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CVE-2026-9592— Sensitive Information Disclosure in HTTP header

Quick assessment

Affected
SEPPmail SEPPmail Secure Email Gateway & SEPPmail Cloud
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

SEPPmail SEPPmail Secure Email Gateway & SEPPmail Cloud是瑞士SEPPmail公司的一款电子邮件安全网关系统。 SEPPmail Secure Email Gateway & SEPPmail Cloud 15.0.4.2之前版本存在信息泄露漏洞，该漏洞源于会话令牌在URL和HTTP标头中泄露，可能导致攻击者重放和劫持用户会话。

AI Predicted 5.4 Difficulty: Easy EPSS 0.24% · P15

Affected Version Matrix 1

VendorProduct Version RangeStatus
SEPPmail SEPPmail Secure Email Gateway & SEPPmail Cloud 15.0.4.2 unaffected
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I. Basic Information for CVE-2026-9592

Vulnerability Information
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Vulnerability Title
Sensitive Information Disclosure in HTTP header
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:U
Source: CVE Program / CVE List V5
Vulnerability Type
通过GET请求中的查询字符串导致的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
SEPPmail Secure Email Gateway & SEPPmail Cloud 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SEPPmail SEPPmail Secure Email Gateway & SEPPmail Cloud是瑞士SEPPmail公司的一款电子邮件安全网关系统。 SEPPmail Secure Email Gateway & SEPPmail Cloud 15.0.4.2之前版本存在信息泄露漏洞，该漏洞源于会话令牌在URL和HTTP标头中泄露，可能导致攻击者重放和劫持用户会话。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
SEPPmail SEPPmail Secure Email Gateway & SEPPmail Cloud - -

II. Public POCs for CVE-2026-9592

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III. Intelligence Information for CVE-2026-9592

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IV. Related Vulnerabilities

Same vendor: SEPPmail
Same weakness: CWE-598