CVE-2026-34881

Publication date 31 March 2026

Last updated 23 April 2026

Ubuntu priority

Cvss 3 Severity Score

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.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
glance	25.10 questing	Not affected
	24.04 LTS noble	Not affected
	22.04 LTS jammy	Not affected
	20.04 LTS focal	Fixed 2:20.2.0-0ubuntu1.2+esm2
	18.04 LTS bionic	Fixed 2:16.0.1-0ubuntu1.1+esm2
	16.04 LTS xenial	Not affected

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Notes

kkernick

Many of the test cases fail on Bionic down (i.e. Python 2) because the ipaddress module requires unicode strings, and Python 2 ASCII.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
glance	Upstream: 76b1f02 Upstream: bb0d59f Upstream: fdfb958 Upstream: 07dd0a2 Upstream: 8c43caa

Severity score breakdown

Parameter	Value
Base score	5.0 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Changed
Confidentiality	None
Integrity impact	Low
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N

References

Related Ubuntu Security Notices (USN)

USN-8199-1
OpenStack Glance vulnerabilities
22 April 2026