Is there a public exploit for CVE-2026-84838?

No public exploit for CVE-2026-84838 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-84838?

CVE-2026-84838 scores CVSS 7.8 (v3.1), rated high. EPSS puts the chance of exploitation in the next 30 days at 1.11%.

What does CVE-2026-84838 affect?

CVE-2026-84838 affects Red Hat Red Hat Hardened Images.

7.8 High

A flaw was found in rpmuncompress.

CVE-2026-84838

A flaw was found in rpmuncompress. This command injection vulnerability allows a local attacker to execute arbitrary commands. This occurs when rpmuncompress processes a specially crafted archive filename containing shell metacharacters, which are not properly escaped before being passed to shell command strings. Successful exploitation requires user interaction, where a user or automated workflow invokes rpmuncompress on the malicious file, leading to high impact on the confidentiality, integrity, and availability of data accessible to the invoking user.

Assessment

CVSS: 7.8 (v3.1)
Severity: High
EPSS: 1.11% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 2 September 2026
Last updated: 3 November 2026
Affected: Red Hat · Red Hat Hardened Images
Assigner: redhat

CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

At the source

EUVD (ENISA)

References

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