What is CVE-2026-93905?

CVE-2026-93905 is a high-severity vulnerability in IBM Websphere Application Server - Liberty, classified under Deserialization of Untrusted Data. CVSS score: 8.2/10. Published 2026-10-13.

How severe is CVE-2026-93905?

High severity. CVSS v3 base score is 8.2 out of 10.

Deserialization in IBM Websphere Application Server - Liberty

CVE-2026-93905

IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.10 could allow an unauthenticated remote attacker to corrupt the persisted status of batch job instances.

Vulnerability class: Insecure Deserialization

Published 2026-10-13 · last modified 2026-10-14.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

IBM Websphere Application Server - Liberty

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

www.ibm.com/support/pages/node/7292232 (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-93905?: CVE-2026-93905 is a high-severity vulnerability in IBM Websphere Application Server - Liberty, classified under Deserialization of Untrusted Data. CVSS score: 8.2/10. Published 2026-10-13.
How severe is CVE-2026-93905?: High severity. CVSS v3 base score is 8.2 out of 10.