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.
Affected products
openstack: glance
References8
- security.openstack.org/ossa/OSSA-2026-004.html PatchVendor Advisory
- bugs.launchpad.net/glance/+bug/2138602 ExploitIssue TrackingThird Party Advisory
- bugs.launchpad.net/glance/+bug/2138602 ExploitIssue TrackingThird Party Advisory
- access.redhat.com/errata/RHSA-2026:39812
- access.redhat.com/errata/RHSA-2026:54757
- access.redhat.com/security/cve/CVE-2026-34881
- bugzilla.redhat.com/show_bug.cgi?id=2440368
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34881…
Metrics
- CVSS 3.1
-
5.0
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N - EPSS — exploit probability
- 0% percentile: 20 · as of 12 November 2026
- CWE
- CWE-918
Could this be exploited in your environment?
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