Dashboard / CVE-2026-63094

CVE-2026-63094

HIGH
MEDIUM Priority: 0.02 BB Relevance: 65/100
Published: 2026-07-17 Modified: 2026-11-08 First seen: 2026-11-08 Status: active

Attack Surface

Network Low Complexity No Auth Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Passive
AT: Present
VC: High
VI: High
VA: None

Description

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.

Weakness Classification (2)

Affected Software (1)

VendorProductVersion
SigNoz signoz 0 < 0.134.0

References & Advisories (5)

https://github.com/SigNoz/signoz/issues/11746
technical-description exploit issue-tracking

Bug Bounty Relevance

65 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

7.6 / 10.0 v4.0
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

EPSS — Exploitation Probability

0.26%
Raw Score 0.002620
Percentile 18.2%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00262
2026-11-12
0.00262
2026-11-10
0.00262
2026-11-09
0.00262
2026-11-08
0.00262

Intelligence Sources

mitre ref →

External Links