CVEvulnerability
CVE-2026-75625
9.1 CRITICAL
Official page ↗
- Status
- Deferred
- Published
- 2026-08-18
- Last modified
- 2026-10-22
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 9.1 CRITICAL — 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 9.0 CRITICAL — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
- Weaknesses
- CWE-354
Description
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.
Related
Weakness · CWE (1)
- CWE-354 Improper Validation of Integrity Check Value weakness
References
- https://github.com/uber/kraken github.com
- https://github.com/uber/kraken/blob/master/lib/torrent/storage/agentstorage/torrent.go github.com
- https://github.com/uber/kraken/issues/638 github.com
- https://www.vulncheck.com/advisories/kraken-agents-peer-to-peer-download-cache-poisoning-via-digest-verification-bypass www.vulncheck.com
- https://github.com/uber/kraken/issues/638 github.com