CVE-2026-75625 Kraken Agents Peer-to-Peer Download Cache Poisoning via Digest Verification Bypass
Attackers can poison the Kraken agent cache with malicious container images by bypassing SHA-256 verification, leading to code execution on other hosts.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-75625?
CVE-2026-75625 is a critical vulnerability in uber kraken, published on 18 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-354
Which versions are affected by CVE-2026-75625?
How do I fix CVE-2026-75625?
No fix has been published for CVE-2026-75625 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-75625 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-75625 exists.
Sources
Also known as GHSA-xpm6-xhxf-22h5, UBUNTU-CVE-2026-75625.