← Vulnerability feed

Vulnerability record · CVE-2026-35337 · published 13 April 2026

CVE-2026-35337: Apache storm deserialization of untrusted data vulnerability

Apache · Storm

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.

8.8 CVSS 3.1 High EPSS 1.1% · top 37.0% CWE-502 · Deserialization of untrusted data
8.8CVSS 3.1 base score
1.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://storm.apache.org/2026/04/12/storm286-released.html Release NotesVendor Advisory
http://www.openwall.com/lists/oss-security/2026/04/12/6 Mailing ListThird Party Advisory

Track CVE-2026-35337 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2021-40865Apache Storm supervisor worker unsafe deserialization RCEApache Storm's supervisor worker services deserialize untrusted data, allowing an unauthenticated attacker to execute arbitrary code. The flaw is rat…EPSS 64%analysed9.8CVE-2021-38294Apache Storm Nimbus getTopologyHistory pre-auth command injectionApache Storm's Nimbus getTopologyHistory service fails to neutralize input in a Thrift request, allowing OS command injection. The flaw affects Storm…EPSS 84%analysed9.8CVE-2018-11779Apache storm deserialization of untrusted data vulnerabilityIn Apache Storm versions 1.1.0 to 1.2.2, when the user is using the storm-kafka-client or storm-kafka modules, it is possible to cause the Storm UI d…EPSS 3.5%9.8CVE-2015-3188Apache storm permissions and access controls vulnerabilityThe UI daemon in Apache Storm 0.10.0 before 0.10.0-beta1 allows remote attackers to execute arbitrary code via unspecified vectors.EPSS 14%8.8CVE-2018-1331Apache storm vulnerabilityIn Apache Storm 0.10.0 through 0.10.2, 1.0.0 through 1.0.6, 1.1.0 through 1.1.2, and 1.2.0 through 1.2.1, an attacker with access to a secure storm c…EPSS 4.4%8.8CVE-2017-9799Apache storm vulnerabilityIt was found that under some situations and configurations of Apache Storm 1.x before 1.0.4 and 1.1.x before 1.1.1, it is theoretically possible for …EPSS 4.9%7.5CVE-2019-0202Apache storm information exposure vulnerabilityThe Apache Storm Logviewer daemon exposes HTTP-accessible endpoints to read/search log files on hosts running Storm. In Apache Storm versions 0.9.1-i…EPSS 2.0%7.5CVE-2014-0115Apache storm path traversal vulnerabilityDirectory traversal vulnerability in the log viewer in Apache Storm 0.9.0.1 allows remote attackers to read arbitrary files via a .. (dot dot) in the…EPSS 5.3%

Source: NIST National Vulnerability Database (record CVE-2026-35337), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.