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CVE-2026-114420— LDAP wildcard injection exposes GINA recipient accounts

Quick assessment

Affected
SEPPmail AG SEPPmail Secure Email Gateway (SEG)
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 Secure Email Gateway 15.1.1 之前版本存在漏洞：其 GINA Web 界面在处理未认证账户选择输入时，未能对 LDAP 元字符进行中和处理。远程未认证攻击者可借此枚举电子邮件地址。

CVSS 6.9 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-114420

Vulnerability Information
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Vulnerability Title
LDAP wildcard injection exposes GINA recipient accounts
Source: CVE Program / CVE List V5
Vulnerability Description
SEPPmail Secure Email Gateway before 15.1.1 does not neutralize LDAP metacharacters in an unauthenticated account-selection input in its GINA web interface. A remote unauthenticated attacker can enumerate email addresses.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
LDAP查询中使用的特殊元素转义处理不恰当(LDAP注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
SEPPmail AG SEPPmail Secure Email Gateway (SEG) 0 ~ 15.1.1 -

II. Public POCs for CVE-2026-114420

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III. Intelligence Information for CVE-2026-114420

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Other References for CVE-2026-114420 (1)

Same Patch Batch · SEPPmail AG · 2026-11-04 · 5 CVEs total

CVE-2026-114424 9.2 CRITICAL Code execution through double evaluation in address replacement rules
CVE-2026-114425 9.2 CRITICAL Forged LFT metadata permits arbitrary file read and deletion
CVE-2026-114426 8.7 HIGH Pre-authentication upload parsing permits resource exhaustion
CVE-2026-114421 8.3 HIGH Empty initial password permits GINA account takeover

IV. Related Vulnerabilities

Same product: SEPPmail Secure Email Gateway (SEG)
Same vendor: SEPPmail AG
Same weakness: CWE-90