CVE-2026-49445

CRITICALPre-NVD 9.29.2
EchelonGraph scoreLOW confidence

This critical-severity CVE scores 9.2 under the CNA's CVSS (NVD's own analysis pending). EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). 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: cna:github_m
9.2
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: —CVSS: 9.2Exploit: NoneExposed: 0

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

Cilium vulnerable to sensitive information disclosure and cluster disruption via local Envoy admin socket access

Impact

When Cilium L7 functionality is enabled on a cluster, the Envoy instance supporting this functionality creates a world-accessible socket on cluster nodes. A local attacker would be able to access Envoy admin endpoints. Depending on deployment configuration, this can expose sensitive information or allow disruptive administrative operations, such as:

  • Exposing TLS secrets
  • Disrupting traffic in the cluster
  • Terminating the Envoy process

This issue affects both the embedded and standalone Envoy deployment models.

Patches

This issue affects:

  • Cilium v1.19 between v1.19.0 and v1.19.1 inclusive
  • Cilium v1.18 between v1.18.0 and v1.18.7 inclusive
  • All versions of Cilium prior to v1.17.14

This issue has been patched in https://github.com/cilium/cilium/pull/44512, included in:

  • Cilium v1.19.2
  • Cilium v1.18.8
  • Cilium v1.17.14

Workarounds

There is no known workaround to this issue.

Acknowledgements

The Cilium community has worked together with members of Isovalent to prepare these mitigations. Special thanks to moemen for reporting the issue and 0xch4z for their work on triaging and remediating this issue.

For more information

If there are any questions or comments about this advisory, please reach out on Slack (https://docs.cilium.io/en/latest/community/community/).

If anyone thinks they have found a vulnerability affecting Cilium, it is strongly encouraged to report it to the security mailing list at [[email protected]. This is a private mailing list for the Cilium security team, and the report will be treated as a top priority.

CVSS v3
9.2
EG Score
9.2(low)
EPSS
—
KEV
Not listed

Published

July 6, 2026

Last Modified

July 6, 2026

Vendor Advisories for CVE-2026-49445(1)

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

Data Freshness Timeline

(refreshed 2× in last 7d / 2× 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. 2026-07-06 21:00 UTCEG score recompute
  2. 2026-07-06 17:22 UTCEG score recompute

Frequently asked(4)

What is CVE-2026-49445?
CVE-2026-49445 is a critical vulnerability published on July 6, 2026. Cilium vulnerable to sensitive information disclosure and cluster disruption via local Envoy admin socket access Impact When Cilium L7 functionality is enabled on a cluster, the Envoy instance supporting this functionality creates a world-accessible socket on cluster nodes. A local attacker would…
When was CVE-2026-49445 disclosed?
CVE-2026-49445 was first published in the National Vulnerability Database on July 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-49445?
CVE-2026-49445 has a CVSS v4.0 base score of 9.2 (CNA self-assessment; NVD's own analysis pending). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-49445?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-49445, 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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