CVE-2026-95521

Rpm: rpm: shell command injection via macro expansion of source/spec file basenames when installing a source rpm

Published: Sep 24, 2026Updated: Sep 24, 2026 Sources: CVE List NVDCWE-78

7.8HIGH

Description

A command injection flaw was found in rpm. Installing or rebuilding a source RPM whose source or spec file basenames contain a %() macro construct causes rpm to execute an attacker-controlled shell command via popen() while relocating the source file list. This allows arbitrary command execution as the invoking (typically non-root) user, simply by installing, rebuilding, or otherwise processing an untrusted .src.rpm.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:LAttack Vector

Local

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:RUser Interaction

Required

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:HAvailability

High

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Weaknesses

CWE-78

Affected Products

Red Hat

commercial·US

Red Hat Enterprise Linux 10On-premOS

Operating Systems / linux-distro

Red Hat Hardened ImagesOn-premOS

Operating Systems / linux-distro

and 4 more affected products View all →

Exploitability

Workaround Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique

Execution

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References

https://access.redhat.com/security/cve/CVE-2026-95521

access.redhat.com

https://bugzilla.redhat.com/show_bug.cgi?id=2537812

bugzilla.redhat.com

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