CVE-2026-34881: CWE-918 Server-Side Request Forgery (SSRF) in OpenStack Glance
A security update has been issued for Red Hat OpenStack Services on OpenShift 18.0 (openstack-glance) addressing multiple Server-Side Request Forgery (SSRF) vulnerabilities. These vulnerabilities include unvalidated URI fetch in OVF processing, redirect validation bypass in glance-download import, and an SSRF leading to unauthorized internal network access (CVE-2026-34881). The update fixes these issues to prevent potential unauthorized access to internal networks via the OpenStack Image Service API.
AI Analysis
Technical Summary
Red Hat OpenStack Services on OpenShift 18.0 (openstack-glance) contained multiple SSRF vulnerabilities. These include unvalidated URI fetch during OVF processing and redirect validation bypass in the glance-download import functionality, culminating in CVE-2026-34881, which allows server-side request forgery that could lead to unauthorized access to internal network resources. The OpenStack Image Service API, which manages virtual disk images, is affected. Red Hat has released a security update to address these issues.
Potential Impact
The vulnerabilities allow an attacker to perform server-side request forgery attacks through the OpenStack Glance service, potentially enabling unauthorized access to internal network resources. This could lead to information disclosure or further network exploitation if an attacker can leverage the SSRF to reach otherwise inaccessible internal services. The severity is rated as high by Red Hat Product Security.
Mitigation Recommendations
Red Hat has released an official security update for openstack-glance in Red Hat OpenStack Services on OpenShift 18.0. Users should apply the update as detailed in the Red Hat advisory (RHSA-2026:39812) to remediate the SSRF vulnerabilities. Refer to https://access.redhat.com/articles/11258 for update instructions. No alternative mitigations are indicated; applying the vendor-provided patch is required.
CVE-2026-34881: CWE-918 Server-Side Request Forgery (SSRF) in OpenStack Glance
Description
A security update has been issued for Red Hat OpenStack Services on OpenShift 18.0 (openstack-glance) addressing multiple Server-Side Request Forgery (SSRF) vulnerabilities. These vulnerabilities include unvalidated URI fetch in OVF processing, redirect validation bypass in glance-download import, and an SSRF leading to unauthorized internal network access (CVE-2026-34881). The update fixes these issues to prevent potential unauthorized access to internal networks via the OpenStack Image Service API.
CVSS v3.1
Score 5.0medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Red Hat OpenStack Services on OpenShift 18.0 (openstack-glance) contained multiple SSRF vulnerabilities. These include unvalidated URI fetch during OVF processing and redirect validation bypass in the glance-download import functionality, culminating in CVE-2026-34881, which allows server-side request forgery that could lead to unauthorized access to internal network resources. The OpenStack Image Service API, which manages virtual disk images, is affected. Red Hat has released a security update to address these issues.
Potential Impact
The vulnerabilities allow an attacker to perform server-side request forgery attacks through the OpenStack Glance service, potentially enabling unauthorized access to internal network resources. This could lead to information disclosure or further network exploitation if an attacker can leverage the SSRF to reach otherwise inaccessible internal services. The severity is rated as high by Red Hat Product Security.
Mitigation Recommendations
Red Hat has released an official security update for openstack-glance in Red Hat OpenStack Services on OpenShift 18.0. Users should apply the update as detailed in the Red Hat advisory (RHSA-2026:39812) to remediate the SSRF vulnerabilities. Refer to https://access.redhat.com/articles/11258 for update instructions. No alternative mitigations are indicated; applying the vendor-provided patch is required.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:39812
- Cve Count
- 1
Threat ID: 6a7f440cbf8831d5395fb803
Added to database: 08/14/2026, 16:36:28 UTC
Last enriched: 08/14/2026, 16:59:42 UTC
Last updated: 09/10/2026, 19:36:53 UTC
Views: 17
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