SigNoz before 0.134.0 contains an open redirect vulnerability in the SSO authentication flow that allows unauthenticated attackers to steal session tokens from any user on instances configured with Google OAuth, SAML, or OIDC. Attackers can call the unauthenticated sessions context endpoint with a ref parameter pointing to an attacker-controlled host, deliver the resulting crafted login URL to a victim, and receive the victim's access and refresh tokens when they complete SSO authentication.
Metrics
Affected Vendors & Products
| Vendors | Products |
|---|---|
| Signoz |
|
No data.
No data.
References
History
Mon, 27 Jul 2026 17:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | SigNoz through 0.133.0 contains an open redirect vulnerability in the SSO authentication flow that allows unauthenticated attackers to steal session tokens from any user on instances configured with Google OAuth, SAML, or OIDC. Attackers can call the unauthenticated sessions context endpoint with a ref parameter pointing to an attacker-controlled host, deliver the resulting crafted login URL to a victim, and receive the victim's access and refresh tokens when they complete SSO authentication. | SigNoz before 0.134.0 contains an open redirect vulnerability in the SSO authentication flow that allows unauthenticated attackers to steal session tokens from any user on instances configured with Google OAuth, SAML, or OIDC. Attackers can call the unauthenticated sessions context endpoint with a ref parameter pointing to an attacker-controlled host, deliver the resulting crafted login URL to a victim, and receive the victim's access and refresh tokens when they complete SSO authentication. |
| Title | SigNoz 0.133.0 SSO OAuth State Manipulation Session Token Theft | SigNoz < 0.134.0 SSO OAuth State Manipulation Session Token Theft |
| References |
|
Tue, 21 Jul 2026 13:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
Tue, 21 Jul 2026 02:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Fri, 17 Jul 2026 16:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Signoz
Signoz signoz |
|
| Vendors & Products |
Signoz
Signoz signoz |
Fri, 17 Jul 2026 15:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | SigNoz through 0.133.0 contains an open redirect vulnerability in the SSO authentication flow that allows unauthenticated attackers to steal session tokens from any user on instances configured with Google OAuth, SAML, or OIDC. Attackers can call the unauthenticated sessions context endpoint with a ref parameter pointing to an attacker-controlled host, deliver the resulting crafted login URL to a victim, and receive the victim's access and refresh tokens when they complete SSO authentication. | |
| Title | SigNoz 0.133.0 SSO OAuth State Manipulation Session Token Theft | |
| Weaknesses | CWE-345 CWE-601 |
|
| References |
| |
| Metrics |
cvssV3_1
|
MITRE
Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-07-17T14:22:22.677Z
Updated: 2026-07-27T17:17:11.454Z
Reserved: 2026-07-15T15:45:44.601Z
Link: CVE-2026-63094
Vulnrichment
Updated: 2026-07-21T01:38:58.238Z
NVD
No data.
Redhat
No data.