Authenticated host-file disclosure via QCOW2 external data
Published Jul 5, 2024 · Updated Nov 4, 2025
Arbitrary file access in Cinder through 24.0.0, Glance before 28.0.2, and Nova before 29.0.3 allows remote authenticated users to read server files. QCOW2 processing accepts an attacker-chosen external data-file path and returns the referenced host file's contents instead of rejecting the image. Every Cinder and Nova deployment is exposed to an authenticated image user; Glance is exposed only when image conversion is enabled.
Summary
What happened
Arbitrary file access in Cinder through 24.0.0, Glance before 28.0.2, and Nova before 29.0.3 allows remote authenticated users to read server files. QCOW2 processing accepts an attacker-chosen external data-file path and returns the referenced host file's contents instead of rejecting the image. Every Cinder and Nova deployment is exposed to an authenticated image user; Glance is exposed only when image conversion is enabled.
The record
- CVE
- CVE-2024-32498
- Published
- Jul 5, 2024
- Updated
- Nov 4, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-552, CWE-200, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 5, 2024CVE publishedPublication date reported by the CVE source.
- Nov 4, 2025Record updatedLatest update available in the CVE record.
Exploitability
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What is affected?
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Published CVSS scores
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Attacks
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Technologies
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