description
An issue in the Externalizable.readExternal() component of Controller v12.0.5 allows attackers to cause a Denial of Service (DoS) via a crafted input.
A denial-of-service vulnerability has been identified in OpenDaylight Controller version 12.0.5. The issue arises in the Externalizable.readExternal() method, where certain classes in the Raft implementation improperly handle input sizes. This flaw allows remote attackers to send crafted messages that trigger excessive memory allocation, leading to OutOfMemoryError and a forced JVM shutdown.
It is recommended to add a bounds check before the ImmutableList.builderWithExpectedSize method in the Externalizable classes AE, SS, and ServerConfigurationPayload to prevent excessive memory allocation.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jun 5, 2026CISA-ADP
Assessed Jun 9, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://docs.opendaylight.org/en/stable-titanium/release-notes/projects/controller.html | [email protected] | Release NotesVendor |
| https://github.com/majdlatah/ODL-Raft-Bug/blob/main/README.md | [email protected] | ExploitTechnical Description |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-20 | Improper Input Validation | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| OpenDaylight Controller | 12.0.5 (semver) |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 9, 2026 | CVE Modified | CISA-ADP |
| Jun 5, 2026 | New CVE Received | [email protected] |