Missing Authentication for Critical Function Affecting pcp package, versions *


Severity

Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
0.4% (33rd percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-PCP-18453896
  • published30 Jul 2026
  • disclosed30 Jul 2026

Introduced: 30 Jul 2026

NewCVE-2026-16527  (opens in a new tab)
CWE-306  (opens in a new tab)

How to fix?

There is no fixed version for Debian:unstable pcp.

NVD Description

Note: Versions mentioned in the description apply only to the upstream pcp package and not the pcp package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

An unauthenticated remote attacker can bypass access controls by sending crafted requests to the PCP pmproxy /store endpoint. This allows the attacker to overwrite any PMDA metric, leading to arbitrary code execution and system takeover.

CVSS Base Scores

version 3.1