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VulnerabilityPublished Updated

CVE-2026-95521: Red Hat Enterprise Linux 10 · OS Command Injection

Affects Red Hat Enterprise Linux 10Source CVE Database V5

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Not known to be exploited · CVSS 7.8 High.

Data as of 8 Nov 2026, 12:57 UTC

CVSS 3.1 base score
7.8High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (redhat)CVSS 3.17.8
EPSS
0.5% chance of exploitation in 30 days – higher than 48% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 24 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 8 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Red Hat Enterprise Linux 10rpmAffected–Fixed in–
Red Hat Enterprise Linux 6rpmAffected–Fixed in–
Red Hat Enterprise Linux 7rpmAffected–Fixed in–
Red Hat Enterprise Linux 8rpmAffected–Fixed in–
Red Hat Enterprise Linux 9rpmAffected–Fixed in–
Red Hat Hardened ImagesrpmAffected–Fixed in–

AI-suggested

Red Hat recommends avoiding the installation or rebuilding of source RPMs from untrusted or unverified sources. Users should ensure only trusted source RPMs are processed to mitigate this vulnerability.

Description

CVE-2026-95521 is a command injection vulnerability in the rpm tool on Red Hat Enterprise Linux 10. It occurs when installing or rebuilding a source RPM with source or spec file basenames containing a %() macro, causing rpm to execute attacker-controlled shell commands via popen(). This allows arbitrary command execution as the invoking user, typically non-root, when processing untrusted source RPMs. Exploitation requires local user interaction to install or rebuild the malicious source RPM. The vulnerability is not exposed as a network service.

References

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