Internal-network probing via IPv6-mapped address validation bypass
Published Feb 16, 2026 · Updated Feb 16, 2026
SSRF in DeepAudit 3.0.0 through 3.0.3 allows remote authenticated users to probe internal services via crafted embedding URLs. The IP-address validator in backend/app/api/v1/endpoints/embedding_config.py compares IPv6-mapped IPv4 hosts without normalizing them, so private and loopback destinations bypass the blocked ranges. A valid session and access to the embedding test endpoint are required; response timing reveals whether targeted internal ports accept connections.
Summary
What happened
SSRF in DeepAudit 3.0.0 through 3.0.3 allows remote authenticated users to probe internal services via crafted embedding URLs. The IP-address validator in backend/app/api/v1/endpoints/embedding_config.py compares IPv6-mapped IPv4 hosts without normalizing them, so private and loopback destinations bypass the blocked ranges. A valid session and access to the embedding test endpoint are required; response timing reveals whether targeted internal ports accept connections.
The record
- CVE
- CVE-2026-2532
- Published
- Feb 16, 2026
- Updated
- Feb 16, 2026
- Vendor
- lintsinghua
- Product
- DeepAudit
- Classifications
- CWE-918, T1046
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 16, 2026CVE publishedPublication date reported by the CVE source.
- Feb 16, 2026Record 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=3.0.0
- Affected versionversion=3.0.1
- Affected versionversion=3.0.2
- Affected versionversion=3.0.3
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- IPv6-mapped IPv4 internal-range bypass examplesproof of concept · unverified
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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