CVE-2026-56132
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- CVE-2026-56132
CVE Details
| Release Date: | 2026-06-19 | |
| Impact: | Moderate | What is this? |
Description
In libexpat before 2.8.2, there is a heap-based buffer overflow in doProlog in xmlparse.c because scaffold backing array reallocation is mishandled when there is data-structure sharing across parsers.
See more information about CVE-2026-56132 from MITRE CVE dictionary and NIST NVD
NOTE: The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 metrics
| Base Score: | 6.9 |
| Vector String: | CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L |
| Version: | 3.1 |
| Attack Vector: | Local |
| Attack Complexity: | High |
| Privileges Required: | None |
| User Interaction: | None |
| Scope: | Unchanged |
| Confidentiality Impact: | High |
| Integrity Impact: | High |
| Availability Impact: | Low |
Errata information
| Platform | Errata | Release Date |
| Oracle Linux version 10 (expat) | ELSA-2026-64810-0 | 2026-09-08 |
| Oracle Linux version 8 (expat) | ELSA-2026-64809-0 | 2026-09-08 |
| Oracle Linux version 9 (expat) | ELSA-2026-64812-0 | 2026-09-08 |
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