Openstack tripleo-heat-templates unauthenticated file access

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

6.3 · CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

EPSS

• CVE-2017-12155: 0.29% estimated exploitation activity in the next 30 days; percentile 21.30 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

A resource-permission flaw was found in the tripleo-heat-templates package where ceph.client.openstack.keyring is created as world-readable. A local attacker with access to the key could read or modify data on Ceph cluster pools for OpenStack as though the attacker were the OpenStack service, thus potentially reading or modifying data in an OpenStack Block Storage volume. This has been patched in versions 7.0.6 and 8.0.0.

Published by the source

13 May 2022, 01:42 UTC

Last modified by the source

10 Sep 2026, 03:49 UTC

Source last checked

26 Oct 2026, 13:12 UTC

1. Revision 2 · amended · 26 Oct 2026

   Amended from ghsa record GHSA-w8gx-hhcx-px6w

2. Revision 1 · created · 24 Oct 2026

   Published from osv record GHSA-w8gx-hhcx-px6w

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# Patch Next advisory brief: CVE-2017-12155

Advisory: Openstack tripleo-heat-templates unauthenticated file access
IDs: CVE-2017-12155, GHSA-w8gx-hhcx-px6w
Record: https://patchnext.com/advisories/cve-2017-12155 (revision 2, source checked 26 Oct 2026, 13:12 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 6.3)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: tripleo-heat-templates 7.0.6. A vendor fix does not mean a deployment is fixed.

## Affected components
- PyPI tripleo-heat-templates: affected < 7.0.6; fixed in 7.0.6

## Suggested inspection (read-only)
- `python -m pip show tripleo-heat-templates`: prints the installed version. Run with the environment that serves production active.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on tripleo-heat-templates.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-w8gx-hhcx-px6w (OSV record GHSA-w8gx-hhcx-px6w lists affected ranges: PyPI tripleo-heat-templates >=0 <7.0.6 (fixed))
- Verified: https://github.com/advisories/GHSA-w8gx-hhcx-px6w (GitHub-reviewed advisory GHSA-w8gx-hhcx-px6w lists affected ranges: PyPI tripleo-heat-templates >=0 <7.0.6)

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