Linux · 
Fedora · Security advisory · September 3, 2026
Fedora · Security advisory · September 3, 2026FEDORA-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.
High
CVEs closed
2
None rated Critical
Exploited
0
None reported
Highest CVSS
7.8
Base score, 0 to 10
Highest EPSS
0.0029
21st percentile
Priority of the 2 CVEs
Patch now 0
Urgent 0
High 2
Routine 0
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| mingw-expat | Fedora 43 | 2.8.4-1.fc43 |
| mingw32-expat | Fedora 43 | 2.8.4-1.fc43 |
| mingw32-expat-debuginfo | Fedora 43 | 2.8.4-1.fc43 |
| mingw32-expat-static | Fedora 43 | 2.8.4-1.fc43 |
| mingw64-expat | Fedora 43 | 2.8.4-1.fc43 |
| mingw64-expat-debuginfo | Fedora 43 | 2.8.4-1.fc43 |
| mingw64-expat-static | Fedora 43 | 2.8.4-1.fc43 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2026-76956 | 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 | None reported |
| High | CVE-2026-76957 | 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 | None reported |
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