Symlink Following The advisory has been revoked - it doesn't affect any version of package prometheus-node-exporter  (opens in a new tab)


Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.52% (42nd percentile)

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  • Snyk IDSNYK-WOLFILATEST-PROMETHEUSNODEEXPORTER-15410410
  • published5 Mar 2026
  • disclosed6 Nov 2025

Introduced: 6 Nov 2025

CVE-2025-52881  (opens in a new tab)
CWE-61  (opens in a new tab)
CWE-363  (opens in a new tab)

Amendment

The Wolfi security team deemed this advisory irrelevant for Wolfi:latest.

NVD Description

Note: Versions mentioned in the description apply only to the upstream prometheus-node-exporter package and not the prometheus-node-exporter package as distributed by Wolfi.

runc is a CLI tool for spawning and running containers according to the OCI specification. In versions 1.2.7, 1.3.2 and 1.4.0-rc.2, an attacker can trick runc into misdirecting writes to /proc to other procfs files through the use of a racing container with shared mounts (we have also verified this attack is possible to exploit using a standard Dockerfile with docker buildx build as that also permits triggering parallel execution of containers with custom shared mounts configured). This redirect could be through symbolic links in a tmpfs or theoretically other methods such as regular bind-mounts. While similar, the mitigation applied for the related CVE, CVE-2019-19921, was fairly limited and effectively only caused runc to verify that when LSM labels are written they are actually procfs files. This issue is fixed in versions 1.2.8, 1.3.3, and 1.4.0-rc.3.

References