Chartbrew: Private chart data disclosure via forgeable CB_SECRET share tokens
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| chartbrew | chartbrew | affected |
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No data.
No data.
| Vendor | Product | Versions | ||||||||
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| Chartbrew | Chartbrew |
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No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.193% probability within 30 days)
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| Metrics |
ssvc
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| First Time appeared |
Chartbrew
Chartbrew chartbrew |
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| Vendors & Products |
Chartbrew
Chartbrew chartbrew |
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| Description | Chartbrew is an open-source web application that can connect directly to databases and APIs and use the data to create charts. Prior to 5.2.3, Chart share and embed tokens were signed with CB_SECRET, including known or shipped-default values in stock source and repository Docker Compose installs. The vulnerable surface is chart share-token verification and filter-access routes for private charts. An attacker who knows the deployment's CB_SECRET targets a private chart that has been shared at least once so a share-policy row exists, then forges a Chart-subject token for that chart id. The known signing key permits valid Chart tokens, and the filter-access path accepts sequential integer ids without requiring a legitimate share link; token expiry and revocation are ineffective once the secret is known. The condition requires a known or default secret and an existing share-policy row. A bare container where CB_SECRET is undefined is outside this path, and a unique secret excludes it only while the value remains unknown and unpredictable. An unauthenticated attacker can enumerate integer ids and read arbitrary private chart data, including chartData, without possessing a legitimate share link. This issue is fixed in version 5.2.3. | |
| Title | Chartbrew: Private chart data disclosure via forgeable CB_SECRET share tokens | |
| Weaknesses | CWE-347 | |
| References |
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| Metrics |
cvssV3_1
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