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01 Record

CVE-2026-93905

IBM WebSphere Application Server Liberty is affected by a deserialization of untrusted data

HighPUBLISHEDCNA: ibm
CNA base score8.2 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L

02 Description

IBM WebSphere Application Server Liberty is affected by a deserialization of untrusted data

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.33% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 26.0% of scored records. A rank, not a probability.
NVD base score
8.2 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
NVD analysis status
Analyzed. NVD last modified this record on 2026-10-22.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-10-13 20:18Z15 DAYS AGO
Last updated
2026-10-14 18:35Z14 DAYS AGO
Reserved
2026-09-18
Assigning CNA
ibm
Record state
PUBLISHED
Severity
High (CVSS 8.2)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
Weaknesses
  • CWE-502Deserialization of Untrusted DataBase
Data version
5.2
Document digest
90d10114d1349819c5c722c1061e1072bde0b89ec1d6a759d48393a6fd1eb60a

05 Affected products

VendorProductVersionsPlatforms
IBMWebSphere Application Server - Liberty17.0.0.3 to 26.0.0.10—

06 References

07 Remediation

IBM strongly recommends addressing the vulnerability now by applying a currently available interim fix or fix pack that contains the fix for APAR DT502467. To determine if a feature is enabled for IBM WebSphere Application Server Liberty, refer to How to determine if Liberty is using a specific feature https://www.ibm.com/support/pages/node/6553910 . For IBM WebSphere Application Server Liberty 17.0.0.3 - 26.0.0.10 using the batchManagement-1.0 feature: · Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves DT502467 https://www.ibm.com/support/pages/node/7292230 --OR-- · Apply Liberty Fix Pack 26.0.0.11 or later (targeted availability 4Q2026). Additional interim fixes may be available and linked off the interim fix download page.