EUVD-2026-64856
GHSA-mh87-9v73-ffwc
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Network-accessible unauthenticated API with no interaction required; only limited confidentiality impact from private key enumeration confirmed; integrity and availability impacts not substantiated by available evidence.
Primary rating from Vendor (CIRCL).
CVSS VectorVendor: CIRCL
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
2DescriptionCVE.org
Ransomlook contains a Redis glob pattern injection vulnerability caused by insufficient neutralization of user-controlled input before it is incorporated into Redis SCAN MATCH patterns.
The /api/health/<name> endpoint attempted to resolve the supplied name to a known group or market, but when resolution failed it fell back to using the attacker-controlled value directly in a Redis key pattern. An unauthenticated attacker could therefore supply Redis glob metacharacters such as *, ?, [ or ] to broaden the SCAN operation beyond the intended group. For example, requesting /api/health/* could enumerate health information, mirror slugs, and uptime series belonging to all groups and markets, including entities marked as private.
Similar unsafe interpolation was present in /api/crypto/chain/<chain> and in the delete_manual_torrent() function. The latter represents a potentially destructive sink because a crafted infohash containing glob metacharacters could cause the scan to match torrent-health keys belonging to other torrents if attacker-controlled input can reach that function.
The patch removes the unsafe fallback from the health endpoint and introduces glob escaping for user-controlled values before they are incorporated into Redis SCAN MATCH expressions.
AnalysisAI
Redis glob pattern injection in Ransomlook versions up to and including 2.0.0 allows unauthenticated remote attackers to enumerate health data for all tracked groups and markets - including those flagged as private - by supplying glob metacharacters to the /api/health/<name> and /api/crypto/chain/<chain> endpoints. The vulnerability stems from unsanitized caller-supplied values being interpolated directly into Redis SCAN MATCH patterns, expanding scan scope beyond the intended target entity. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | No authentication is required per the CVSS 4.0 PR:N metric. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The provided CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N, score 6.9) reflects a remotely exploitable, unauthenticated, low-complexity flaw with limited confidentiality impact and no assessed integrity or availability impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An unauthenticated attacker sends an HTTP GET request to /api/health/* on a publicly accessible Ransomlook instance running an unpatched version; because the asterisk does not resolve to a known group, the pre-patch fallback interpolates the literal * into the Redis SCAN pattern health:*:*, causing Redis to return health records for every tracked entity including private groups. No public exploit code exists, but exploitation requires only a standard HTTP client and awareness of the endpoint structure, which is fully derivable from the open-source codebase on GitHub. |
| Remediation | Update Ransomlook to a version incorporating commit 1f14c01b6fdf8d534edfb2790cf76f5bac6e73f8, available at https://github.com/RansomLook/RansomLook/commit/1f14c01b6fdf8d534edfb2790cf76f5bac6e73f8. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-200 – Information Exposure
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External POC / Exploit Code
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