CVE-2023-0778Network attack vector

Host file disclosure via raced export symlink

Published Mar 27, 2023 · Updated Feb 24, 2025

TOCTOU in Podman before 4.4.2 allows remote authenticated users to read arbitrary host files during volume export. The volume-export path created a tar archive without chrooting to the volume, so a raced symlink could resolve outside the export source. Exploitation requires control of a container attached to the volume and an administrator or platform action that exports it, exposing the referenced host file through the resulting tarball.

CVSS severity6.8
Medium
EPSS probability0.54%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

TOCTOU in Podman before 4.4.2 allows remote authenticated users to read arbitrary host files during volume export. The volume-export path created a tar archive without chrooting to the volume, so a raced symlink could resolve outside the export source. Exploitation requires control of a container attached to the volume and an administrator or platform action that exports it, exposing the referenced host file through the resulting tarball.

The record

CVE
CVE-2023-0778
Published
Mar 27, 2023
Updated
Feb 24, 2025
Vendor
389 Directory Server
Product
Podman
Classifications
CWE-367, T1611, T1005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 27, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 24, 2025Record 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=unknown

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

389 Directory Server · Podmanversion=unknown

Published CVSS scores

6.8GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-367Time-of-check Time-of-use (TOCTOU) Race Condition
T1611Escape to Host
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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