CVE-2026-75625

Kraken agents fail to verify peer-to-peer downloaded blobs against their requested SHA-256 digest before committing to the content-addressable cache, relying only on CRC32 checksums for piece validation. Attackers on the agent-to-agent path or malicious peers can supply substituted content with forged CRC32 corrections that passes per-piece checks, poisoning the cache with attacker-chosen container image layers or manifests that are re-seeded and executed by other hosts.

CVSS v3 9.0 CRITICAL

9.0^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 2.2 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://github.com/uber/kraken
https://github.com/uber/kraken/blob/master/lib/torrent/storage/agentstorage/torrent.go
https://github.com/uber/kraken/issues/638
https://www.vulncheck.com/advisories/kraken-agents-peer-to-peer-download-cache-poisoning-via-digest-verification-bypass
https://github.com/uber/kraken/issues/638

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-18 18:19

Updated : 2026-08-18 20:17

NVD link : CVE-2026-75625

Mitre link : CVE-2026-75625

CVE.ORG link : CVE-2026-75625

JSON object : View

Products Affected

No product.

CWE

CWE-354

Improper Validation of Integrity Check Value

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