# CVE-2026-44916: OpenStack Ironic remote code execution in Anaconda deploy interface

Source: https://junglewise.ai/threats/cve-2026-44916-openstack-ironic-remote-code-execution-in-anaconda-deploy  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-08. Updated: 2026-05-20  
License: CC BY 4.0 with a link back

CVE-2026-44916 · Severity: low · CVSS 3 · Published 2026-05-08

OpenStack Ironic, a service for managing bare metal hardware, contains a vulnerability in its Anaconda deployment interface. In specific non-default configurations, an authorized user could execute malicious code on the server managing the hardware. This could lead to a full compromise of the management infrastructure, including access to hardware credentials and the ability to manipulate server provisioning.

Technologies: [OpenStack Ironic](https://junglewise.ai/threats/technologies/ironic). Vendors: [OpenStack](https://junglewise.ai/threats/vendors/openstack).

## Quick answers

**Is CVE-2026-44916 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-44916 being exploited in the wild.

**How severe is CVE-2026-44916?** Low severity, with a CVSS score of 3, published 8 May 2026.

**Which products and versions are affected?** OpenStack Ironic >=17.0.0 <26.1.7, >=27.0.0 <29.0.6, >=30.0.0 <32.0.2, >=33.0.0 <35.0.2.

**Is there a fix for CVE-2026-44916?** A patch was published on 2026-05-11: Security advisory OSSA-2026-012 released with patches Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-44916 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-44916?** Check whether you run OpenStack Ironic at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A Server-Side Template Injection (SSTI) vulnerability exists in OpenStack Ironic's Anaconda deploy interface. The root cause is the use of an unsandboxed jinja2.Environment to render the 'ks_template' provided in instance_info. An attacker with permissions to modify node instance information can provide a URL to a malicious Jinja2 template, leading to remote code execution (RCE) within the ironic-conductor process. This affects deployments where the 'anaconda' interface is enabled in ironic.conf and assigned to nodes. The vulnerability is mitigated by switching to jinja2.sandbox.SandboxedEnvironment.

## Affected products

- OpenStack Ironic >=17.0.0 <26.1.7, >=27.0.0 <29.0.6, >=30.0.0 <32.0.2, >=33.0.0 <35.0.2

## Timeline

- 2026-04-14: disclosed: Bug reported to OpenStack security team
- 2026-05-08: advisory: CVE published
- 2026-05-11: patched: Security advisory OSSA-2026-012 released with patches

## References

- [https://bugs.launchpad.net/ironic/+bug/2148307](https://bugs.launchpad.net/ironic/+bug/2148307)
- [https://security.openstack.org/ossa/OSSA-2026-012.html](https://security.openstack.org/ossa/OSSA-2026-012.html)
- [http://www.openwall.com/lists/oss-security/2026/05/11/7](http://www.openwall.com/lists/oss-security/2026/05/11/7)

## Related threats

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- [OpenStack Ironic authorization bypass in node maintenance setting](https://junglewise.ai/threats/cve-2026-89419-openstack-ironic-before-39-0-1-sometimes-allows-a-user-to-change)
- [OpenStack Ironic denial of service via gzip bomb in configdrive](https://junglewise.ai/threats/cve-2026-115638-openstack-ironic-through-39-0-1-allows-a-denial-of-service-via-a)
- [OpenStack Ironic credential leakage in HTTP Basic Authentication](https://junglewise.ai/threats/cve-2026-90461-openstack-ironic-credential-leakage-in-http-basic-authentication)
- [OpenStack Ironic autodetect deploy interface cleaning bypass](https://junglewise.ai/threats/cve-2026-74250-openstack-ironic-autodetect-deploy-interface-cleaning-bypass)