CVE-2026-15064
Medium
Elevated severity or exploit probability.
CVSS base
8.7
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
EPSS — probability of exploitation (30 days)
0.2%
12.8th percentile
CISA KEV
Not listed
Weakness / dates
CWE-444
Published 2026-07-28 · modified 2026-08-05
CVSS breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
| Attack Vector | N | Network |
| Attack Complexity | H | High |
| Privileges Required | N | None |
| User Interaction | N | None |
| Scope | C | Changed |
| Confidentiality | H | High |
| Integrity | H | High |
| Availability | N | None |
Timeline
- 2026-07-28 — Published (NVD)
- 2026-08-05 — Last modified (NVD)
Description
IBM WebSphere Application Server 9.0, and 8.5 and IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.7 is vulnerable to HTTP Response Smuggling due to improper handling of non-standard HTTP version tokens.