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Aim CVE-2026-85663

| EUVDEUVD-2026-71119 CRITICAL
Missing Authentication for Critical Function (CWE-306)
2026-09-04 VulnCheck GHSA-5h56-hf5q-phrw
9.3
CVSS 4.0 · Vendor: VulnCheck
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Severity by source

Vendor (VulnCheck) PRIMARY
9.3 CRITICAL
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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
vuln.today AI
9.8 CRITICAL

Unauthenticated network dispatch with no allowlist yields C/I/A:H (data read, run deletion, and vendor-claimed RCE); scope unchanged as impact stays on the tracking host.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (VulnCheck).

CVSS VectorVendor: VulnCheck

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

2
Analysis Generated
Sep 04, 2026 - 15:40 vuln.today
CVE Published
Sep 04, 2026 - 14:32 cve.org
CRITICAL 9.3

DescriptionCVE.org

Aim 3.29.1 remote tracking server fails to authenticate requests and dispatches arbitrary methods through getattr without allowlist validation. Unauthenticated attackers can register clients, instantiate Repo resources, and invoke arbitrary methods to read experiments or delete runs.

AnalysisAI

Unauthenticated remote method dispatch in the Aim 3.29.1 ML experiment-tracking server lets attackers reach the tracking RPC endpoint without any credentials and invoke arbitrary methods via an unguarded getattr call. Because there is no allowlist, an attacker can register a client, instantiate Repo resources, and call methods that read experiment data or delete runs; VulnCheck's advisory frames the same dispatch primitive as achieving full remote code execution. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
technique details hidden
Delivery
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Exploit
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Execution
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Impact
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Vulnerability AssessmentAI

Exploitation Requires network reachability to Aim 3.29.1's remote tracking server (the transport RPC endpoint in aim/ext/transport/server.py); the server must be running in remote-tracking mode and be reachable by the attacker. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment This is a genuine high priority where the tracking server is network-reachable. … 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 patched version is identified at time of analysis - the input references a GitHub issue (aimhubio/aim#3412) and a VulnCheck advisory but no tagged fixed release, so upstream fix status is unconfirmed; monitor https://github.com/aimhubio/aim/issues/3412 and the VulnCheck advisory for a patched version. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, identify and isolate all systems running Aim ≤3.29.1 by restricting network access to the tracking RPC endpoint to trusted internal subnets only and considering offline deployment for instances handling sensitive data. …

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CVE-2026-85663 vulnerability details – vuln.today

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