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CVE-2026-49445

38
FAUCET Score

Cilium is a networking, observability, and security solution. Prior to 1.17.14, 1.18.8, and 1.19.2, when Cilium L7 functionality is enabled, the embedded or standalone Envoy instance creates a world-accessible admin.sock on cluster nodes, allowing a local attacker to access Envoy admin endpoints, expose TLS secrets, disrupt cluster traffic, or terminate Envoy. This issue is fixed in versions 1.17.14, 1.18.8, and 1.19.2.

First published: Jul 15, 2026Last modified: Jul 15, 2026

Impacted Technologies

VendorProductVersion(s)CPE
< 1.17.14CPE matchmatch criteria
cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:*
>= 1.18.0, < 1.18.8CPE matchmatch criteria
cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:*
>= 1.19.0, < 1.19.2CPE matchmatch criteria
cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.2CRITICAL

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
LOW
Availability Impact
HIGH
Exploitability Score
2.5
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.13%
Probability of exploitation in next 30 days
EPSS Percentile
2.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0013 is in the 12th percentile among its peer group of 17,061 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

github_advisorypatch availablevia nvd_reference
View patch
gopatch availablevia ghsa
Product: github.com/cilium/ciliumFixed in: 1.19.2
gopatch availablevia ghsa
Product: github.com/cilium/ciliumFixed in: 1.18.8
gopatch availablevia ghsa
Product: github.com/cilium/ciliumFixed in: 1.17.14

Vendor Advisories (1)

goGHSA-3fcv-jvfp-m4q9critical

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

Jul 6, 2026

References

github.com / cilium/cilium/commit/7bfbdd5c1be83d6c9ba3e089b4c804b6603505b6
Patch
github.com / cilium/cilium/pull/44512
Patch
github.com / cilium/cilium/releases/tag/v1.17.14
Release Notes
github.com / cilium/cilium/releases/tag/v1.18.8
Release Notes
github.com / cilium/cilium/releases/tag/v1.19.2
Release Notes
github.com / cilium/cilium/security/advisories/GHSA-3fcv-jvfp-m4q9
PatchVendor Advisory