CVE-2020-1726Network attack vector

File overwrite via unchecked volume copy-up

Published Feb 11, 2020 · Updated Aug 4, 2024

Improper volume handling in Podman 1.6.0 through 1.8.0 allows attackers to overwrite files when a container first uses a volume. In libpod/container_internal.go, mountNamedVolume copies image content into a named volume without checking whether the volume already contains data, including on read-only mounts. Running a malicious container or image against a previously unused Podman volume is required, and existing volume files can be replaced.

CVSS severity5.9
Medium
EPSS probability1.85%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper volume handling in Podman 1.6.0 through 1.8.0 allows attackers to overwrite files when a container first uses a volume. In libpod/container_internal.go, mountNamedVolume copies image content into a named volume without checking whether the volume already contains data, including on read-only mounts. Running a malicious container or image against a previously unused Podman volume is required, and existing volume files can be replaced.

The record

CVE
CVE-2020-1726
Published
Feb 11, 2020
Updated
Aug 4, 2024
Vendor
Podman Container Tools
Product
Podman
Classifications
CWE-552, T1204.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 11, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=from 1.6.0 onwards

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Podman Container Tools · Podmanversion=from 1.6.0 onwards

Published CVSS scores

5.9Red Hat, Inc.CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
5.8NIST NVDAV:N/AC:M/Au:N/C:N/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-552Files or Directories Accessible to External Parties
T1204.003User Execution: Malicious Image

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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