CVE-2026-75625
9.1
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| uber | kraken | 0 <= 0.1.27 | affected |
Weaknesses
- CWE-354: Improper Validation of Integrity Check Value
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: no
- Technical Impact: total
Additional References
References
- https://github.com/uber/kraken/issues/638
- https://github.com/uber/kraken
- https://github.com/uber/kraken/blob/master/lib/torrent/storage/agentstorage/torrent.go
- https://www.vulncheck.com/advisories/kraken-agents-peer-to-peer-download-cache-poisoning-via-digest-verification-bypass
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