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Vulnerability record · CVE-2026-34881 · published 31 March 2026

CVE-2026-34881: Openstack glance server-side request forgery (ssrf) vulnerability

Openstack · Glance

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.

5.0 CVSS 3.1 Medium EPSS 0.44% · top 64.4% CWE-918 · Server-side request forgery (SSRF)
5.0CVSS 3.1 base score
0.44%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References, 2 tagged exploit
14 Aug 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://bugs.launchpad.net/glance/+bug/2138602 ExploitIssue TrackingThird Party Advisory
https://security.openstack.org/ossa/OSSA-2026-004.html PatchVendor Advisory
https://access.redhat.com/errata/RHSA-2026:39812
https://access.redhat.com/errata/RHSA-2026:54757
https://access.redhat.com/security/cve/CVE-2026-34881
https://bugs.launchpad.net/glance/+bug/2138602 ExploitIssue TrackingThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2440368
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34881.json

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.5CVE-2015-5162Openstack cinder vulnerabilityThe image parser in OpenStack Cinder 7.0.2 and 8.0.0 through 8.1.1; Glance before 11.0.1 and 12.0.0; and Nova before 12.0.4 and 13.0.0 does not prope…EPSS 3.1%6.5CVE-2024-32498Openstack cinder vulnerabilityAn issue was discovered in OpenStack Cinder through 24.0.0, Glance before 28.0.2, and Nova before 29.0.3. Arbitrary file access can occur via custom …EPSS 0.84%6.5CVE-2016-8611Openstack glance uncontrolled resource consumption vulnerabilityA vulnerability was found in Openstack Glance. No limits are enforced within the Glance image service for both v1 and v2 `/images` API POST method fo…EPSS 2.3%5.8CVE-2017-7200Openstack glance server-side request forgery (ssrf) vulnerabilityAn SSRF issue was discovered in OpenStack Glance before Newton. The 'copy_from' feature in the Image Service API v1 allowed an attacker to perform ma…EPSS 2.1%5.7CVE-2022-47951Openstack cinder path traversal vulnerabilityAn issue was discovered in OpenStack Cinder before 19.1.2, 20.x before 20.0.2, and 21.0.0; Glance before 23.0.1, 24.x before 24.1.1, and 25.0.0; and …EPSS 1.0%5.5CVE-2015-8234Openstack glance vulnerabilityThe image signature algorithm in OpenStack Glance 11.0.0 allows remote attackers to bypass the signature verification process via a crafted image, wh…EPSS 1.2%4.0CVE-2015-3289Openstack glance vulnerabilityOpenStack Glance before 2015.1.1 (kilo) allows remote authenticated users to cause a denial of service (disk consumption) by repeatedly using the imp…EPSS 1.3%3.5CVE-2015-5163Openstack glance information exposure vulnerabilityThe import task action in OpenStack Image Service (Glance) 2015.1.x before 2015.1.2 (kilo), when using the V2 API, allows remote authenticated users …EPSS 1.5%

Source: NIST National Vulnerability Database (record CVE-2026-34881), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.