CVE-2026-40127Network attack vector

Authenticated change-log disclosure via unchecked ApplicationID

Published May 25, 2026 · Updated May 25, 2026

Authorization bypass in OutSystems LifeTime before 11.28.2.3955 allows remote authenticated users to read other applications' change logs. The change-log request trusts the user-controlled ApplicationID parameter without verifying authorization for the referenced application. Any authenticated account can disclose actions performed by other users and application names, with no reported write or service-interruption impact.

CVSS severity5.3
Medium
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in OutSystems LifeTime before 11.28.2.3955 allows remote authenticated users to read other applications' change logs. The change-log request trusts the user-controlled ApplicationID parameter without verifying authorization for the referenced application. Any authenticated account can disclose actions performed by other users and application names, with no reported write or service-interruption impact.

The record

CVE
CVE-2026-40127
Published
May 25, 2026
Updated
May 25, 2026
Vendor
OutSystems
Product
LifeTime
Classifications
CWE-639, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 25, 2026CVE publishedPublication date reported by the CVE source.
  2. May 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=0 <11.28.2.3955

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OutSystems · LifeTimeversion=0 <11.28.2.3955

Published CVSS scores

5.3CERT.PLCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA: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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1213Data from Information Repositories

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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