Onion-site compromise via secrets baked into images
Published Aug 5, 2025 · Updated Aug 6, 2025
Credential exposure in Vessel9817 Onion Site Template at commit 3196bd89 and before bc9ba0fd allows attackers to obtain Tor service secrets. The Tor Dockerfile copies the local secrets directory into /var/lib/tor/website during image construction, embedding the onion domain's private material in every built image layer. Exploitation requires an existing onion domain's secrets in the build context and a resulting image that is shared, published, or acquired from the host, after which the associated website can be impersonated or compromised.
Summary
What happened
Credential exposure in Vessel9817 Onion Site Template at commit 3196bd89 and before bc9ba0fd allows attackers to obtain Tor service secrets. The Tor Dockerfile copies the local secrets directory into /var/lib/tor/website during image construction, embedding the onion domain's private material in every built image layer. Exploitation requires an existing onion domain's secrets in the build context and a resulting image that is shared, published, or acquired from the host, after which the associated website can be impersonated or compromised.
The record
- CVE
- CVE-2025-54872
- Published
- Aug 5, 2025
- Updated
- Aug 6, 2025
- Vendor
- Vessel9817
- Product
- Onion Site Template
- Classifications
- CWE-798, T1552.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 5, 2025CVE publishedPublication date reported by the CVE source.
- Aug 6, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=>= 3196bd896fed58306d42cc9f4c1e0760e8c829c9, < bc9ba0fd8cc7fbb3abc6759b351885a4501bce84
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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