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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-63094 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

Nist CVSS score does not match with CNA score
CNA:  VulnCheck
CVSS-B 7.6 HIGH
Vector:  CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/SigNoz/signoz/commit/253ca7dd7eb4f7a32a694c249eb0d5d0804d5619 VulnCheck
https://github.com/SigNoz/signoz/issues/11746 VulnCheck
https://github.com/SigNoz/signoz/pull/12172 VulnCheck
https://www.vulncheck.com/advisories/signoz-sso-oauth-state-manipulation-session-token-theft VulnCheck

Weakness Enumeration

CWE-ID CWE Name Source
CWE-345 Insufficient Verification of Data Authenticity VulnCheck  
CWE-601 URL Redirection to Untrusted Site ('Open Redirect') VulnCheck  

Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-63094
NVD Published Date:
07/17/2026
NVD Last Modified:
07/21/2026
Source:
VulnCheck