CVE-2026-15656Network attack vector

Cookie disclosure via missing Secure attribute

Published Aug 5, 2026 · Updated Aug 5, 2026

Sensitive-cookie exposure in IBM Maximo Application Suite 9.0, 9.1, and 9.2 allows remote attackers to obtain cookie values over HTTP. The mas-redirect-uri cookie is issued without the Secure attribute, so a browser sends its value with an attacker-supplied HTTP request. Exploitation requires user interaction and an attacker able to snoop the resulting plaintext traffic; no integrity or availability impact is reported.

CVSS severity4.3
Medium
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Sensitive-cookie exposure in IBM Maximo Application Suite 9.0, 9.1, and 9.2 allows remote attackers to obtain cookie values over HTTP. The mas-redirect-uri cookie is issued without the Secure attribute, so a browser sends its value with an attacker-supplied HTTP request. Exploitation requires user interaction and an attacker able to snoop the resulting plaintext traffic; no integrity or availability impact is reported.

The record

CVE
CVE-2026-15656
Published
Aug 5, 2026
Updated
Aug 5, 2026
Vendor
IBM
Product
Maximo Application Suite
Classifications
CWE-614, T1539
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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=9.0
  2. Affected versionversion=9.1
  3. Affected versionversion=9.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · Maximo Application Suiteversion=9.0; version=9.1; version=9.2

Published CVSS scores

4.3IBMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-614Sensitive Cookie in HTTPS Session Without 'Secure' Attribute
T1539Steal Web Session Cookie

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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