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CVE-2026-11956: Sensitive Cookie Without Secure Attribute in TwiN gatus

0
Medium
VulnerabilityCVE-2026-11956cvecve-2026-11956
Published: Thu Jun 11 2026 (06/11/2026, 11:30:12 UTC)
Source: CVE Database V5
Vendor/Project: TwiN
Product: gatus

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".

CVSS v4.0

Score 6.3medium

Attack Vector
Network
Attack Complexity
High
Attack Requirements
None
Privileges Required
None
User Interaction
None
Vuln. Confidentiality
Low
Vuln. Integrity
None
Vuln. Availability
None
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X

Affected software

GitHub Actionsmore threats →ai
twin/gatus
pkg:github/twin/gatus
Affected versions
=5.36.0
CPE configurations
cpe:2.3:a:twin:gatus:*:*:*:*:*:*:*:*

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 06/11/2026, 13:07:40 UTC

Technical Analysis

The vulnerability in TwiN gatus 5.36.0 affects the setSessionCookie function within the security/oidc.go file, specifically the OIDC Session Cookie Handler component. It allows a sensitive cookie to be set without the Secure attribute, potentially exposing the cookie over non-encrypted connections. The attack vector is network-based, with high complexity and no required privileges or user interaction. The vendor has closed the related GitHub issue as "not planned," indicating no official fix is currently available.

Potential Impact

Sensitive cookies without the Secure attribute may be transmitted over unencrypted HTTP connections, increasing the risk of interception by attackers. However, the exploit complexity is high and no known exploits are reported in the wild. The vulnerability does not require privileges or user interaction, but the overall risk is mitigated by the difficulty of exploitation.

Mitigation Recommendations

No official fix or patch is currently planned by the vendor. Users should consider mitigating exposure by enforcing HTTPS usage for the application and reviewing session cookie handling configurations. Monitor vendor communications for any future updates or patches.

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Technical Details

Data Version
5.2
Assigner Short Name
VulDB
Date Reserved
2026-06-11T06:55:17.414Z
Cvss Version
4.0
State
PUBLISHED
Remediation Level
null

Threat ID: 6a2aaf9a57b0f63cf3a7534e

Added to database: 6/11/2026, 12:52:42 PM

Last enriched: 6/11/2026, 1:07:40 PM

Last updated: 6/11/2026, 1:16:31 PM

Views: 5

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