Exposed API Credentials in RansomLook Administration Interface
CVE-2026-78555

9.4CRITICAL

Key Information:

Vendor

Ransomlook

Status
Ransomlook
Vendor
CVE Published:
24 August 2026

What is CVE-2026-78555?

The RansomLook administration page contains a serious issue where full API keys are embedded in hidden form fields on the /admin/apikeys page. Despite displaying only a truncated version in the interface, these keys can be extracted by reviewing the page source or using tools that analyze the DOM. This vulnerability poses a risk as API credentials may inadvertently be revealed through various means, including debugging proxies and browser caches. An attacker who obtains these tokens can leverage them to authenticate and gain unauthorized access to private data associated with these keys. A recent patch has been implemented to enhance security by replacing the exposed API keys with opaque SHA-256 handles, ensuring that the actual keys are revealed only during their creation, thus mitigating the risk of exposure.

Affected Version(s)

ransomlook 0 <= 2.0.0

References

https://github.com/RansomLook/RansomLook/commit/b358dfa4f...
patch

CVSS V4

Score:
9.4
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Jeroen Pinoy
Fafner [_KeyZee_]
.