# FEDORA-2026-4A2EE61320: Security update for 7 packages

FEDORA-2026-4A2EE61320, released September 3, 2026, fixes 2 CVEs across 7 products. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/fedora-2026-4a2ee61320
- Platform: Linux
- Released: Sep 3, 2026
- Priority: High (Closes CVE-2026-76956, high severity)
- CVEs: 2, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://bodhi.fedoraproject.org/updates/FEDORA-2026-4a2ee61320

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [mingw-expat](https://patchblox.com/security/data/product/linux/mingw-expat.md) | Fedora 43 | 2.8.4-1.fc43 |
| [mingw32-expat](https://patchblox.com/security/data/product/linux/mingw32-expat.md) | Fedora 43 | 2.8.4-1.fc43 |
| [mingw32-expat-debuginfo](https://patchblox.com/security/data/product/linux/mingw32-expat-debuginfo.md) | Fedora 43 | 2.8.4-1.fc43 |
| [mingw32-expat-static](https://patchblox.com/security/data/product/linux/mingw32-expat-static.md) | Fedora 43 | 2.8.4-1.fc43 |
| [mingw64-expat](https://patchblox.com/security/data/product/linux/mingw64-expat.md) | Fedora 43 | 2.8.4-1.fc43 |
| [mingw64-expat-debuginfo](https://patchblox.com/security/data/product/linux/mingw64-expat-debuginfo.md) | Fedora 43 | 2.8.4-1.fc43 |
| [mingw64-expat-static](https://patchblox.com/security/data/product/linux/mingw64-expat-static.md) | Fedora 43 | 2.8.4-1.fc43 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-76956](https://patchblox.com/security/data/cve/CVE-2026-76956.md) | High | In libexpat 2.8.2 and 2.8.3 before 2.8.4, misinterpretation of getentropy's return code leads to insufficient entropy, which results in being vulnerable to hash flooding attacks, causing a denial of service via crafted XML content. | 7.5 | 0.0029 |  |
| [CVE-2026-76957](https://patchblox.com/security/data/cve/CVE-2026-76957.md) | High | libexpat before 2.8.4 lacks handler call depth tracking with custom encoding callbacks. Thus, a use-after-free can occur. NOTE: this is similar to CVE-2026-50219, CVE-2026-56131 and CVE-2026-56412. | 7.8 | 0.0011 |  |

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Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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