Detections
Analytics

SCA: security update for github.com/oauth2-proxy/oauth2-proxy/v7 (GHSA-5hvv-m4w4-gf6v)

critical Tenable Self-Hosted Container Security Plugin ID 440379

Description

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

 - OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. Versions prior to
 7.15.2 contain a configuration-dependent authentication bypass in deployments where OAuth2 Proxy is used
 with an auth_request-style integration (such as nginx auth_request) and either --ping-user-agent is set or
 --gcp-healthchecks is enabled. In affected configurations, OAuth2 Proxy treats any request with the
 configured health check User-Agent value as a successful health check regardless of the requested path,
 allowing an unauthenticated remote attacker to bypass authentication and access protected upstream
 resources. Deployments that do not use auth_request-style subrequests or that do not enable --ping-user-
 agent/--gcp-healthchecks are not affected. This issue is fixed in 7.15.2. (CVE-2026-34457)

Solution

Update the github.com/oauth2-proxy/oauth2-proxy/v7 library and its related packages to version 7.15.2 or later.

See Also

https://github.com/advisories/GHSA-5hvv-m4w4-gf6v

Plugin Details

Severity: Critical

ID: 440379

Version: Revision 1.5

Type: Local

Family: SCA Checks

Published: 4/15/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.63

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7

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

CVSS Score Source: CVE-2026-34457

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 4/14/2026

Vulnerability Publication Date: 4/14/2026

Reference Information

CVE: CVE-2026-34457

cwe: CWE-290