{"id":"CVE-2026-75625","summary":"Kraken Agents Peer-to-Peer Download Cache Poisoning via Digest Verification Bypass","details":"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.","modified":"2026-08-20T03:55:20.301139703Z","published":"2026-08-18T17:56:54.292Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-354"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/75xxx/CVE-2026-75625.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/75xxx/CVE-2026-75625.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-75625"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/kraken-agents-peer-to-peer-download-cache-poisoning-via-digest-verification-bypass"},{"type":"REPORT","url":"https://github.com/uber/kraken/issues/638"},{"type":"PACKAGE","url":"https://github.com/uber/kraken"},{"type":"ARTICLE","url":"https://github.com/uber/kraken/blob/master/lib/torrent/storage/agentstorage/torrent.go"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/uber/kraken","events":[{"introduced":"0"},{"last_affected":"a4732524b1932af4e5c742cdf12a9a9ba4532148"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"0"},{"last_affected":"0.1.27"}]}}],"versions":["v0.1.27","v0.1.26","v0.1.25","v0.1.24","v0.1.23","v0.1.22","v0.1.21","v0.1.20","v0.1.19","v0.1.18","v0.1.17","v0.1.16","v0.1.15","v0.1.14","v0.1.13","v0.1.12","v0.1.11","v0.1.10","v0.1.9","v0.1.8","v0.1.7","v0.1.6","v0.1.4","v0.1.3","v0.1.2","v0.1.1","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-75625.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}