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CVE-2026-9592

Sensitive Information Disclosure in HTTP header

HIGH
7.5
CVSS Score
Published: July 17, 2026 at 01:51 PM UTC
Updated: October 24, 2026 at 08:10 PM UTC
1 product affected across 1 vendorSEPPmail Secure Email Gateway & SEPPmail Cloud

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Severity
HIGH7.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

SEPPmail Secure Email Gateway & SEPPmail Cloud· Seppmail
77%
All versions
Vendor states this is fixed in 15.0.4.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: cverecord
https://downloads.seppmail.com/extrelnotes/150/ERN15.0.html#remove-login-redirect-to-prevent-disclosure-of-session-token-information

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHNCSC.ch
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-598

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