Vulnerability Report

CVE-2025-46821

Title: Envoyproxy Envoy

Other

Proof Of Concept

No public PoC currently indexed for CVE-2025-46821.

CWE Category CWE-186

Published Date May 07, 2025

Modified Date Sep 03, 2025

Exploit Status Not Found

Score 5.3 CVSS v3.1

Exploit Probability (EPSS)

0.22%

Vulnerability Summary

CVE-2025-46821: Envoy is a cloud-native edge/middle/service proxy. Prior to versions 1.34.1, 1.33.3, 1.32.6, and 1.31.8, Envoy's URI template matcher incorrectly excludes the `*` character from a set of valid characters in the URI path. As a result URI path containing the `*` character will not match a URI template expressions. This can result in bypass of RBAC rules when configured using the `uri_template` permissions. This vulnerability is fixed in Envoy versions v1.34.1, v1.33.3, v1.32.6, v1.31.8. As a workaround, configure additional RBAC permissions using `url_path` with `safe_regex` expression.

Impacted Vendors

enphase 1

envoyproxy 1

Reference Links

https://github.com/envoyproxy/envoy/security/advisories/GHSA-c7cm-838g-6g67

CVSS v3.1

Source Entity [email protected]

Severity MEDIUM

5.3

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS v3.1

Source Entity [email protected]

Severity MEDIUM

5.3

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2025-46821 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

September 03, 2025 MODIFIED

Vulnerability data or affected products updated.

September 03, 2025 MODIFIED

Vulnerability data updated via NVD.

May 07, 2025 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK

Complexity LOW

Privileges N/A

Interaction NONE

CVSS Vector String


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

Affected Stack

No specific products linked.