CVE-2026-32778 Null dereference in libexpat
A NULL pointer dereference in libexpat allows attackers to cause a denial of service via retry after an out-of-memory condition.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-32778?
CVE-2026-32778 is a low-severity vulnerability in Libexpat Project Libexpat, published on 16 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
libexpat before 2.7.5 allows a NULL pointer dereference in the function setContext on retry after an earlier ouf-of-memory condition.
Weakness: CWE-476
Which versions are affected by CVE-2026-32778?
It affects 1 product.
Products include Libexpat Project Libexpat.
How do I fix CVE-2026-32778?
Upgrade to a fixed version.
Is CVE-2026-32778 being exploited?
There is no known exploitation of CVE-2026-32778 in the wild and no public exploit code.
Other vulnerabilities in Libexpat Project Libexpat
Sources
Also known as ALPINE-CVE-2026-32778, AZL-79856, BELL-CVE-2026-32778, CLSA-2026-1774611572, DEBIAN-CVE-2026-32778, ECHO-3af7-0bd3-2a49 and 5 more.