CVE-2026-0943
HarfBuzz::Shaper versions before 0.032 for Perl contains a bundled library with a null pointer dereference vulnerability
Description
HarfBuzz::Shaper versions before 0.032 for Perl contains a bundled library with a null pointer dereference vulnerability. Versions before 0.032 contain HarfBuzz 8.4.0 or earlier bundled as hb_src.tar.gz in the source tarball, which is affected by CVE-2026-22693.
INFO
Published Date :
Jan. 19, 2026, 4:15 a.m.
Last Modified :
March 4, 2026, 2:48 p.m.
Remotely Exploit :
Yes !
Source :
9b29abf9-4ab0-4765-b253-1875cd9b441e
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Update HarfBuzz::Shaper to version 0.032 or later.
- Verify the bundled HarfBuzz library version.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-0943.
| URL | Resource |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=2429296 | Third Party Advisory |
| https://metacpan.org/release/JV/HarfBuzz-Shaper-0.032/changes | Product Release Notes |
| https://www.cve.org/CVERecord?id=CVE-2026-22693 | VDB Entry Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-0943 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-0943
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-0943 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-0943 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Mar. 04, 2026
Action Type Old Value New Value Added CWE CWE-476 Added CPE Configuration OR *cpe:2.3:a:jv:harfbuzz::shaper:*:*:*:*:*:perl:*:* versions up to (excluding) 0.032 Added Reference Type CPANSec: https://bugzilla.redhat.com/show_bug.cgi?id=2429296 Types: Third Party Advisory Added Reference Type CPANSec: https://metacpan.org/release/JV/HarfBuzz-Shaper-0.032/changes Types: Product, Release Notes Added Reference Type CPANSec: https://www.cve.org/CVERecord?id=CVE-2026-22693 Types: Third Party Advisory, VDB Entry -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jan. 20, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H -
New CVE Received by 9b29abf9-4ab0-4765-b253-1875cd9b441e
Jan. 19, 2026
Action Type Old Value New Value Added Description HarfBuzz::Shaper versions before 0.032 for Perl contains a bundled library with a null pointer dereference vulnerability. Versions before 0.032 contain HarfBuzz 8.4.0 or earlier bundled as hb_src.tar.gz in the source tarball, which is affected by CVE-2026-22693. Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2429296 Added Reference https://metacpan.org/release/JV/HarfBuzz-Shaper-0.032/changes Added Reference https://www.cve.org/CVERecord?id=CVE-2026-22693