CVE-2026-116894: REDAXO session expiration insufficient on password change

CVE-2026-116894 · Severity: medium · CVSS 4.2 · Published 2026-10-27

REDAXO is a content management system used to build and manage websites. When a user changes their password, the system fails to invalidate the current session and stay-logged-in cookie, allowing an attacker who previously obtained these credentials to retain backend access for up to three months. This means even if a user changes their password after suspecting compromise, the attacker can continue to access their account.

Technologies: REDAXO. Vendors: REDAXO.

Quick answers

Is CVE-2026-116894 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-116894 being exploited in the wild.
How severe is CVE-2026-116894?
Medium severity, with a CVSS score of 4.2, published 27 October 2026.
Which products and versions are affected?
REDAXO before 5.21.5.
Is there a fix for CVE-2026-116894?
Yes: fixed in 5.21.5. Until then: Log out after changing your password. Logging out removes the current session including its stay-logged-in key, preventing an attacker from using the invalidated credentials.</anigation> <parameter name="attack_vector">["network"] Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-116894 attacked?
It is in a software library.
Am I affected by CVE-2026-116894?
Check whether you run REDAXO at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: 5.21.5

Log out after changing your password. Logging out removes the current session including its stay-logged-in key, preventing an attacker from using the invalidated credentials.</anigation> <parameter name="attack_vector">["network"]

Technical details

The vulnerability is an insufficient session expiration flaw in the password change mechanism. When a password is changed, REDAXO invalidates other sessions but fails to regenerate the current session ID or renew the stay-logged-in key in the current session. An attacker with knowledge of a user's session ID or stay-logged-in cookie can maintain backend access past the password change due to the stay-logged-in cookie's 3-month validity window. The fix regenerates the session ID and renews the stay-logged-in key upon password change.

Affected products

  • REDAXO REDAXO before 5.21.5

Timeline

  • 2026-10-06: disclosed: GHSA-mjjv-vffq-g5h6 published on GitHub Security Advisory
  • 2026-10-27: patched: REDAXO 5.21.5 released with fix
  • 2026-10-27: advisory: CVE-2026-116894 published on NVD

References

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