Allegra exportReport Directory Traversal Information Disclosure Vulnerability

June 11th, 2026
ZDI-26-357 ZDI-CAN-28208

CVE ID

CVE-2026-11442

CVSS Score

6.5 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected Vendors

Allegra

Affected Products

Allegra

Vulnerability Details

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Allegra. Authentication is required to exploit this vulnerability.

The specific flaw exists within the exportReport method. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to disclose information in the context of the service account.

Additional Details

Allegra has issued an update to correct this vulnerability. More details can be found at:
https://alltena.com/en/resources/release-notes/release-notes-for-release-9-0-0/

Disclosure Timeline

  • 2026-04-07 - Vulnerability reported to vendor
  • 2026-06-11 - Coordinated public release of advisory
  • 2026-06-11 - Advisory Updated

Credit

Swagat Kumar Mishra

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