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CVE-2026-15064 IBM WebSphere Application Server

Affected softwareIBM WebSphere Application Server
Severity8.7 High CVSS 3.1
WeaknessCWE-444
Published28 Jul 2026
Updated23 Sep 2026

Description

IBM WebSphere Application Server and IBM WebSphere Application Server - Liberty is vulnerable to HTTP Response Smuggling due to improper handling of non-standard HTTP version tokens.

Exploitation status

No public exploit

No exploit has been reported in the sources we check.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment exploitation: none
  • Indexed PoC none indexed
  • EPSS 0.34% chance in 30 days

Waratek protection

No exploit published

Within Waratek scope. In the sources we check, nobody has published exploit code for this CVE or reported it being exploited.

VRT has not found a public code change for this CVE yet.

  • Protection none
  • Action not pursued
  • Review automated Upstream data
  • Record active
Decided by Nothing to build a rule from yet: no published exploit, no CISA record of exploitation and no source-level change to read
Finding This CVE affects a known product, but nothing published names a fix and nothing published shows an exploit. That is a statement about the evidence, not about the defect — it does not mean the vulnerability is unimportant or unreachable, only that neither of the two things VRT can act on exists.

Affected software and releases

Products and versions

1 product, 3 version entries
SourceVendorProductSchemeAffected versions
nvd ibm websphere application server generic ≥ 8.5.0.0 and < 8.5.5.31 · ≥ 9.0.0.0 and < 9.0.5.29 · ≥ 17.0.0.3 and < 26.0.0.8

References

URLTags
https://www.ibm.com/support/pages/node/7281625 Vendor Advisory

Timeline

Published2026-07-28By the CVE Program.
NVD record modified2026-09-23NVD's own last-modified date for this record.