CVE-2026-11806

IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.6 is affected by an arbitrary file read vulnerability with the restConnector-2.0 feature enabled.

CVSS v3 7.2 HIGH

7.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.ibm.com/support/pages/node/7277536	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:liberty:*:*:*

History

02 Jul 2026, 17:58

Type	Values Removed	Values Added
References	~~() https://www.ibm.com/support/pages/node/7277536 -~~	() https://www.ibm.com/support/pages/node/7277536 - Vendor Advisory
First Time		Ibm Ibm websphere Application Server
CPE		cpe:2.3:a:ibm:websphere_application_server:::::liberty:::*

30 Jun 2026, 20:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-30 20:17

Updated : 2026-07-02 17:58

NVD link : CVE-2026-11806

Mitre link : CVE-2026-11806

CVE.ORG link : CVE-2026-11806

JSON object : View

Products Affected

ibm

websphere_application_server

CWE

CWE-444

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

{"id": "CVE-2026-11806", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-11806", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-07-01T00:00:00+00:00"}}], "cvssMetricV31": [{"type": "Secondary", "source": "psirt@us.ibm.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.2}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "affected": [{"source": "psirt@us.ibm.com", "affectedData": [{"cpes": ["cpe:2.3:a:ibm:websphere_application_server___liberty:17.0.0.3:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:websphere_application_server___liberty:26.0.0.6:*:*:*:*:*:*:*"], "vendor": "IBM", "product": "WebSphere Application Server - Liberty", "versions": [{"status": "affected", "version": "17.0.0.3", "versionType": "semver", "lessThanOrEqual": "26.0.0.6"}]}]}], "published": "2026-06-30T20:17:28.157", "references": [{"url": "https://www.ibm.com/support/pages/node/7277536", "tags": ["Vendor Advisory"], "source": "psirt@us.ibm.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "psirt@us.ibm.com", "description": [{"lang": "en", "value": "CWE-444"}]}], "descriptions": [{"lang": "en", "value": "IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.6 is affected by an arbitrary file read vulnerability with the restConnector-2.0 feature enabled."}], "lastModified": "2026-07-02T17:58:55.950", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:liberty:*:*:*", "vulnerable": true, "matchCriteriaId": "6CA8B7A4-4481-42AB-B185-4CD8AEDA4BCA", "versionEndExcluding": "26.0.0.7", "versionStartIncluding": "17.0.0.3"}], "operator": "OR"}]}], "sourceIdentifier": "psirt@us.ibm.com"}