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CVE-2026-75625— Kraken Agents Peer-to-Peer Download Cache Poisoning via Digest Verification Bypass

Quick assessment

Affected
uber kraken
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Uber Open Source Kraken是Uber Open Source组织开源的一个基于点对点协议的容器镜像分发工具。 Uber Open Source Kraken 0.1.27及之前版本存在加密问题漏洞，该漏洞源于未能验证对等下载的blob与请求的SHA-256摘要，仅依赖CRC32校验和进行分片验证，可能导致攻击者通过代理间路径或恶意对等节点提供替换内容，利用伪造的CRC32校验和通过检查，污染缓存，导致其他主机重新播种并执行攻击者选择的容器镜像层或清单。

CVSS 9.0 · Critical EPSS 0.24% · P14

Affected Version Matrix 1

VendorProduct Version RangeStatus
uber kraken ≤ 0.1.27 affected
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I. Basic Information for CVE-2026-75625

Vulnerability Information
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Vulnerability Title
Kraken Agents Peer-to-Peer Download Cache Poisoning via Digest Verification Bypass
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
完整性检查值验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Uber Open Source Kraken 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Uber Open Source Kraken是Uber Open Source组织开源的一个基于点对点协议的容器镜像分发工具。 Uber Open Source Kraken 0.1.27及之前版本存在加密问题漏洞，该漏洞源于未能验证对等下载的blob与请求的SHA-256摘要，仅依赖CRC32校验和进行分片验证，可能导致攻击者通过代理间路径或恶意对等节点提供替换内容，利用伪造的CRC32校验和通过检查，污染缓存，导致其他主机重新播种并执行攻击者选择的容器镜像层或清单。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
uber kraken 0 ~ 0.1.27 -

II. Public POCs for CVE-2026-75625

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 9166 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
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Trigger conditions & impact
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III. Intelligence Information for CVE-2026-75625

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Patches & Fixes for CVE-2026-75625 (1)

News Coverage for CVE-2026-75625 (2)

IV. Related Vulnerabilities

Same product: kraken
Same vendor: uber
Same weakness: CWE-354

V. Comments for CVE-2026-75625

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