CVE-2023-31131Network attack vector

Arbitrary file write via unchecked tar paths

Published May 15, 2023 · Updated Jan 22, 2025

Path traversal in Greenplum Database before 6.22.3 allows attackers to write arbitrary files through a crafted GPPKG archive. The GPPKG extraction path in gpMgmt/bin/gppylib/operations/package.py passed every tar member directly to tarfile.extractall without verifying that its resolved path remained under the temporary extraction directory. Exploitation requires processing a malicious package, and writes are limited to files accessible to the Greenplum process, allowing data or system files to be overwritten and the service to crash or malfunction.

CVSS severity7.4
High
EPSS probability0.75%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Greenplum Database before 6.22.3 allows attackers to write arbitrary files through a crafted GPPKG archive. The GPPKG extraction path in gpMgmt/bin/gppylib/operations/package.py passed every tar member directly to tarfile.extractall without verifying that its resolved path remained under the temporary extraction directory. Exploitation requires processing a malicious package, and writes are limited to files accessible to the Greenplum process, allowing data or system files to be overwritten and the service to crash or malfunction.

The record

CVE
CVE-2023-31131
Published
May 15, 2023
Updated
Jan 22, 2025
Vendor
Greenplum
Product
Greenplum Database
Classifications
CWE-22
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 15, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 22, 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=< 6.22.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Greenplum · Greenplum Databaseversion=< 6.22.3

Published CVSS scores

9.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
7.4GitHub CNACVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H

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-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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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