Vulnerability in Twin Gatus
CVE-2026-11956
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".
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.002 (7.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 7.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Twin Gatus — versions 5.36.0
Weakness classification (CWE)
References
- github.com/TwiN/gatus/ (product)
- github.com/TwiN/gatus/issues/1689 (issue-tracking)
- vuldb.com/cve/CVE-2026-11956 (third-party-advisory)
- vuldb.com/submit/836328 (third-party-advisory)
- vuldb.com/vuln/370343 (technical-description, vdb-entry)
- vuldb.com/vuln/370343/cti (signature, permissions-required)
Frequently asked questions
- What is CVE-2026-11956?
- CVE-2026-11956 is a low-severity vulnerability in Twin Gatus, classified under Sensitive Cookie in HTTPS Session Without 'Secure' Attribute. CVSS score: 3.7/10. Published 2026-06-11.
- How severe is CVE-2026-11956?
- Low severity. CVSS v3 base score is 3.7 out of 10.