Detections
Analytics

SCA: security update for h3 (GHSA-26f5-8h2x-34xh)

medium Tenable Cloud Security Plugin ID 438941

Description

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

 - H3 is a minimal H(TTP) framework. Versions 2.0.1-beta.0 through 2.0.0-rc.8 contain a Timing Side-Channel
 vulnerability in the requireBasicAuth function due to the use of unsafe string comparison (!==). This
 allows an attacker to deduce the valid password character-by-character by measuring the server's response
 time, effectively bypassing password complexity protections. This issue is fixed in version 2.0.1-rc.9.
 (CVE-2026-33129)

Solution

Update the h3 library and its related packages to version 2.0.1-rc.9 or later.

See Also

https://github.com/advisories/GHSA-26f5-8h2x-34xh

Plugin Details

Severity: Medium

ID: 438941

Version: Revision 1.8

Type: Local

Family: SCA Checks

Published: 3/18/2026

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: Medium

CVSS v2

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.2

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

CVSS Score Source: CVE-2026-33129

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.3

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

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/18/2026

Vulnerability Publication Date: 3/18/2026

Reference Information

CVE: CVE-2026-33129

cwe: CWE-208