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Echo: harfbuzz: security update to 10.2.0-1+b1+e1

medium Tenable Self-Hosted Container Security Plugin ID 457812

Description

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

 - HarfBuzz is a text shaping engine. Prior to version 12.3.0, a null pointer dereference vulnerability
 exists in the SubtableUnicodesCache::create function located in src/hb-ot-cmap-table.hh. The function
 fails to check if hb_malloc returns NULL before using placement new to construct an object at the returned
 pointer address. When hb_malloc fails to allocate memory (which can occur in low-memory conditions or when
 using custom allocators that simulate allocation failures), it returns NULL. The code then attempts to
 call the constructor on this null pointer using placement new syntax, resulting in undefined behavior and
 a Segmentation Fault. This issue has been patched in version 12.3.0. (CVE-2026-22693)

Solution

Update the harfbuzz library and its related packages to version 10.2.0-1+b1+e1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-22693

Plugin Details

Severity: Medium

ID: 457812

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2026-22693

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.8

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

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/10/2026

Vulnerability Publication Date: 1/10/2026

Reference Information

CVE: CVE-2026-22693

IAVA: 2026-A-0079