CVE catalog

CVE-2026-84838

Severity: High · CVSS 7.8CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: Sep 2, 2026, 1:35:12 PM UTC
Updated: Sep 2, 2026, 4:17:33 PM UTC
Source: [NVD] · [CVE record]
EPSS: 1.10% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	rpm	sid	`6.1.0-1`	vulnerable
Debian	rpm	forky	`6.1.0-1`	vulnerable
Debian	rpm	trixie	`4.20.1+dfsg-3`	vulnerable
Debian	rpm	bookworm	`4.18.0+dfsg-1+deb12u1`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	rpm	source	sid	`(unfixed)`	not yet assigned	Not reported	[1146602]
Debian	rpm	source	forky	`(unfixed)`	not yet assigned	Not reported	[1146602]
Debian	rpm	source	trixie	`(unfixed)`	not yet assigned	Not reported	[1146602]
Debian	rpm	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1146602]

[Debian bug #1146602]

Notes

[trixie] rpm: Minor issue [bookworm] rpm: Minor issue

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[librpm9]Affected
Source package: [rpm]
Details (2)
- 4.18.0+dfsg-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · rpm · debian · bookworm
- 4.18.0+dfsg-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · rpm · debian · bookworm
[librpmbuild9]Affected
Source package: [rpm]
Details (2)
- 4.18.0+dfsg-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · rpm · debian · bookworm
- 4.18.0+dfsg-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · rpm · debian · bookworm
[librpm-dev]Affected
Source package: [rpm]
Details (2)
- 4.18.0+dfsg-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · rpm · debian · bookworm
- 4.18.0+dfsg-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · rpm · debian · bookworm
[librpmio9]Affected
Source package: [rpm]
Details (2)
- 4.18.0+dfsg-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · rpm · debian · bookworm
- 4.18.0+dfsg-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · rpm · debian · bookworm
[librpmsign9]Affected
Source package: [rpm]
Details (2)
- 4.18.0+dfsg-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · rpm · debian · bookworm
- 4.18.0+dfsg-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · rpm · debian · bookworm
[python3-rpm]Affected
Source package: [rpm]
Details (2)
- 4.18.0+dfsg-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · rpm · debian · bookworm
- 4.18.0+dfsg-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · rpm · debian · bookworm
[rpm]Affected
Details (2)
- 4.18.0+dfsg-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · rpm · debian · bookworm
- 4.18.0+dfsg-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · rpm · debian · bookworm
[rpm2cpio]Affected
Source package: [rpm]
Details (2)
- 4.18.0+dfsg-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · rpm · debian · bookworm
- 4.18.0+dfsg-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · rpm · debian · bookworm
[rpm-common]Affected
Source package: [rpm]
Details (2)
- 4.18.0+dfsg-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · rpm · debian · bookworm
- 4.18.0+dfsg-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · rpm · debian · bookworm
[rpm-i18n]Affected
Source package: [rpm]
Details (2)
- 4.18.0+dfsg-1+deb12u1 · all · bookworm
  Affected
  nvd · rpm · debian · bookworm
- 4.18.0+dfsg-1+deb12u1 · all · bookworm
  Affected
  nvd · rpm · debian · bookworm

Observed: Oct 23, 2026, 9:33:22 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]