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    CVE-2026-71197

    A flaw was found in OpenStack Glance. The web-download image import method can bypass host-based blocklist filtering. When an operator configures disallowed_hosts with IP addresses to block access to internal services, an attacker can circumvent this protection by using a hostname that resolves to the blocked IP address. The hostname-to-IP resolution result is not used for blocklist comparison, allowing an authenticated user to force the Glance server to make requests to internal network services that were intended to be blocked.

    Published:Sep 4, 2026
    Last Modified:Sep 4, 2026
    EPS:N/A
    EPSS Score:
    CVSS Score:4.3

    Affected Products

    Vendor
    Openstack
    Product
    Glance

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-664 Server Side Request Forgery

    Related CVEs

    CVE-2026-71198 (CVSS 7.7) — A server-side request forgery (SSRF) vulnerability was found in OpenStack Glance. When the HTTP store backend …
    CVE-2026-71196 (CVSS 7.7) — A server-side request forgery (SSRF) vulnerability was found in OpenStack Glance. The web-download image impor…
    CVE-2026-77648 (CVSS 2.2) — In OpenStack Glance through 32.0.0, the /v2/tasks API accepts type=import tasks that bypass import_filtering_o…
    CVE-2026-34881 (CVSS 5) — OpenStack Glance before 29.1.1, 30.x before 30.1.1, and 31.0.0 is affected by Server-Side Request Forgery (SSR…
    CVE-2024-32498 (CVSS 6.5) — An issue was discovered in OpenStack Cinder through 24.0.0, Glance before 28.0.2, and Nova before 29.0.3. Arbi…
    CVE-2022-47951 (CVSS 5.7) — An issue was discovered in OpenStack Cinder before 19.1.2, 20.x before 20.0.2, and 21.0.0; Glance before 23.0.…
    CVE-2022-4134 (CVSS 2.8) — A flaw was found in openstack-glance. This issue could allow a remote, authenticated attacker to tamper with i…
    CVE-2017-7200 (CVSS 5.8) — An SSRF issue was discovered in OpenStack Glance before Newton. The 'copy_from' feature in the Image Service A…
    CVE-2016-8611 (CVSS 4.3) — A vulnerability was found in Openstack Glance. No limits are enforced within the Glance image service for both…
    CVE-2015-8234 (CVSS 5.5) — The image signature algorithm in OpenStack Glance 11.0.0 allows remote attackers to bypass the signature verif…

    References

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High