Detections
Analytics

SCA: security update for org.http4s:http4s-ember-core_2.12, org.http4s:http4s-ember-core_2.13, org.http4s:http4s-ember-core_3 (GHSA-gq9p-f254-h286)

high Tenable Self-Hosted Container Security Plugin ID 447996

Description

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

 - Http4s is a Scala interface for HTTP services. Prior to 0.23.37 and 1.0.0-M48, Ember’s HTTP/2 read loop
 parses a frame’s 24-bit declared length but waits to buffer the entire payload before comparing it with
 SETTINGS_MAX_FRAME_SIZE. An unauthenticated peer can declare a payload near 16 MiB on a connection where
 Ember advertised 16 KiB and either complete or slowly stream it, causing up to 1024-fold memory
 amplification per connection before processFrame can reject the frame. The shared H2Connection.readLoop
 affects withHttp2 servers and clients, while HTTP/2-disabled configurations are unaffected, and the patch
 rejects oversized frames before buffering their payloads. This issue is fixed in versions 0.23.37 and
 1.0.0-M48. (CVE-2026-88975)

Solution

Update the org.http4s:http4s-ember-core_2.12 library and its related packages to version 0.23.37 or later.

See Also

https://github.com/advisories/GHSA-gq9p-f254-h286

Plugin Details

Severity: High

ID: 447996

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 9/16/2026

Updated: 9/16/2026

Risk Information

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-88975

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 9/15/2026

Vulnerability Publication Date: 9/15/2026

Reference Information

CVE: CVE-2026-88975

cwe: CWE-400