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CVE-2026-8620

34
FAUCET Score

IBM Web Server Plug-ins for WebSphere Application Server and WebSphere Liberty 8.5, 9.0 IBM WebSphere Application Server and WebSphere Application Server Liberty are vulnerable to HTTP request smuggling in the Web Server Plug-ins through a specially crafted request.

First published: May 26, 2026Last modified: May 26, 2026

Impacted Technologies

VendorProductVersion(s)CPE
>= 8.5.0.0, < 8.5.5.30CPE matchmatch criteria
cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:-:*:*:*
>= 8.5.0.0, < 8.5.5.30CPE matchmatch criteria
cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:liberty:*:*:*
>= 9.0.0.0, < 9.0.5.28CPE matchmatch criteria
cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:-:*:*:*
>= 9.0.0.0, < 9.0.5.28CPE matchmatch criteria
cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:liberty:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
4.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.28%
Probability of exploitation in next 30 days
EPSS Percentile
20.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0028 is in the 3rd percentile among its peer group of 8,920 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

ibm.com / support/pages/node/7274072
PatchVendor Advisory