Detections
Analytics

SCA: security update for h3 (GHSA-22cc-p3c6-wpvm)

critical Tenable Cloud Security Plugin ID 438949

Description

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

 - H3 is a minimal H(TTP) framework. In versions prior to 1.15.6 and between 2.0.0 through 2.0.1-rc.14,
 createEventStream is vulnerable to Server-Sent Events (SSE) injection due to missing newline sanitization
 in formatEventStreamMessage() and formatEventStreamComment(). An attacker who controls any part of an SSE
 message field (id, event, data, or comment) can inject arbitrary SSE events to connected clients. This
 issue is fixed in versions 1.15.6 and 2.0.1-rc.15. (CVE-2026-33128)

Solution

Update the h3 library and its related packages to version 1.15.6 or later.

See Also

https://github.com/advisories/GHSA-22cc-p3c6-wpvm

Plugin Details

Severity: Critical

ID: 438949

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: Medium

Score: 5

Percentile: 94.39

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2026-33128

CVSS v3

Risk Factor: Critical

Base Score: 10

Temporal Score: 9

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

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-2026-33128

cwe: CWE-93