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Vulnerability · Published Jul 30, 2026 · Assigned by redhat

CVE-2026-16530Pcp: pcp: remote denial of service and information leakage

Medium 6.5

In plain English

A medium-severity out-of-bounds read in Red Hat Enterprise Linux 10 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.5%top 58.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A flaw was found in the PCP (Performance Co-Pilot) `pmproxy` service. A remote attacker can exploit a vulnerability in the `pmLogLoadInDom()` function by sending a specially crafted request. This bypasses a critical bounds check, which can lead to the `pmproxy` service crashing, causing a Denial of Service (DoS). Additionally, this flaw may enable the leakage of sensitive information from the system's memory.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12pcpno fix listedDEBIAN-CVE-2026-16530
Debian:13pcpno fix listedDEBIAN-CVE-2026-16530
Debian:14pcp7.2.1-2DEBIAN-CVE-2026-16530
Ubuntu:22.04:LTSpcpno fix listedUBUNTU-CVE-2026-16530
Ubuntu:24.04:LTSpcpno fix listedUBUNTU-CVE-2026-16530
Ubuntu:26.04:LTSpcpno fix listedUBUNTU-CVE-2026-16530
Ubuntu:26.10pcpno fix listedUBUNTU-CVE-2026-16530

Affected products (as reported)

VendorProductVersions
Red Hat Red Hat Enterprise Linux 10 see references
Red Hat Red Hat Enterprise Linux 6 see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat OpenShift Container Platform 4 see references
Red Hat Red Hat OpenShift Container Platform 5 see references

Weakness: CWE-125 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

References