Severity by source
Authenticated tenant-level access required (PR:L); HTTP store must be enabled but exploitation itself is straightforward (AC:L); full-read SSRF yields high confidentiality impact with scope change to internal infrastructure.
Lifecycle Timeline
2Description PRE-NVD
Articles & Coverage 1
AnalysisAI
Full-read server-side request forgery in OpenStack Glance's HTTP image location API allows authenticated tenant users to exfiltrate arbitrary internal network resources, including cloud metadata endpoints, when the HTTP store backend is enabled. Unlike a typical blind SSRF, Glance stores the fetched content as image payload that the attacker can then download in full, making credential theft from the instance metadata service (169.254.169.254) directly achievable. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires: (1) a valid OpenStack tenant account with permission to create images and specify HTTP image locations via the Glance v2 API - anonymous or unauthenticated access is insufficient; (2) the Glance HTTP store backend must be explicitly enabled in glance-api.conf (the 'http' store must appear in the enabled stores list, which is not universally the default but is commonly deployed); (3) network reachability from the Glance service host to the target internal resource - for metadata SSRF, the cloud metadata endpoint 169.254.169.254 must be accessible from the Glance server's network namespace, which is typical in most cloud deployments. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Real-world risk for CVE-2026-71198 is materially higher than a typical authenticated SSRF because the blind-to-full-read elevation is built into the vulnerability: the attacker does not need a side-channel to exfiltrate SSRF responses. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upstream fix patches are available as interdependent Gerrit review sets: for 2025.1/epoxy apply reviews 1003822, 1003823, 1003824, 1003825 in that order; for 2025.2/flamingo apply 1003816, 1003817, 1003818, 1003819; for 2026.1/gazpacho apply 1003812, 1003813, 1003814, 1003815. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, audit which OpenStack deployments have the HTTP store backend enabled and document all tenant accounts with image-creation permissions; immediately evaluate whether HTTP image locations are operationally necessary. …
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