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CVE-2026-40127

Authorization Bypass Through User-Controlled Key in OutSystems Lifetime

MEDIUM
5.3
CVSS Score
Published: May 25, 2026 at 10:18 AM UTC
Updated: August 11, 2026 at 07:17 AM UTC
1 product affected across 1 vendorLifetime Management Console

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

OutSystems Lifetime is vulnerable to Authorization Bypass Through User-Controlled Key vulnerability in ApplicationID parameter. Any authenticated user, can read the Change Log containing actions performed by other users as well as application name of any application. This issue was fixed in OutSystems Lifetime version 11.28.2.3955

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Lifetime Management Console· Outsystems
60%
v < 11.28.2.3955
Affected range stops below 11.28.2.3955, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

Third Party Advisory
Source: cverecord
https://cert.pl/en/posts/2026/05/CVE-2026-40126/
Product
Source: cverecord
https://www.outsystems.com/downloads/ScreenDetails?ReleaseId=22953&MajorVersion=11&ComponentName=LifeTime
Vendor Advisory
Source: cverecord
https://success.outsystems.com/support/security/vulnerabilities/vulnerability_rpm_6441/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMCERT-PL
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-639

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