CVE-2026-4820Network attack vector

Session-token disclosure via insecure ltpatoken2 cookie

Published Apr 1, 2026 · Updated Apr 1, 2026

Cookie security misconfiguration in IBM Maximo Application Suite 8.10, 8.11, 9.0, and 9.1 allows attackers to read tokens in HTTP traffic. The ltpatoken2_<workspace_name> authorization cookie lacks the Secure attribute, so a browser sends it over HTTP when a crafted link targets the suite. Exploitation requires user interaction and a network position able to snoop the plaintext request, exposing the cookie value without directly altering data or availability.

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

Cookie security misconfiguration in IBM Maximo Application Suite 8.10, 8.11, 9.0, and 9.1 allows attackers to read tokens in HTTP traffic. The ltpatoken2_<workspace_name> authorization cookie lacks the Secure attribute, so a browser sends it over HTTP when a crafted link targets the suite. Exploitation requires user interaction and a network position able to snoop the plaintext request, exposing the cookie value without directly altering data or availability.

The record

CVE
CVE-2026-4820
Published
Apr 1, 2026
Updated
Apr 1, 2026
Vendor
OpenBMC Project
Product
IBM Maximo Application Suite
Classifications
CWE-319, CWE-614, CAPEC-102, T1539
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 1, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 1, 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=8.10
  2. Affected versionversion=8.11.0
  3. Affected versionversion=9.0
  4. Affected versionversion=9.1.0 <=10.6.5.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OpenBMC Project · IBM Maximo Application Suiteversion=8.10; version=8.11.0; version=9.0; version=9.1.0 <=10.6.5.0

Published CVSS scores

4.3IBM CorporationCVSS: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-319Cleartext Transmission of Sensitive Information
CWE-614Sensitive Cookie in HTTPS Session Without 'Secure' Attribute
CAPEC-102Session Sidejacking
T1539Steal Web Session Cookie

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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