Linux · 
Red Hat · Security advisory · May 15, 2026
Red Hat · Security advisory · May 15, 2026RHSA-2026:23228: image-builder security update
RHSA-2026:23228, released May 15, 2026, fixes 6 CVEs in image-builder (version 0:52.1-1.el9_8). None of them is reported as exploited. Patch Radar priority: High.
High
CVEs closed
6
None rated Critical
Exploited
0
None reported
Highest CVSS
9.1
Base score, 0 to 10
Highest EPSS
0.0162
76th percentile
Priority of the 6 CVEs
Patch now 0
Urgent 0
High 6
Routine 0
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| image-builder | RHEL 9 | 0:52.1-1.el9_8 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2026-33186 | gRPC-Go has an authorization bypass via missing leading slash in :path | 9.1 | 0.0162 | None reported |
| High | CVE-2026-25679 | Incorrect parsing of IPv6 host literals in net/url | 9.1 | 0.0083 | None reported |
| High | CVE-2026-34986 | osbuild-composer: A service for building customized OS artifacts, such as VM images and OSTree commits, that uses osbuild under the hood | 9.1 | 0.0066 | None reported |
| High | CVE-2026-27137 | Incorrect enforcement of email constraints in crypto/x509 | 9.1 | 0.0066 | None reported |
| High | CVE-2026-32283 | Unauthenticated TLS 1.3 KeyUpdate record can cause persistent connection retention and DoS in crypto/tls | 9.1 | 0.0063 | None reported |
| High | CVE-2026-32282 | TOCTOU permits root escape on Linux via Root.Chmod in os in internal/syscall/unix | 9.1 | 0.0030 | None reported |
Showing 1 to 6 of 6
1
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.