CVE-2026-0943 — NULL Pointer Dereference in Harfbuzz Shaper

CWE-476 — NULL Pointer Dereference5 documents5 sources
Severity
7.5HIGHNVD
EPSS
0.1%
top 65.66%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
JV Harfbuzz ShaperJV HarfbuzzDebian Libharfbuzz-shaper-perl
Timeline
PublishedJan 19

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages3 packages

▶CVEListV5jv/harfbuzz_shaper< 0.032
▶NVDjv/harfbuzz< 0.032

🔴Vulnerability Details

2
OSV
CVE-2026-0943: HarfBuzz::Shaper versions before 0↗2026-01-19
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GHSA
GHSA-hmr2-524c-vv28: HarfBuzz::Shaper versions before 0↗2026-01-19
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📋Vendor Advisories

1
Debian
CVE-2026-0943: libharfbuzz-shaper-perl - HarfBuzz::Shaper versions before 0.032 for Perl contains a bundled library with ...↗2026
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🕵️Threat Intelligence

1
Wiz
CVE-2026-0943 Impact, Exploitability, and Mitigation Steps | Wiz↗
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