CVE-2026-8858 (GCVE-0-2026-8858)

Vulnerability from cvelistv5 – Published: 2026-06-22 14:16 – Updated: 2026-06-24 16:52
VLAI
Title
WebSphere Application Server is Affected By Denial of Service, HTTP Request Smuggling, and Remote Code Execution Vulnerabilities in IBM WebSphere Application Server Liberty [, , , , ]
Summary
IBM WebSphere Application Server and IBM WebSphere Application Server Liberty are vulnerable to remote code execution and denial of service in the WebSphere Web Server Plug-in component. This vulnerability can be exploited when an attacker impersonates the application server and sends crafted responses to the plug-in.
Severity
7.5 (High)
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
ibm
References
URL Tags
https://www.ibm.com/support/pages/node/7277344 vendor-advisorypatch
Impacted products
Vendor Product Version
IBM i Affected: 7.6.0 , ≤ 1.8.4 (semver)
Affected: 7.5.0 (semver)
Affected: 7.4.0 (semver)
Affected: 7.3.0 (semver)
    cpe:2.3:a:ibm:i:7.6:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:i:7.6.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:i:7.5:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:i:7.5.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:i:7.4:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:i:7.4.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:i:7.3:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:i:7.3.0:*:*:*:*:*:*:*
 Create a notification for this product.
Show details on NVD website
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nofollow\\\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ10121\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e7.4\u003c/td\u003e\u003ctd\u003eSJ10120\u003c/td\u003e\u003ctd\u003e\u003ca href=\\\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ10120\\\" rel=\\\"noopener noreferrer nofollow\\\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ10120\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e7.3\u003c/td\u003e\u003ctd\u003eSJ10119\u003c/td\u003e\u003ctd\u003e\u003ca href=\\\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ10119\\\" rel=\\\"noopener noreferrer nofollow\\\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ10119\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/table\u003e\u003c/div\u003e\u003cp\u003eIBM recommends users running unsupported versions of affected products upgrade to a supported and fixed version of affected 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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.