CVE-2026-11751

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: 0.2%, top 85% 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.

A vulnerability has been identified in armeria-xds versions prior to 1.41.0, where xDS upstream TLS peer verification may be silently disabled, allowing man-in-the-middle attacks against xDS-managed upstream connections.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
41(Track)
EG Risk 41/100SSVC: 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%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
15%
KEV
Not listed

Published

August 19, 2026

Last Modified

August 28, 2026

Advisory Details (2)

Auto-updated Aug 29, 2026
Patch available. Sources: github.
generic

CVE-2026-11751 - LY Corporation

https://line.github.io/security-advisory-blog/CVE-2026-11751/
github Patch Available

Improper Certificate Validation in xDS Upstream TLS · Advisory · line/armeria · GitHub

https://github.com/line/armeria/security/advisories/GHSA-6qfw-3mvj-m6v5

Data Freshness Timeline

(refreshed 11× in last 7d / 24× 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 03:45 UTCEG score recompute
  2. 2026-08-30 01:21 UTCEPSS rescore
  3. 2026-08-28 21:43 UTCEG score recompute
  4. 2026-08-28 21:40 UTCEPSS rescore
  5. 2026-08-27 16:25 UTCEG score recompute
  6. 2026-08-27 14:24 UTCEPSS rescore
  7. 2026-08-26 15:20 UTCEG score recompute
  8. 2026-08-25 14:14 UTCEG score recompute
  9. 2026-08-25 13:48 UTCEPSS rescore
  10. 2026-08-24 17:02 UTCEG score recompute
  11. 2026-08-24 12:19 UTCEG score recompute
  12. 2026-08-23 02:59 UTCEG score recompute
  13. 2026-08-23 00:19 UTCEPSS rescore
  14. 2026-08-22 01:57 UTCEG score recompute
  15. 2026-08-21 23:48 UTCEPSS rescore
  16. 2026-08-21 00:57 UTCEG score recompute
  17. 2026-08-20 22:55 UTCEPSS rescore
  18. 2026-08-20 16:38 UTCEG score recompute
  19. 2026-08-20 15:46 UTCEG score recompute
  20. 2026-08-19 18:59 UTCEG score recompute
  21. 2026-08-19 17:03 UTCEPSS rescore
  22. 2026-08-19 02:20 UTCEG score recompute
  23. 2026-08-19 01:48 UTCEG score recompute
  24. 2026-08-19 01:47 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-11751?
CVE-2026-11751 is a critical vulnerability published on August 19, 2026. A vulnerability has been identified in armeria-xds versions prior to 1.41.0, where xDS upstream TLS peer verification may be silently disabled, allowing man-in-the-middle attacks against xDS-managed upstream connections.
When was CVE-2026-11751 disclosed?
CVE-2026-11751 was first published in the National Vulnerability Database on August 19, 2026, with the most recent update on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-11751 actively exploited?
CVE-2026-11751 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 84.5% of all scored CVEs.
What is the CVSS score of CVE-2026-11751?
CVE-2026-11751 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-11751?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-11751, 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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