CVE-2026-95521

HIGH
MEDIUM Priority: 0.06 BB Relevance: 41/100
Published: 2026-09-24 Modified: 2026-11-06 First seen: 2026-11-01 Status: active

Attack Surface

Low Complexity No Auth Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: None
UI: Required
S: Unchanged
C: High
I: High
A: High

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.

References & Advisories (2)

https://bugzilla.redhat.com/show_bug.cgi?id=2537812
issue-tracking x_refsource_REDHAT

Bug Bounty Relevance

41 / 100
✓ No authentication
✓ Low complexity

CVSS Score

7.8 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.73%
Raw Score 0.007330
Percentile 54.9%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00733
2026-11-12
0.00582
2026-11-10
0.00582
2026-11-09
0.00582
2026-11-08
0.00582
2026-11-07
0.00582
2026-11-06
0.00582
2026-11-05
0.00582
2026-11-04
0.00582
2026-11-03
0.00582
2026-11-02
0.00582
2026-11-01
0.00582
2026-10-31
0.00582

Intelligence Sources

mitre ref →
nvd ref →