CVE-2026-9319
published 2026-06-01CVE-2026-9319: IBM WebSphere Application Server 9.0, and 8.5 is vulnerable to potential remote code execution due to deserialization of untrusted data via JAX-WS endpoints…
PriorityP260critical9CVSS 3.1
AVNACHPRNUINSCCHIHAH
EPSS
0.46%
37.2th percentile
IBM WebSphere Application Server 9.0, and 8.5 is vulnerable to potential remote code execution due to deserialization of untrusted data via JAX-WS endpoints with WS-Security.
Affected
4 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| ibm | websphere_application_server | — | — |
| ibm | websphere_application_server | >= 8.5.0.0 < 8.5.5.30 | 8.5.5.30 |
| ibm | websphere_application_server | 9.0 – 1.1.9.12 | — |
| ibm | websphere_application_server | >= 9.0.0.0 < 9.0.5.29 | 9.0.5.29 |
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
VulDB
IBM WebSphere Application Server up to 1.1.9.12/8.5 JAX-WS Endpoint deserialization
vuldb·2026-06-01·CVSS 9.0
CVE-2026-9319 [CRITICAL] IBM WebSphere Application Server up to 1.1.9.12/8.5 JAX-WS Endpoint deserialization
A vulnerability was found in IBM WebSphere Application Server up to 1.1.9.12/8.5. It has been classified as problematic. The impacted element is an unknown function of the component JAX-WS Endpoint. The manipulation leads to deserialization.
This vulnerability is referenced as CVE-2026-9319. Remote exploitation of the attack is possible. No exploit is available.
Upgrading the affected component is recommended.
GHSA
IBM WebSphere Application Server 9.0, and 8.5 is vulnerable to potential remote code execution due to deserialization of untrusted data via JAX-WS endpoints with WS-Security.
ghsa_unreviewed·2026-06-01
CVE-2026-9319 [CRITICAL] CWE-502 IBM WebSphere Application Server 9.0, and 8.5 is vulnerable to potential remote code execution due to deserialization of untrusted data via JAX-WS endpoints with WS-Security.
IBM WebSphere Application Server 9.0, and 8.5 is vulnerable to potential remote code execution due to deserialization of untrusted data via JAX-WS endpoints with WS-Security.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-06-01
Published