TwiN gatus 5.36.0 OIDC Session Cookie security/oidc.go setSessionCookie missing secure attribute
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 3.6 | $0-$5k | 1.90- |
Summary
A vulnerability, which was classified as problematic, has been found in TwiN gatus 5.36.0. The affected element is the function setSessionCookie of the file security/oidc.go of the component OIDC Session Cookie Handler. The manipulation leads to missing secure attribute.
This vulnerability is listed as CVE-2026-11956. The attack may be initiated remotely. There is no available exploit.
The reported GitHub issue was closed with the label "not planned".
Details
A vulnerability, which was classified as problematic, has been found in TwiN gatus 5.36.0. This issue affects the function setSessionCookie of the file security/oidc.go of the component OIDC Session Cookie Handler. The manipulation with an unknown input leads to a missing secure attribute vulnerability. Using CWE to declare the problem leads to CWE-614. The Secure attribute for sensitive cookies in HTTPS sessions is not set, which could cause the user agent to send those cookies in plaintext over an HTTP session. Impacted is confidentiality.
It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-11956. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1539 according to MITRE ATT&CK.
The reported GitHub issue was closed with the label "not planned".
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-36236). Be aware that VulDB is the high quality source for vulnerability data.
Product
Vendor
Name
Version
Website
- Product: https://github.com/TwiN/gatus/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 3.7VulDB Meta Temp Score: 3.6
VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔒
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Missing secure attributeCWE: CWE-614 / CWE-1004 / CWE-732
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
06/11/2026 Advisory disclosed06/11/2026 VulDB entry created
06/11/2026 VulDB entry last update
Sources
Product: github.comAdvisory: 1689
Status: Not defined
CVE: CVE-2026-11956 (🔒)
GCVE (CVE): GCVE-0-2026-11956
GCVE (VulDB): GCVE-100-370343
EUVD: 🔒
Entry
Created: 06/11/2026 09:01Updated: 06/11/2026 19:08
Changes: 06/11/2026 09:01 (55), 06/11/2026 19:08 (1)
Complete: 🔍
Submitter: geochen
Cache ID: 216::103
Submit
Accepted
- Submit #836328: TwiN gatus 5.36.0 Sensitive Cookie Without Secure Attribute (by geochen)
Be aware that VulDB is the high quality source for vulnerability data.
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