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Vulnerabilities

Vulnerability · CVE-2026-40127

OutSystems Lifetime is vulnerable to Authorization Bypass Through User-Controlled Key vulnerability in ApplicationID parameter.

Published May 25, 2026 · catalog updated Aug 11, 2026 · OutSystems Lifetime is vulnerable

Check if you run it

No confirmed exploitation is on record for CVE-2026-40127. EPSS is 0.60%. Act only if a listed version of OutSystems Lifetime is vulnerable is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (OutSystems Lifetime is vulnerable).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.60%
Remediation
Advisory link
Affected products
See sources for product scope

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

No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.

How to fix CVE-2026-40127

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-40127. EPSS is 0.60%. Act only if a listed version of OutSystems Lifetime is vulnerable is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-639: Authorization Bypass Through User-Controlled Key. EPSS 0.60%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. May 25, 2026 · NIST NVD

    Detected

    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

  2. Aug 11, 2026 · NIST NVD

    Updated

    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

Sources

  • CVE.orgVulnerability recordCVE-2026-40127

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-40127

    30-day exploitation probability 0.6%

    first.org
  • NIST NVDVulnerability recordCVE-2026-40127

    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

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.