Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2026-9336
IBM WebSphere Application Server prior to 9.0.5.29 and 8.5.5.31 are affected by multiple vulnerabilities
AV AC PR UI S C I A CVSS EPSS %ile KEV
N L N N U N N H 7.5 .0077 54.1 —
AFFECTED
Product Versions Fixed
WebSphere Application Server 9.0 – —
TIMELINE
May 22 Reserved by ibm
Sep 10 Published (CNA: ibm)
Sep 16 RESCORED — CVE-2026-9336 (IBM WebSphere Application Server). CVSS 6.5 → 7.5 (NVD).
Description
IBM WebSphere Application Server 9.0, and 8.5 is vulnerable to a denial of service, caused by sending a specially-crafted HTTP request to an administrative endpoint. A remote attacker could exploit this vulnerability to cause the server to exhaust filesystem space.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| May 22, 2026 | Reserved | Reserved by ibm |
| September 10, 2026 | Published | Published (CNA: ibm) |
| September 16, 2026 | RESCORED | RESCORED — CVE-2026-9336 (IBM WebSphere Application Server). CVSS 6.5 → 7.5 (NVD). |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| IBM | WebSphere Application Server | — | 9.0 | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-9336 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.