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SCA: security update for github.com/envoyproxy/gateway (GHSA-wcrf-9vrr-854f)

critical Tenable Cloud Security Plugin ID 444808

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based
 application gateway. Prior to 1.7.4 and 1.8.1, to_absolute_normalized_path in
 internal/gatewayapi/luavalidator/security.lua does not collapse redundant separators before
 is_critical_path evaluates Lua submitted through EnvoyExtensionPolicy during default Strict validation.
 Linux resolves a double-slash absolute path as the corresponding single-slash path, but the validator does
 not match the redundant-separator form, allowing submitted Lua to read arbitrary files from the gateway
 controller pod. Exposed files can include Kubernetes service-account tokens, TLS certificates, and process
 environment data, and the disclosed credentials can provide access to sensitive Kubernetes API Server or
 Gateway xDS server information. This issue is fixed in versions 1.7.4 and 1.8.1. (CVE-2026-53713)

Solution

Update the github.com/envoyproxy/gateway library and its related packages to version 1.7.4 or later.

See Also

https://github.com/advisories/GHSA-wcrf-9vrr-854f

Plugin Details

Severity: Critical

ID: 444808

Version: Revision 1.3

Type: Local

Family: SCA Checks

Published: 7/17/2026

Updated: 9/15/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

Percentile: 57.56

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: High

Base Score: 8

Temporal Score: 5.9

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:P/A:P

CVSS Score Source: CVE-2026-53713

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 7/16/2026

Vulnerability Publication Date: 7/16/2026

Reference Information

CVE: CVE-2026-53713

cwe: CWE-20