CVE-2026-63094

HIGHPre-NVD 8.18.1—
EchelonGraph scoreHIGH confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-07-17. a secondary CVSS source baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
8.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.1Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
8.1
EG Score
8.1(high)
EG Risk
52(Track*)
EG Risk 52/100SSVC: Track*

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity81% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS
6.8%
KEV
Not listed

Published

July 17, 2026

Last Modified

July 21, 2026

Advisory Details (3)

Auto-updated Jul 17, 2026
No patch confirmed yet. Sources: github_pr.
generic

SigNoz 0.133.0 SSO OAuth State Manipulation Session Token Theft | Advisories | VulnCheck

https://www.vulncheck.com/advisories/signoz-sso-oauth-state-manipulation-session-token-theft
github_pr

fix(auth): prevent SSO session token theft via unvalidated redirects

Upstream fix in progress (PR #11844 · SigNoz/signoz, state=open)

https://github.com/SigNoz/signoz/pull/11844
generic

Open Redirect via Unvalidated OAuth State URL Leads to Token Exfiltration · Issue #11746 · SigNoz/signoz · GitHub

https://github.com/SigNoz/signoz/issues/11746

Vendor Advisories for CVE-2026-63094(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 836× in last 7d / 840× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 840 total refreshes for this CVE.

  1. 2026-07-24 14:18 UTCEPSS rescore
  2. 2026-07-24 14:18 UTCEPSS rescore
  3. 2026-07-23 14:18 UTCEPSS rescore
  4. 2026-07-23 14:18 UTCEPSS rescore
  5. 2026-07-23 03:22 UTCEG score recompute
  6. 2026-07-23 00:16 UTCEG score recompute
  7. 2026-07-23 00:15 UTCGHSA enrichment
  8. 2026-07-22 14:08 UTCEPSS rescore
  9. 2026-07-22 14:08 UTCEPSS rescore
  10. 2026-07-21 15:25 UTCEPSS rescore
  11. 2026-07-21 15:25 UTCEPSS rescore
  12. 2026-07-20 17:08 UTCEPSS rescore
  13. 2026-07-19 14:31 UTCEPSS rescore
  14. 2026-07-19 02:30 UTCEG score recompute
  15. 2026-07-19 02:30 UTCGHSA enrichment
  16. 2026-07-19 02:29 UTCEPSS rescore
  17. 2026-07-19 02:27 UTCGHSA enrichment
  18. 2026-07-19 02:26 UTCGHSA enrichment
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  1. 2026-07-19 02:10 UTCGHSA enrichment
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  47. 2026-07-18 23:56 UTCGHSA enrichment
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Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-63094?
CVE-2026-63094 is a high vulnerability published on July 17, 2026. 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…
When was CVE-2026-63094 disclosed?
CVE-2026-63094 was first published in the National Vulnerability Database on July 17, 2026, with the most recent update on July 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-63094 actively exploited?
CVE-2026-63094 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 6.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-63094?
CVE-2026-63094 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-63094?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-63094, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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