CVE-2026-71485

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 65% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.1Exploit: None knownExposed: 0

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

Centrifugo is an open-source scalable real-time messaging server. Prior to 6.9.0, Centrifugo copies the client-controlled protocol.ConnectRequest.headers map through OnClientConnecting in internal/client/handler.go, ConnectEvent.Headers, and SetEmulatedHeadersToContext. The requestHeaders path in internal/proxy/http.go, the requestMetadata path in internal/proxy/grpc.go, and the Consume path in internal/unigrpc/grpc.go can forward an allowlisted value as a trusted backend header or metadata value. A remote client can spoof a header such as x-trusted-user for connect, refresh, subscribe, publish, RPC, and related proxy calls when the backend relies on that header for authentication or authorization. The unidirectional gRPC transport has no transport-level HTTP header that can override the emulated value. This issue is fixed in version 6.9.0.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
56(Track)
EG Risk 56/100SSVC: 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
Severity91% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
35%
KEV
Not listed

Published

August 20, 2026

Last Modified

August 25, 2026

Advisory Details (4)

Auto-updated Aug 29, 2026
Patch available. Sources: github_release, github, github_commit, github_pr.
github Patch Available

Client-forgeable headers emulation lets any client spoof headers forwarded to proxy backends · Advisory · centrifugal/centrifugo · GitHub

https://github.com/centrifugal/centrifugo/security/advisories/GHSA-9468-v6mj-fppw
github_release Patch Available

v6.9.0

Patch available: centrifugal/centrifugo v6.9.0

https://github.com/centrifugal/centrifugo/releases/tag/v6.9.0
github_pr

Explicit client emulated headers configuration

Fix merged in centrifugal/centrifugo PR #1182 on 2026-07-06 — awaiting tagged release

https://github.com/centrifugal/centrifugo/pull/1182
github_commit

commit 84d38cea1dd2 (centrifugal/centrifugo)

Fix landed in centrifugal/centrifugo commit 84d38cea1dd2 — awaiting tagged release

https://github.com/centrifugal/centrifugo/commit/84d38cea1dd2efa24375a148817a974c8727f4b0

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 20× 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.

  1. 2026-08-30 02:47 UTCEG score recompute
  2. 2026-08-30 01:22 UTCEPSS rescore
  3. 2026-08-29 01:28 UTCEG score recompute
  4. 2026-08-28 21:42 UTCEPSS rescore
  5. 2026-08-27 15:08 UTCEG score recompute
  6. 2026-08-26 17:53 UTCEG score recompute
  7. 2026-08-26 14:47 UTCEPSS rescore
  8. 2026-08-25 16:26 UTCEG score recompute
  9. 2026-08-25 15:30 UTCEG score recompute
  10. 2026-08-25 14:56 UTCEG score recompute
  11. 2026-08-25 13:49 UTCEPSS rescore
  12. 2026-08-24 17:52 UTCEG score recompute
  13. 2026-08-24 09:28 UTCEG score recompute
  14. 2026-08-23 04:00 UTCEG score recompute
  15. 2026-08-23 00:19 UTCEPSS rescore
  16. 2026-08-22 02:48 UTCEG score recompute
  17. 2026-08-21 23:49 UTCEPSS rescore
  18. 2026-08-20 21:22 UTCEG score recompute
  19. 2026-08-20 21:07 UTCEG score recompute
  20. 2026-08-20 21:06 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-71485?
CVE-2026-71485 is a critical vulnerability published on August 20, 2026. Centrifugo is an open-source scalable real-time messaging server. Prior to 6.9.0, Centrifugo copies the client-controlled protocol.ConnectRequest.headers map through OnClientConnecting in internal/client/handler.go, ConnectEvent.Headers, and SetEmulatedHeadersToContext. The requestHeaders path in…
When was CVE-2026-71485 disclosed?
CVE-2026-71485 was first published in the National Vulnerability Database on August 20, 2026, with the most recent update on August 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-71485 actively exploited?
CVE-2026-71485 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 64.9% of all scored CVEs.
What is the CVSS score of CVE-2026-71485?
CVE-2026-71485 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-71485?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-71485, 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.

Dependency Blast Radius

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