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CVE-2026-11956— TwiN gatus OIDC Session Cookie oidc.go setSessionCookie missing secure attribute

CVSS 3.7 · Low EPSS 0.19% · P9

Possible ATT&CK Techniques 1AI

T1530 · Data from Cloud Storage

Affected Version Matrix 1

VendorProductVersion RangeStatus
TwiNgatus5.36.0affected
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I. Basic Information for CVE-2026-11956

Vulnerability Information
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Vulnerability Title
TwiN gatus OIDC Session Cookie oidc.go setSessionCookie missing secure attribute
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability was determined in TwiN gatus 5.36.0. Impacted is the function setSessionCookie of the file security/oidc.go of the component OIDC Session Cookie Handler. Executing a manipulation can lead to sensitive cookie without secure attribute. The attack can be launched remotely. This attack is characterized by high complexity. The exploitability is considered difficult. The reported GitHub issue was closed with the label "not planned".
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
HTTPS会话中未设置’Secure’属性的敏感Cookie
Source: NVD (National Vulnerability Database)
Vulnerability Title
gatus 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
gatus是TwiN个人开发者的一个服务健康监控与告警工具。 gatus 5.36.0版本存在安全漏洞，该漏洞源于OIDC会话Cookie处理器的setSessionCookie函数中，执行操作可能导致敏感Cookie缺少安全属性，攻击者可远程发起攻击。
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

VendorProductAffected VersionsCPESubscribe
TwiNgatus 5.36.0 cpe:2.3:a:twin:gatus:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-11956

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III. Intelligence Information for CVE-2026-11956

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Vendor Advisories for CVE-2026-11956 (1)

IV. Related Vulnerabilities

Same weakness: CWE-614

V. Comments for CVE-2026-11956

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