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CVE-2026-78386— Unauthenticated Disclosure of Scraping Credentials and Bypass Configuration via RansomLook API

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.

RansomLook是RansomLook团队的一款勒索软件监测与分析平台。 RansomLook 2.0.0及之前版本存在信息泄露漏洞，该漏洞源于未经验证的API响应暴露敏感的运营商端抓取配置，可能泄露认证头、会话cookie、凭据及绕过防护逻辑等敏感信息，导致未经验证的远程攻击者获取这些值并可能重放认证材料或识别破坏收集机制。

CVSS 8.7 · High EPSS 0.80% · P56

Affected Version Matrix 1

VendorProduct Version RangeStatus
ransomlook ransomlook ≤ 2.0.0 affected
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I. Basic Information for CVE-2026-78386

Vulnerability Information
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Vulnerability Title
Unauthenticated Disclosure of Scraping Credentials and Bypass Configuration via RansomLook API
Source: CVE Program / CVE List V5
Vulnerability Description
RansomLook exposed sensitive operator-side scraping configuration through multiple unauthenticated API responses. Location records associated with ransomware groups and markets were returned largely verbatim to unauthenticated callers whenever the location itself was not marked as private. These records could contain internal fields such as header, which may include authentication headers, session cookies, or other credentials used to access monitored websites; init_script, which may contain logic used to bypass CAPTCHA, anti-bot protections, or paywalls; and browser, which discloses details about the scraping environment. An unauthenticated remote attacker could query the affected API endpoints and obtain these values. Leaked authentication material could potentially be replayed against the monitored service, while disclosure of scraping and bypass logic could allow site operators or other attackers to identify and defeat RansomLook's collection mechanisms. The patch introduces an explicit allowlist of fields permitted in public location records and strips all operator-side fields before returning data to unauthenticated users. The accompanying change from <string:postname> to <path:postname> appears to be a functional correction allowing legitimate post titles containing / and does not, based on this patch alone, represent the security issue.
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
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
RansomLook 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
RansomLook是RansomLook团队的一款勒索软件监测与分析平台。 RansomLook 2.0.0及之前版本存在信息泄露漏洞，该漏洞源于未经验证的API响应暴露敏感的运营商端抓取配置，可能泄露认证头、会话cookie、凭据及绕过防护逻辑等敏感信息，导致未经验证的远程攻击者获取这些值并可能重放认证材料或识别破坏收集机制。
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
ransomlook ransomlook 0 ~ 2.0.0 -

II. Public POCs for CVE-2026-78386

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Reproduced successfully in a real sandbox · Below is the actual recording of building the environment and exploiting the vulnerability.
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claude_code · 11395 chars
GitHub 复现环境（可 clone 直接跑）
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
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Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-78386

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Patches & Fixes for CVE-2026-78386 (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-2026-78380 8.7 HIGH Private Group and Market Posts Disclosed Through Public Notification Channels in RansomLoo
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-200

V. Comments for CVE-2026-78386

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