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CVE-2026-78380— Private Group and Market Posts Disclosed Through Public Notification Channels in RansomLook

Quick assessment

Affected
ransomlook ransomlook
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.

漏洞描述翻译： RansomLook 在向外部通知渠道分发新收集的受害者帖子时，未能正确执行勒索软件团伙和市场的隐私状态设置。其帖子后处理逻辑仅检查单个帖子是否被标记为私密，但未验证该帖子所属的团伙或市场是否已配置为私密。 因此，即使某个团伙或市场已明确设置为禁止公开披露，与之关联的新解析的受害者信息仍可能通过已启用的 Rocket.Chat、Mastodon、Bluesky 和电子邮件等通知渠道自动发布。 类似的问题也影响了公开的 MISP（Malware Information Sharing Platform

CVSS 8.7 · High

Possible ATT&CK Techniques 1 AI

T1567 · Exfiltration Over Web Service
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I. Basic Information for CVE-2026-78380

Vulnerability Information
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Vulnerability Title
Private Group and Market Posts Disclosed Through Public Notification Channels in RansomLook
Source: CVE Program / CVE List V5
Vulnerability Description
RansomLook fails to enforce the privacy status of ransomware groups and markets when distributing newly collected victim posts to external notification channels. The post-processing logic checks whether an individual post is marked private but does not verify whether the group or market to which the post belongs is configured as private. As a result, newly parsed victim information associated with a private group or market may be automatically published through enabled Rocket.Chat, Mastodon, Bluesky, and e-mail notification channels despite the entity being explicitly configured to prevent public disclosure. A similar issue affects the public MISP feed. The feed previously determined privacy using groupinfo(), which only queries the group database. Consequently, victim information associated with private markets could be added to the public MISP feed because the corresponding market privacy flag was not evaluated. An attacker or other unauthorized party able to access these public notification channels or the MISP feed may obtain victim information that was intended to remain private. Depending on the collected data, this may disclose victim names, ransomware activity, incident information, or other information associated with privately monitored groups and markets. The fix introduces a common is_private_entity() check covering both groups and markets and prevents private entity posts from being distributed through external notification channels or the public MISP feed. Internal storage and dashboard alerting remain unaffected.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
ransomlook ransomlook 0 ~ 2.0.0 -

II. Public POCs for CVE-2026-78380

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Qwen3.6-35B-A3B · 12570 chars
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III. Intelligence Information for CVE-2026-78380

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Patches & Fixes for CVE-2026-78380 (1)

Same Patch Batch · ransomlook · 2026-08-24 · 13 CVEs total

CVE-2026-78387 9.4 CRITICAL RansomLook Missing Authorization in Web Configuration Editor Allows Application Configurat
CVE-2026-78555 9.4 CRITICAL RansomLook API Key Disclosure Through /admin/apikeys HTML Source
CVE-2026-78372 9.2 CRITICAL RansomLook Missing Authorization Allows Disclosure of Private Group and Ransom Note Data
CVE-2026-78370 9.2 CRITICAL RansomLook Unauthenticated Database Export Exposes Private Data
CVE-2026-78369 8.8 HIGH Missing Authentication Allows Unauthorized Creation of Crypto Groups in RansomLook
CVE-2026-78391 8.8 HIGH Stored Cross-Site Scripting via Untrusted Cryptocurrency Address Rendering in RansomLook
CVE-2026-78551 8.8 HIGH RansomLook Login Endpoint Allows Timing-Based Username Enumeration and Unthrottled Authent
CVE-2026-78386 8.7 HIGH Unauthenticated Disclosure of Scraping Credentials and Bypass Configuration via RansomLook
CVE-2026-78381 8.2 HIGH RansomLook Arbitrary File Read via Path Traversal in Post screen Field
CVE-2026-78385 8.2 HIGH RansomLook Analysis PDF Generation Allows Server-Side Request Forgery and Arbitrary Local
CVE-2026-78553 7.0 HIGH Insecure Flask Secret-Key File Permissions Allow Local Administrator Session Forgery in Ra
CVE-2026-78378 6.9 MEDIUM Redis Glob Pattern Injection Allows Unauthorized Enumeration of Private Ransomlook Data

IV. Related Vulnerabilities

Same product: ransomlook
Same vendor: ransomlook
Same weakness: CWE-862

V. Comments for CVE-2026-78380

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