# CVE-2026-97149: OpenStack Swift tempurl information disclosure via X-Copy-From

Source: https://junglewise.ai/threats/cve-2026-97149-in-openstack-swift-before-2-38-2-the-tempurl-middleware-does-not  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-24. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-97149 · Severity: info · Published 2026-09-24

OpenStack Swift is object storage software used by cloud providers to store and retrieve data. An attacker holding a signed time-limited URL (TempURL) for uploading a single file can modify the request to copy any other file in the same cloud account to that location, then read it back—allowing theft of data they should not be able to access. The vulnerability only affects deployments using the default proxy configuration with account-level TempURLs.

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

## Quick answers

**Is CVE-2026-97149 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-97149 being exploited in the wild.

**How severe is CVE-2026-97149?** Informational severity, published 24 September 2026.

**Which products and versions are affected?** OpenStack Swift >=1.4.6 <2.35.5, >=2.36.0 <2.36.4, >=2.37.0 <2.37.4, >=2.38.0 <2.38.2.

**Is there a fix for CVE-2026-97149?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-97149 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-97149?** Check whether you run OpenStack Swift 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

The tempurl middleware validates a signed request based on HTTP method, expiry time, and path, but does not validate or reject the X-Copy-From header on PUT requests. The copy middleware honors this header, allowing an attacker with a PUT TempURL to inject X-Copy-From to copy arbitrary objects within the same account. The vulnerability exists because X-Copy-From was not added to the DISALLOWED_INCOMING_HEADERS list in tempurl.py. Exploitation requires knowledge of target object paths but no additional authentication, affecting Swift versions 1.4.6 through 2.38.1.

## Affected products

- OpenStack Swift >=1.4.6 <2.35.5, >=2.36.0 <2.36.4, >=2.37.0 <2.37.4, >=2.38.0 <2.38.2

## Timeline

- 2026-09-24: disclosed: OSSA-2026-041 advisory published

## References

- [https://launchpad.net/bugs/2166876](https://launchpad.net/bugs/2166876)
- [http://www.openwall.com/lists/oss-security/2026/09/24/5](http://www.openwall.com/lists/oss-security/2026/09/24/5)

## Related threats

- [PYSEC-2026-927 - OpenStack Swift XML external entities (XXE) Injection](https://junglewise.ai/threats/cve-2022-47950-openstack-swift-xxe-injection-in-s3-api)
- [OpenStack Swift SSRF via header injection in proxy-server](https://junglewise.ai/threats/cve-2026-50221-openstack-swift-ssrf-via-header-injection-in-proxy-server)
- [OpenStack Swift infinite loop in s3api middleware via truncated PUT request](https://junglewise.ai/threats/cve-2026-49017-openstack-swift-infinite-loop-in-s3api-middleware-via-truncated)