SCA: security update for github.com/open-policy-agent/opa-envoy-plugin (GHSA-9f29-v6mm-pw6w)

high Tenable Self-Hosted Container Security Plugin ID 437822

Description

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

- opa-envoy-plugun is a plugin to enforce OPA policies with Envoy. Versions prior to 1.13.2-envoy-2 have a
vulnerability in how the `input.parsed_path` field is constructed. HTTP request paths are treated as full
URIs when parsed; interpreting leading path segments prefixed with double slashes (`//`) as authority
components, and therefore dropping them from the parsed path. This creates a path interpretation mismatch
between authorization policies and backend servers, enabling attackers to bypass access controls by
crafting requests where the authorization filter evaluates a different path than the one ultimately
served. Version 1.13.2-envoy-2 fixes the issue. (CVE-2026-26205)

Plugin Details

Severity: High

ID: 437822

Version: Revision 1.10

Type: Local

Family: SCA Checks

Published: 2/18/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.73

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS Score Source: CVE-2026-26205

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

CVSS v4

Risk Factor: High

Base Score: 7.1

Threat Score: 2.9

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 2/18/2026

Vulnerability Publication Date: 2/18/2026

Reference Information

CVE: CVE-2026-26205

cwe: CWE-863

Detections

Analytics