CVE-2026-49445
Cilium: Sensitive information disclosure and cluster disruption via local Envoy admin socket access
Description
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.
INFO
Published Date :
July 15, 2026, 8:17 p.m.
Last Modified :
July 17, 2026, 5:50 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update Cilium to version 1.17.14 or later.
- Update Cilium to version 1.18.8 or later.
- Update Cilium to version 1.19.2 or later.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-49445.
| URL | Resource |
|---|---|
| https://github.com/cilium/cilium/commit/7bfbdd5c1be83d6c9ba3e089b4c804b6603505b6 | Patch |
| https://github.com/cilium/cilium/pull/44512 | Patch |
| https://github.com/cilium/cilium/releases/tag/v1.17.14 | Release Notes |
| https://github.com/cilium/cilium/releases/tag/v1.18.8 | Release Notes |
| https://github.com/cilium/cilium/releases/tag/v1.19.2 | Release Notes |
| https://github.com/cilium/cilium/security/advisories/GHSA-3fcv-jvfp-m4q9 | Patch Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-49445 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-49445
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-49445 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-49445 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Jul. 17, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H Added CPE Configuration OR *cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:* versions up to (excluding) 1.17.14 *cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:* versions from (including) 1.18.0 up to (excluding) 1.18.8 *cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:* versions from (including) 1.19.0 up to (excluding) 1.19.2 Added Reference Type GitHub, Inc.: https://github.com/cilium/cilium/commit/7bfbdd5c1be83d6c9ba3e089b4c804b6603505b6 Types: Patch Added Reference Type GitHub, Inc.: https://github.com/cilium/cilium/pull/44512 Types: Patch Added Reference Type GitHub, Inc.: https://github.com/cilium/cilium/releases/tag/v1.17.14 Types: Release Notes Added Reference Type GitHub, Inc.: https://github.com/cilium/cilium/releases/tag/v1.18.8 Types: Release Notes Added Reference Type GitHub, Inc.: https://github.com/cilium/cilium/releases/tag/v1.19.2 Types: Release Notes Added Reference Type GitHub, Inc.: https://github.com/cilium/cilium/security/advisories/GHSA-3fcv-jvfp-m4q9 Types: Patch, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 16, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-49445', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-07-16T14:59:40.745501Z'} -
New CVE Received by [email protected]
Jul. 15, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'cilium', 'product': 'cilium', 'versions': [{'status': 'affected', 'version': '< 1.17.14'}, {'status': 'affected', 'version': '>= 1.18.0, < 1.18.8'}, {'status': 'affected', 'version': '>= 1.19.0, < 1.19.2'}]}] Added Description 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. Added CVSS V3.1 AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:H Added CWE CWE-732 Added Reference https://github.com/cilium/cilium/commit/7bfbdd5c1be83d6c9ba3e089b4c804b6603505b6 Added Reference https://github.com/cilium/cilium/pull/44512 Added Reference https://github.com/cilium/cilium/releases/tag/v1.17.14 Added Reference https://github.com/cilium/cilium/releases/tag/v1.18.8 Added Reference https://github.com/cilium/cilium/releases/tag/v1.19.2 Added Reference https://github.com/cilium/cilium/security/advisories/GHSA-3fcv-jvfp-m4q9