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TI-2026-08427 Aliases CVE-2026-9592GHSA-2rg6-hxw2-6rh8

Sensitive Information Disclosure in HTTP header

Priority LOW 34CWE-598Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

SEPPmail Secure Email Gateway & SEPPmail Cloud before version 15.0.4.2 allows an attacker to replay & hijack a user session in the GINA web portal, as the session token is disclosed inside the URL and a HTTP header.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00241 15th percentileScored 2026-11-07
Fix Fixed SEPPmail Secure Email Gateway & SEPPmail Cloud (SEPPmail): 15.0.4.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SEPPmailSEPPmail Secure Email Gateway & SEPPmail Cloud—15.0.4.2Patch availableCNA
  • SEPPmail Secure Email Gateway & SEPPmail Cloud VendorSEPPmail Affected — Fixed in 15.0.4.2 Patch available CNA

Remediation

  • Fix · CNA SEPPmail Secure Email Gateway & SEPPmail Cloud (SEPPmail) Fixed in 15.0.4.2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-9592
  2. 2026-10-03 Alias added: GHSA-2rg6-hxw2-6rh8

References

Other 1

  • TI-2026-02349 SEPPmail User Web Interface Arbitrary File Write to RCE CVSS 4.0CRITICAL 10.0
  • TI-2026-32138 Local File Inclusion (LFI) and Arbitrary File Deletion CVSS 4.0HIGH 8.8
  • TI-2021-11768 SEPPMail's web frontend, user input is not embedded correctly in the web page and… CVSS 3.1MEDIUM 6.1
  • TI-2021-11767 The SEPPmail solution is vulnerable to a Cross-Site Scripting vulnerability (XSS)… CVSS 3.1MEDIUM 6.1
  • TI-2026-06922 Exposure of Sensitive Information to an Unauthorized Actor CVSS 4.0MEDIUM 6.9
  • TI-2026-32139 Unauthenticated remote code execution in SEPPmail Secure Email Gateway CVSS 4.0CRITICAL 9.3
See all 41 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences