What is CVE-2026-35337?

CVE-2026-35337 is a high-severity vulnerability in Apache Storm, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2026-04-13.

How severe is CVE-2026-35337?

High severity. CVSS v3 base score is 8.8 out of 10.

Deserialization in Apache Storm

CVE-2026-35337

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 usin…

Vulnerability class: Insecure Deserialization

EPSS: 0.010 (59.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Apache Storm
Apache Software Foundation Storm Client — versions 0

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

security@apache.org (vendor-advisory, Release Notes, Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2026-35337?: CVE-2026-35337 is a high-severity vulnerability in Apache Storm, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2026-04-13.
How severe is CVE-2026-35337?: High severity. CVSS v3 base score is 8.8 out of 10.