CVE-2026-75625

Kraken Agents Peer-to-Peer Download Cache Poisoning via Digest Verification Bypass

Published Aug 18, 2026 CVSS 4.0 · 9.1 Critical EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Kraken Agents Peer-to-Peer Download Cache Poisoning via Digest Verification Bypass
First Time appeared Uber
Uber kraken
Weaknesses CWE-354
CPEs cpe:2.3:a:uber:kraken:*:*:*:*:*:*:*:*
Vendors & Products Uber
Uber kraken
References
Metrics cvssV3_1

{'score': 9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.1, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Sep 24, 2026, 2:19 PM
Reserved
Aug 18, 2026, 1:03 AM
Status
Deferred
Published
Aug 18, 2026, 6:19 PM
Modified
Oct 22, 2026, 10:10 PM