EUVD-2026-67327
GHSA-5xh8-pmj2-f75q
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Remote unauthenticated low-complexity read-only path traversal, so AV:N/AC:L/PR:N with C:H; no described write or DoS primitive, so I:N and A:N.
Primary rating from Vendor (mitre).
CVSS VectorVendor: mitre
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
4DescriptionCVE.org
The static resource interface /api/static/{deployKey}/ of Yu AI Code Mother v4.3 is vulnerable to path traversal. The user-controlled path is concatenated to the preview root directory without any normalization, allowing anonymous attackers to read files outside the preview root.
AnalysisAI
Arbitrary file read in Yu AI Code Mother v4.3 lets anonymous, remote attackers retrieve files outside the intended preview directory via the /api/static/{deployKey}/ static-resource endpoint, which concatenates attacker-controlled path segments to the preview root without normalization. Publicly available exploit code exists, though the flaw is not listed in CISA KEV and carries a low EPSS score (0.15%, 4th percentile), indicating no evidence of widespread active exploitation. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The target must expose the Yu AI Code Mother v4.3 static-resource interface at /api/static/{deployKey}/, and the preview/static-serving feature must be reachable by the attacker. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Signals conflict and warrant recalibration. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patch or fixed version was identified at time of analysis, and the references contain only NVD and a third-party PoC rather than an upstream fix commit or tagged release, so monitor the project's repository for an official patched build and upgrade as soon as one is published. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: inventory all instances of Yu AI Code Mother v4.3 in your environment, restrict network access to the /api/static/ endpoint to authorized networks only, and review current file-system permissions to limit sensitive file exposure. …
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Same weakness CWE-22 – Path Traversal
View allSame technique Path Traversal
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External POC / Exploit Code
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