CVE-2026-15325: IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by multiple vulnerabilities
Modified
Published 28-07-2026Last modified 06-08-2026
Vulnerability summary
CVE-2026-15325 is a high (CVSS 8.7) HTTP Request/Response Smuggling vulnerability in ibm websphere_application_server. EPSS estimates a 0.34% chance of exploitation in the next 30 days, higher than 26.3% of scored vulnerabilities.
CVSS score
8.7/10
010
High · v3.1 (CVE.org)EPSS score
0.34%
0%100%
Low · +0.13 pp in 30 daysKEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded
Timeline
- 28-07-2026PublishedVulnerability first disclosed.
- 06-08-2026Last modifiedVulnerability information updated.
Description
IBM WebSphere Application Server and IBM WebSphere Application Server - Liberty is vulnerable to HTTP request smuggling due to improper handling of TRACE requests.
CVSS metrics
2 scores · 2 sources · 1 versionHigh 8.7Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:NSourcesAll 2 agree
- NVDNIST8.7HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
EPSS trend
Probability
0.34%
Chance of exploitation in the next 30 days
Percentile
26%
Versus all other CVEs
30-day change
Increase +0.13 pp
From 0.21% on 22-09-2026
22-09-202622-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ibm2 products
- websphere_application_server9.0 | 8.5 | ≥ 8.5.0.0, < 8.5.5.31 | ≥ 9.0.0.0, < 9.0.5.29 | ≥ 17.0.0.3, < 26.0.0.8
- websphere application server - liberty≥ 17.0.0.3, ≤ 26.0.0.7
1 vendor · 2 products