CVE-2026-0943: HarfBuzz::Shaper versions before 0.032 for Perl contains a bundled library with a null pointer dereference vulnerability

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-01-19 · updated 2026-06-17
Weakness: CWE-476

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.

Affected products

JV Harfbuzz::Shaper: before 0.032 — fixed in 0.032

How to fix

Upgrade to a fixed version: JV Harfbuzz::Shaper 0.032. Check the vendor advisory for mitigations.

References

https://bugzilla.redhat.com/show_bug.cgi?id=2429296
https://metacpan.org/release/JV/HarfBuzz-Shaper-0.032/changes
https://www.cve.org/CVERecord?id=CVE-2026-22693

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