SCA: security update for github.com/hyperledger/fabric-ca (GHSA-xghw-p77p-3r7x)

medium Tenable Self-Hosted Container Security Plugin ID 445983

Description

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

- Fabric CA is a Certificate Authority for Hyperledger Fabric. Prior to 1.5.21, when fabric-ca is configured
with an LDAP backend, Client.GetUser in lib/server/ldap/client.go inserts the username from HTTP Basic
authentication into the LDAP uid search UserFilter without escaping LDAP metacharacters. An
unauthenticated attacker with network access to the CA enrollment endpoint can alter the LDAP search
before password validation and potentially steer authentication attempts toward a victim account.
Deployments that do not use an LDAP backend are unaffected. This issue is fixed in version 1.5.21.
(CVE-2026-53658)

Solution

Update the github.com/hyperledger/fabric-ca library and its related packages to version 1.5.21 or later.

Plugin Details

Severity: Medium

ID: 445983

Version: Revision 1.3

Type: Local

Family: SCA Checks

Published: 8/15/2026

Updated: 9/16/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.41

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2026-53658

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: 6.3

Threat Score: 1.7

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 8/14/2026

Vulnerability Publication Date: 8/14/2026

Reference Information

CVE: CVE-2026-53658

cwe: CWE-90

Detections

Analytics