CVE-2026-1561Network attack vector

Authenticated SSRF through SAML web feature

Published Mar 25, 2026 · Updated Mar 25, 2026

SSRF in IBM WebSphere Application Server Liberty 17.0.0.3 through 26.0.0.3 allows remote authenticated users to send unauthorized requests. IBM identifies samlWeb-2.0 as affected but has not disclosed the request field, handler, or failed validation that permits the outbound request. Valid credentials and an enabled samlWeb-2.0 feature are required; exploitation enables network enumeration and requests from the server's network position.

CVSS severity5.4
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in IBM WebSphere Application Server Liberty 17.0.0.3 through 26.0.0.3 allows remote authenticated users to send unauthorized requests. IBM identifies samlWeb-2.0 as affected but has not disclosed the request field, handler, or failed validation that permits the outbound request. Valid credentials and an enabled samlWeb-2.0 feature are required; exploitation enables network enumeration and requests from the server's network position.

The record

CVE
CVE-2026-1561
Published
Mar 25, 2026
Updated
Mar 25, 2026
Vendor
OpenBMC Project
Product
IBM WebSphere Application Server Liberty
Classifications
CWE-918, T1046
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=17.0.0.3 <=26.0.0.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OpenBMC Project · IBM WebSphere Application Server Libertyversion=17.0.0.3 <=26.0.0.3

Published CVSS scores

5.4IBMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1046Network Service Discovery

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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