---
id: CVE-2015-3156
aliases:
  - GHSA-98c8-36p9-gw66
  - PYSEC-2026-1053
title: 'Openstack DBaaS (Trove) Improper Link Resolution Before File Access '
summary: 'Openstack DBaaS (Trove) Improper Link Resolution Before File Access '
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N'
vendor: trove
product: trove
ecosystem: pip
affected:
  - trove < 4.0.0a0
patched:
  - trove 4.0.0a0
published: '2022-05-17'
updated: '2026-07-07'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-98c8-36p9-gw66'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2015-3156'
  - url: >-
      https://github.com/openstack/trove/commit/61774984aa2bacfe89867fc39a402a6a4cfb8f33
  - url: 'https://bugs.launchpad.net/trove/+bug/1398195'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=1216073'
  - url: 'https://github.com/openstack/trove'
  - url: >-
      https://github.com/openstack/trove/blob/master/trove/guestagent/datastore/experimental/cassandra/service.py#L230
  - url: >-
      https://github.com/openstack/trove/blob/master/trove/guestagent/datastore/experimental/mongodb/service.py#L176
  - url: >-
      https://github.com/openstack/trove/blob/master/trove/guestagent/datastore/experimental/redis/service.py#L236
  - url: >-
      https://github.com/openstack/trove/blob/master/trove/guestagent/datastore/mysql/service.py#L790
  - url: >-
      https://github.com/openstack/trove/blob/master/trove/guestagent/strategies/backup/experimental/couchbase_impl.py#L30
  - url: >-
      https://github.com/openstack/trove/blob/master/trove/guestagent/strategies/backup/mysql_impl.py#L110
  - url: >-
      https://github.com/openstack/trove/blob/master/trove/guestagent/strategies/backup/mysql_impl.py#L36
  - url: >-
      https://github.com/openstack/trove/blob/master/trove/guestagent/strategies/backup/mysql_impl.py#L55
  - url: >-
      https://github.com/openstack/trove/blob/master/trove/guestagent/strategies/restore/mysql_impl.py#L194
tags:
  - osv
  - pip
epss: 0.00449
epssPercentile: 0.38248
ingestedAt: '2026-07-08T18:25:47.795Z'
---

## Overview

The `_write_config` function in `trove/guestagent/datastore/experimental/mongodb/service.py`, `reset_configuration` function in `trove/guestagent/datastore/experimental/postgresql/service/config.py`, `write_config` function in `trove/guestagent/datastore/experimental/redis/service.py`, `_write_mycnf` function in `trove/guestagent/datastore/mysql/service.py`, `InnoBackupEx::_run_prepare` function in `trove/guestagent/strategies/restore/mysql_impl.py`, `InnoBackupEx::cmd` function in `trove/guestagent/strategies/backup/mysql_impl.py`,`MySQLDump::cmd` in `trove/guestagent/strategies/backup/mysql_impl.py`, `InnoBackupExIncremental::cmd` function in `trove/guestagent/strategies/backup/mysql_impl.py`, `_get_actual_db_status` function in `trove/guestagent/datastore/experimental/cassandra/system.py` and `trove/guestagent/datastore/experimental/cassandra/service.py`, and multiple class CbBackup methods in `trove/guestagent/strategies/backup/experimental/couchbase_impl.py` in Openstack DBaaS (aka Trove) as packaged in Openstack before 2015.1.0 (aka Kilo) allows local users to write to configuration files via a symlink attack on a temporary file.

## Affected packages

- `trove < 4.0.0a0`

## Remediation

Upgrade to a patched release:

- `trove 4.0.0a0`