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

Severity: low (CVSS 3.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-06-11 · updated 2026-10-26
Weakness: CWE-614

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".

Affected products

TwiN gatus: 5.36.0

References

https://github.com/TwiN/gatus/
https://github.com/TwiN/gatus/issues/1689
https://vuldb.com/cve/CVE-2026-11956
https://vuldb.com/submit/836328
https://vuldb.com/vuln/370343
https://vuldb.com/vuln/370343/cti
https://github.com/TwiN/gatus/issues/1689
https://vuldb.com/submit/836328

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