# \[RESOLVED\] Incident: Cloud DUO authentication issue with browser extension in Passbolt 5.7

**URL:** <https://community.passbolt.com/t/resolved-incident-cloud-duo-authentication-issue-with-browser-extension-in-passbolt-5-7/14006>\
**Category:** Announcements\
**Created:** [January 5, 2026, 8:54am UTC](https://community.passbolt.com/t/resolved-incident-cloud-duo-authentication-issue-with-browser-extension-in-passbolt-5-7/14006 "2026-01-05T08:54:25Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Gerold](https://yyz1.discourse-cdn.com/flex031/user_avatar/community.passbolt.com/gerold/32/4485_2.png) [@Gerold](https://community.passbolt.com/u/Gerold)\
**Post date:** [January 5, 2026, 8:54am UTC](https://community.passbolt.com/t/resolved-incident-cloud-duo-authentication-issue-with-browser-extension-in-passbolt-5-7/14006/1 "2026-01-05T08:54:25Z")

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**Summary:** Following the release of Passbolt Cloud 5.7, users authenticating with DUO as a second factor may be unable to complete the login flow when using the browser extension.

**Impact:** Affected users: Passbolt Cloud users who rely on DUO for second-factor authentication via the browser extension.

**Symptoms:** Authentication cannot reach DUO services

**Not affected:** Self-hosted Passbolt instances are not impacted.

**Root cause:** This issue is caused by stricter Content Security Policy (CSP) rules introduced in Passbolt 5.7, which unintentionally block parts of the DUO authentication flow when used with the browser extension.

**Workarounds** :

- Users to use Firefox which is not impacted by the issue;
- Users to connect with another MFA, if configured prior to the incident;
- Administrators to disable MFA for a user requiring immediate access;
- Administrators to disable DUO MFA for the whole organizations;

**Resolution status:** The team has identified the issue and is actively working on a fix.  
An update will be communicated as soon as a patch or workaround is available.

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**Author:** ![cedric](https://yyz1.discourse-cdn.com/flex031/user_avatar/community.passbolt.com/cedric/32/3868_2.png) [@cedric](https://community.passbolt.com/u/cedric)\
**Post date:** [January 5, 2026, 10:22am UTC](https://community.passbolt.com/t/resolved-incident-cloud-duo-authentication-issue-with-browser-extension-in-passbolt-5-7/14006/2 "2026-01-05T10:22:29Z")

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The incident is now resolved, an incident page will be published soon. Thank you for your patience.