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SCA: security update for @cloudflare/workers-oauth-provider (GHSA-qgp8-v765-qxx9)

medium Tenable Cloud Security Plugin ID 434698

Description

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

 - PKCE was implemented in the OAuth implementation in workers-oauth-provider that is part of MCP framework
 https://github.com/cloudflare/workers-mcp . However, it was found that an attacker could cause the check
 to be skipped. Fixed in: https://github.com/cloudflare/workers-oauth-provider/pull/27
 https://github.com/cloudflare/workers-oauth-provider/pull/27 Impact: PKCE is a defense-in-depth mechanism
 against certain kinds of attacks and was an optional extension in OAuth 2.0 which became required in the
 OAuth 2.1 draft. (Note that the MCP specification requires OAuth 2.1.). This bug completely bypasses PKCE
 protection. (CVE-2025-4144)

See Also

https://github.com/advisories/GHSA-qgp8-v765-qxx9

Plugin Details

Severity: Medium

ID: 434698

Version: Revision 1.12

Type: Local

Family: SCA Checks

Published: 8/19/2025

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.88

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2025-4144

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

CVSS v4

Risk Factor: Medium

Base Score: 5.3

Threat Score: 1.3

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 5/1/2025

Vulnerability Publication Date: 5/1/2025

Reference Information

CVE: CVE-2025-4144

cwe: CWE-287