CVE-2026-32778: Null Pointer Dereference
Last updated 21 September 2026
Other sources
libexpat before 2.7.5 allows a NULL pointer dereference in the function setContext on retry after an earlier ouf-of-memory condition.
— MITRE
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/expatto a version that resolves this vulnerability.Fixed in 2.8.3-1~deb13u1Fixed in 2.8.4-1Fixed in 2.8.4-2 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 2.6.4-5 - Upgrade
Upgrade
libexpatto a version that resolves this vulnerability.Fixed in 2.7.5
Event History
Frequently Asked Questions
What is the severity of CVE-2026-32778?
CVE-2026-32778 has a medium severity rating due to the potential for a NULL pointer dereference that can lead to application crashes.
How do I fix CVE-2026-32778?
To fix CVE-2026-32778, upgrade libexpat to version 2.7.5 or later.
What software is affected by CVE-2026-32778?
CVE-2026-32778 affects libexpat versions prior to 2.7.5.
What type of vulnerability is CVE-2026-32778?
CVE-2026-32778 is a NULL pointer dereference vulnerability.
What risks does CVE-2026-32778 pose?
CVE-2026-32778 can lead to application crashes and potentially impact system stability.