CVE-2026-49445

Secret disclosure and disruption via world-accessible socket

Published Jul 15, 2026 · Updated Jul 15, 2026

Incorrect permissions on Cilium's Envoy socket before 1.17.14, 1.18.0 through 1.18.7, and 1.19.0 through 1.19.1 allow local users to read TLS secrets. The embedded and standalone Envoy bootstrap configurations omit an explicit mode for /var/run/cilium/envoy/sockets/admin.sock, so Envoy creates it world-accessible. Cilium L7 functionality must be enabled and attackers need local node access; the exposed admin endpoints also permit cluster-traffic disruption and Envoy termination.

CVSS severity9.2
Critical
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect permissions on Cilium's Envoy socket before 1.17.14, 1.18.0 through 1.18.7, and 1.19.0 through 1.19.1 allow local users to read TLS secrets. The embedded and standalone Envoy bootstrap configurations omit an explicit mode for /var/run/cilium/envoy/sockets/admin.sock, so Envoy creates it world-accessible. Cilium L7 functionality must be enabled and attackers need local node access; the exposed admin endpoints also permit cluster-traffic disruption and Envoy termination.

The record

CVE
CVE-2026-49445
Published
Jul 15, 2026
Updated
Jul 15, 2026
Vendor
Cilium
Product
Cilium
Classifications
CWE-732, T1489
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.17.14
  2. Affected versionversion=>= 1.18.0, < 1.18.8
  3. Affected versionversion=>= 1.19.0, < 1.19.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Cilium · Ciliumversion=< 1.17.14; version=>= 1.18.0, < 1.18.8; version=>= 1.19.0, < 1.19.2

Published CVSS scores

9.2GitHub, Inc.CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:H
8.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-732Incorrect Permission Assignment for Critical Resource
T1489Service Stop

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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