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DavMail 6.6.0 patches a regex flaw and advances its Microsoft Graph backend

ID: 00364e6d-69b0-5fd2-8efe-ed416d465fba

STIX ID: report--00364e6d-69b0-5fd2-8efe-ed416d465fba

Feed Name: Help Net Security

Threat Score
15/100

Date Published: 2026-04-14

Date Updated: 2026-04-28

Author: Anamarija Pogorelec

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DavMail 6.6.0 was released to address a GitHub code-scanning finding by replacing a regex with substring calls (mitigating a potential ReDoS), to restore native OAuth redirect handling after a Microsoft OIDC change, and to apply multiple protocol fixes across IMAP, SMTP, CalDAV, and CardDAV; the release also includes packaging and platform updates and continued work on a Microsoft Graph backend.

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