Linux · 
Fedora · Security advisory · April 29, 2026
Fedora · Security advisory · April 29, 2026FEDORA-2026-684396998A: Security update for 19 packages
FEDORA-2026-684396998A, released April 29, 2026, fixes 2 CVEs across 19 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
7.5
Base score, 0 to 10
Highest EPSS
0.0065
51st percentile
Priority of the 2 CVEs
Patch now 0
Urgent 0
High 2
Routine 0
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| krb5 | Fedora 43 | 1.22.2-4.fc43 |
| krb5-debuginfo | Fedora 43 | 1.22.2-4.fc43 |
| krb5-debugsource | Fedora 43 | 1.22.2-4.fc43 |
| krb5-devel | Fedora 43 | 1.22.2-4.fc43 |
| krb5-libs | Fedora 43 | 1.22.2-4.fc43 |
| krb5-libs-debuginfo | Fedora 43 | 1.22.2-4.fc43 |
| krb5-pkinit | Fedora 43 | 1.22.2-4.fc43 |
| krb5-pkinit-debuginfo | Fedora 43 | 1.22.2-4.fc43 |
| krb5-server | Fedora 43 | 1.22.2-4.fc43 |
| krb5-server-debuginfo | Fedora 43 | 1.22.2-4.fc43 |
| krb5-server-ldap | Fedora 43 | 1.22.2-4.fc43 |
| krb5-server-ldap-debuginfo | Fedora 43 | 1.22.2-4.fc43 |
| krb5-tests | Fedora 43 | 1.22.2-4.fc43 |
| krb5-workstation | Fedora 43 | 1.22.2-4.fc43 |
| krb5-workstation-debuginfo | Fedora 43 | 1.22.2-4.fc43 |
| krb5-xrealmauthz | Fedora 43 | 1.22.2-4.fc43 |
| krb5-xrealmauthz-debuginfo | Fedora 43 | 1.22.2-4.fc43 |
| libkadm5 | Fedora 43 | 1.22.2-4.fc43 |
| libkadm5-debuginfo | Fedora 43 | 1.22.2-4.fc43 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2026-40355 | krb5-admin-server: In MIT Kerberos 5 (aka krb5) before 1.22.3, there is a NULL pointer dereference if an application calls gss_accept_se... | 7.5 | 0.0065 | None reported |
| High | CVE-2026-40356 | krb5-admin-server: In MIT Kerberos 5 (aka krb5) before 1.22.3, there is an integer underflow and resultant out-of-bounds read if an appl... | 7.5 | 0.0060 | None reported |
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