Deserialization of Untrusted Data vulnerability in Apache Storm.
Versions Affected:
before 2.8.6.
Description:
When processing topology credentials submitted via the Nimbus Thrift API, Storm deserializes the base64-encoded TGT blob using ObjectInputStream.readObject() without any class filtering or validation. An authenticated user with topology submission rights could supply a crafted serialized object in the "TGT" credential field, leading to remote code execution in both the Nimbus and Worker JVMs.
Mitigation:
2.x users should upgrade to 2.8.6.
Users who cannot upgrade immediately should monkey-patch an ObjectInputFilter allow-list to ClientAuthUtils.deserializeKerberosTicket() restricting deserialized classes to javax.security.auth.kerberos.KerberosTicket and its known dependencies. A guide on how to do this is available in the release notes of 2.8.6.
Credit: This issue was discovered by K.
References
| Link | Resource |
|---|---|
| https://storm.apache.org/2026/04/12/storm286-released.html | Release Notes Vendor Advisory |
| http://www.openwall.com/lists/oss-security/2026/04/12/6 | Mailing List Third Party Advisory |
Configurations
History
15 Apr 2026, 15:54
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Apache
Apache storm |
|
| CPE | cpe:2.3:a:apache:storm:*:*:*:*:*:*:*:* | |
| References | () https://storm.apache.org/2026/04/12/storm286-released.html - Release Notes, Vendor Advisory | |
| References | () http://www.openwall.com/lists/oss-security/2026/04/12/6 - Mailing List, Third Party Advisory |
13 Apr 2026, 15:17
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 8.8 |
13 Apr 2026, 10:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-04-13 10:16
Updated : 2026-04-15 15:54
NVD link : CVE-2026-35337
Mitre link : CVE-2026-35337
CVE.ORG link : CVE-2026-35337
JSON object : View
Products Affected
apache
- storm
CWE
CWE-502
Deserialization of Untrusted Data