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SCA: security update for @feathersjs/authentication-oauth (GHSA-9m9c-vpv5-9g85)

high Tenable Self-Hosted Container Security Plugin ID 437879

Description

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

 - Feathersjs is a framework for creating web APIs and real-time applications with TypeScript or JavaScript.
 In versions 5.0.39 and below, all HTTP request headers are stored in the session cookie, which is signed
 but not encrypted, exposing internal proxy/gateway headers to clients. The OAuth service stores the
 complete headers object in the session, then the session is persisted using cookie-session, which
 base64-encodes the data. While the cookie is signed to prevent tampering, the contents are readable by
 anyone by simply decoding the base64 value. Under specific deployment configurations (e.g., behind reverse
 proxies or API gateways), this can lead to exposure of sensitive internal infrastructure details such as
 API keys, service tokens, and internal IP addresses. This issue has been fixed in version 5.0.40.
 (CVE-2026-27193)

See Also

https://github.com/advisories/GHSA-9m9c-vpv5-9g85

Plugin Details

Severity: High

ID: 437879

Version: Revision 1.11

Type: Local

Family: SCA Checks

Published: 2/20/2026

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: 4.9

Temporal Score: 3.6

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

CVSS Score Source: CVE-2026-27193

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

Vector: CVSS:3.0/AV:N/AC:H/PR:L/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: 8.2

Threat Score: 4.6

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 2/19/2026

Vulnerability Publication Date: 2/19/2026

Reference Information

CVE: CVE-2026-27193

cwe: CWE-200