CVE-2026-10841: IBM WebSphere Application Server · HTTP Request/Response Smuggling
Affects IBM WebSphere Application ServerSource CVE Database V5
Not known to be exploited · CVSS 4.8 Medium.
Data as of 26 Oct 2026, 13:47 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 14% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 18 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| IBMWebSphere Application Server | Affected
| Fixed in– |
| IBMWebSphere Application Server - Liberty | Affected
| Fixed in– |
CPE configurations (6)
cpe:2.3:a:ibm:websphere_application_server:9.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:websphere_application_server:9.0.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:websphere_application_server:8.5:*:*:*:*:*:*:*cpe:2.3:a:ibm:websphere_application_server:8.5.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:websphere_application_server_liberty:17.0.0.3:*:*:*:*:*:*:*cpe:2.3:a:ibm:websphere_application_server_liberty:26.0.0.8:*:*:*:*:*:*:*
AI-suggested
Organizations should monitor IBM advisories for updates and apply any official patches once available.
Description
CVE-2026-10841 is a medium severity vulnerability in IBM WebSphere Application Server versions 8.5, 9.0, Liberty 17.0.0.3 through 26.0.0.5, and version 10.1. It involves inconsistent interpretation of HTTP requests, known as HTTP request/response smuggling (CWE-444). This flaw could allow an attacker to manipulate HTTP request processing, potentially impacting confidentiality and integrity. The vulnerability has a CVSS 3.1 base score of 4.8, indicating a moderate risk. No known exploits are reported in the wild, and no patch or remediation details are provided in the available data.