CVE-2026-32778
Public on 2026-03-16
Modified on 2026-03-18
Description
A flaw was found in libexpat. This vulnerability allows an attacker to trigger a NULL pointer dereference in the `setContext` function. This occurs when the system attempts to retry an operation after an out-of-memory condition, which can lead to a Denial of Service (DoS) for the affected application.
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 2 - Core | expat | Pending Fix | ||
| Amazon Linux 2023 | expat | Pending Fix | ||
| Amazon Linux 2 - Firefox Extra | firefox | 2026-04-01 | ALAS2FIREFOX-2026-055 | Fixed |
| Amazon Linux 2023 | firefox | 2026-04-01 | ALAS2023-2026-1518 | Fixed |
| Amazon Linux 2 - Core | thunderbird | 2026-04-01 | ALAS2-2026-3219 | Fixed |
| Amazon Linux 2023 | xmlrpc-c | Not Affected |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVD | CVSSv3 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |