CVE-2015-5190: The pcsd web UI in PCS 0.9.139 and earlier allows remote authenticated users to execute arbitrary commands via

Q: How do I fix CVE-2015-5190?

pacemaker\/corosync configuration system: upgrade to newer than 0.9.139. Exact commands for each OS are on this page.

Q: Is CVE-2015-5190 being exploited?

CVE-2015-5190 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2015-5190 affect?

CVE-2015-5190 affects pacemaker\/corosync configuration system. Severity is high (CVSS 8.5). The pcsd web UI in PCS 0.9.139 and earlier allows remote authenticated users to execute arbitrary commands via "escape characters" in a URL.

This month

HIGH 8.5UPGRADE

CVE-2015-5190 is a high-severity flaw (CVSS 8.5) affecting pacemaker\/corosync configuration system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The pcsd web UI in PCS 0.9.139 and earlier allows remote authenticated users to execute arbitrary commands via "escape characters" in a URL.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.5 (High)
EPSS exploit chance	2.5% (top 15%)
CISA exploited list	No
Weakness	CWE-77
Published	2015-09-03
Last modified	2026-06-17

Publisher (CNA): Red Hat, Inc. · Vendor: pacemaker\/corosync configuration system project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2015-09-03 14:59 UTCPublished CVE record published
2026-06-17 00:28 UTCUpdated Record last modified

pacemaker\/corosync configuration system project pacemaker\/corosync configuration system UPGRADE

Affected: <= 0.9.139

Fixed in: newer than 0.9.139

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy pacemakercorosync-configuration-system || rpm -q pacemakercorosync-configuration-system || pacemakercorosync-configuration-system --version

2. UPGRADE to newer than 0.9.139 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade pacemakercorosync-configuration-system

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade pacemakercorosync-configuration-system

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2015-5190?

pacemaker\/corosync configuration system: upgrade to newer than 0.9.139. Exact commands for each OS are on this page.

Is CVE-2015-5190 being exploited?

CVE-2015-5190 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2015-5190 affect?

CVE-2015-5190 affects pacemaker\/corosync configuration system. Severity is high (CVSS 8.5). The pcsd web UI in PCS 0.9.139 and earlier allows remote authenticated users to execute arbitrary commands via "escape characters" in a URL.

How urgent is CVE-2015-5190?

Priority 51/100. High severity

Related CVEs

CVE-2015-5189 MEDIUM 4.9 UPGRADE Race condition in pcsd in PCS 0.9.139 and earlier uses a global variable to validate usernames, which allows r

References

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