CVE-2026-84837

Rpm: command injection in `rpmbuild -t*` (`gettarspec`) via unescaped tarball path

HIGH
7.8
CVSS Score
Published: September 2, 2026 at 03:12 PM UTC
Updated: October 14, 2026 at 03:17 AM UTC
2 products affected across 1 vendorEnterprise LinuxHardened Images

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Severity
HIGH7.8
Exploit prediction
EPSS 0.7%
SSVC
No known exploit

Description

A flaw was found in rpm. An attacker can exploit a command injection vulnerability by influencing the path or filename of a tarball processed by `rpmbuild -t*` to include shell metacharacters. This is particularly relevant in automated build or continuous integration (CI) workflows that ingest externally supplied artifact names. Successful exploitation allows for arbitrary command execution with the privileges of the build user, which could lead to information disclosure or disruption of the build environment.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions10
Vendor states this is fixed in 6 (unknown)
All versions1
Vendor states this is fixed in 6.1.0-1.3.hum1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

VDB Entryx_refsource_REDHAT
Source: cverecord
https://access.redhat.com/security/cve/CVE-2026-84837
Issue Trackingx_refsource_REDHAT
Source: cverecord
https://bugzilla.redhat.com/show_bug.cgi?id=2478408
Vendor Advisoryx_refsource_REDHAT
Source: cverecord
https://access.redhat.com/errata/RHSA-2026:82378

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHredhat
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-78

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