CVE-2026-78555

Source
https://cve.org/CVERecord?id=CVE-2026-78555
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-78555.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-78555
Published
2026-08-24T19:38:50.437Z
Modified
2026-08-28T11:30:54.148756226Z
Severity
  • 9.4 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H CVSS Calculator
Summary
RansomLook API Key Disclosure Through /admin/apikeys HTML Source
Details

RansomLook exposed complete API keys in the HTML source of the authenticated /admin/apikeys administration page. Although the interface displayed only a shortened representation of each key, the full token was embedded in hidden form fields used by the enable/disable, private-access, and delete actions.

As a result, API credentials could be recovered by inspecting the page source or DOM. The credentials could also be unintentionally exposed through components that retain or inspect HTTP response bodies, such as debugging proxies, browser caches, monitoring systems, or other intermediaries. An attacker obtaining one of these tokens could subsequently authenticate using the privileges assigned to that key, including access to private data where the key was granted such permissions.

The patch removes API keys from subsequent page rendering and replaces them with SHA-256-derived opaque handles. Administrative actions submit only these handles, which are resolved back to the corresponding token on the server. The full API key is therefore disclosed only once, when it is initially created.

Database specific
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/78xxx/CVE-2026-78555.json",
    "cwe_ids": [
        "CWE-200",
        "CWE-522"
    ],
    "cna_assigner": "CIRCL"
}
References

Affected packages

Git / github.com/ransomlook/ransomlook

Affected ranges

Type
GIT
Repo
https://github.com/ransomlook/ransomlook
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
Database specific
Show details
{
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "2.0.0"
        }
    ]
}

Affected versions

1.*
1.2.0
1.3.0
1.4.0
1.5.0
1.6.0
1.8.0
1.9.0
2.*
2.0.0

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-78555.json"