CVE-2026-78367
Fixed in a distro release EPSS <1%CVSS 7.0
A vulnerability was found in RPM's rpmbuild tarball processing. When processing a crafted source archive, the getTarSpec() function in tools/rpmbuild.cc passes an attacker-controlled tar archive member name to rpmExpand() as part of a %{basename:...} macro expression. A specially crafted .spec member name can therefore inject RPM macros, including Lua expressions, resulting in arbitrary code execution with the privileges of the user running rpmbuild. This can be exploited when a victim or automated build system processes an attacker-controlled source tarball using rpmbuild tarball mode (such as -ts, -ta, or -tb).
Products: Red Hat Hardened Images, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | rpm | no fix |
| Debian 13 | rpm | no fix |
| Debian 14 | rpm | no fix |
| Red Hat hummingbird 1 | python3-rpm | 0:6.1.0-1.3.hum1 |
| Red Hat hummingbird 1 | rpm | 0:6.1.0-1.3.hum1 |
| Red Hat hummingbird 1 | rpm-apidocs | 0:6.1.0-1.3.hum1 |
| Red Hat hummingbird 1 | rpm-build | 0:6.1.0-1.3.hum1 |
| Red Hat hummingbird 1 | rpm-build-libs | 0:6.1.0-1.3.hum1 |
| Red Hat hummingbird 1 | rpm-cron | 0:6.1.0-1.3.hum1 |
| Red Hat hummingbird 1 | rpm-devel | 0:6.1.0-1.3.hum1 |
| Red Hat hummingbird 1 | rpm-libs | 0:6.1.0-1.3.hum1 |
| Red Hat hummingbird 1 | rpm-plugin-audit | 0:6.1.0-1.3.hum1 |
| Red Hat hummingbird 1 | rpm-plugin-dbus-announce | 0:6.1.0-1.3.hum1 |
| Red Hat hummingbird 1 | rpm-plugin-fapolicyd | 0:6.1.0-1.3.hum1 |
| Red Hat hummingbird 1 | rpm-plugin-fsverity | 0:6.1.0-1.3.hum1 |
| Red Hat hummingbird 1 | rpm-plugin-ima | 0:6.1.0-1.3.hum1 |
| Red Hat hummingbird 1 | rpm-plugin-prioreset | 0:6.1.0-1.3.hum1 |
| Red Hat hummingbird 1 | rpm-plugin-selinux | 0:6.1.0-1.3.hum1 |
| Red Hat hummingbird 1 | rpm-plugin-syslog | 0:6.1.0-1.3.hum1 |
| Red Hat hummingbird 1 | rpm-plugin-systemd-inhibit | 0:6.1.0-1.3.hum1 |
| Red Hat hummingbird 1 | rpm-plugin-unshare | 0:6.1.0-1.3.hum1 |
| Red Hat hummingbird 1 | rpm-sign | 0:6.1.0-1.3.hum1 |
| Red Hat hummingbird 1 | rpm-sign-libs | 0:6.1.0-1.3.hum1 |
| Ubuntu 22.04 LTS | rpm | no fix |
| Ubuntu 24.04 LTS | rpm | no fix |
| Ubuntu 26.04 LTS | rpm | no fix |
| Ubuntu 26.10 | rpm | no fix |
| Ubuntu Pro 14.04 LTS | rpm | no fix |
| Ubuntu Pro 16.04 LTS | rpm | no fix |
| Ubuntu Pro 18.04 LTS | rpm | no fix |
| Ubuntu Pro 20.04 LTS | rpm | no fix |