Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/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
Network-accessible endpoint exploitable without authentication; impact limited to partial file read with no integrity or availability consequence.
Primary rating from Vendor (VulDB).
CVSS VectorVendor: VulDB
Lifecycle Timeline
2DescriptionCVE.org
A vulnerability was detected in NousResearch hermes-agent up to 2026.5.16. This impacts the function extract_media of the file gateway/platforms/base.py of the component Live Webhook Endpoint. Performing a manipulation results in path traversal. The attack may be initiated remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
AnalysisAI
Path traversal in NousResearch hermes-agent (all versions through 2026.5.16) exposes arbitrary server-side files via the Live Webhook Endpoint's extract_media function in gateway/platforms/base.py. Remote, unauthenticated attackers can read files outside the intended directory, resulting in low-confidentiality-impact disclosure - potentially exposing configuration files, credentials, or internal data. A public proof-of-concept exploit is available on GitHub; however, this vulnerability has not been listed in CISA KEV, indicating active exploitation is not yet confirmed at time of analysis.
Technical ContextAI
The affected component is the extract_media function within gateway/platforms/base.py, part of hermes-agent's Live Webhook Endpoint - a gateway layer that appears to handle media or file retrieval triggered by inbound webhook events. CWE-22 (Path Traversal) is the root cause class: user-supplied input (likely a filename or path parameter) is passed to a file-access routine without sufficient normalization or canonicalization, allowing ../ or equivalent directory traversal sequences to escape the intended base directory. The CPE string cpe:2.3:a:nousresearch:hermes-agent:*:*:*:*:*:*:*:* covers all versioned releases without platform restriction, suggesting the flaw is cross-platform. NousResearch hermes-agent is an AI agent framework; the webhook endpoint likely supports multi-modal or media-handling pipelines, making file path handling a natural integration point and attack surface.
RemediationAI
No vendor-released patch identified at time of analysis - the vendor did not respond to pre-disclosure contact, and no fix version has been published. As immediate compensating controls: disable or firewall the Live Webhook Endpoint entirely if not operationally required, as this eliminates the attack surface without code changes. If the endpoint must remain active, apply an ingress validation layer (WAF rule or reverse proxy rewrite) to reject requests containing path traversal sequences (../, ..\, URL-encoded variants %2e%2e%2f) in any path or filename parameter - note this may break legitimate deep-path media references if any exist. Restrict network access to the endpoint to trusted IP ranges only, reducing exposure to unauthenticated remote attackers. Monitor endpoint access logs for anomalous path patterns as a detection measure. No official vendor advisory URL is available; track https://vuldb.com/cve/CVE-2026-14628 for updates.
More in Hermes Agent
View allRemote code execution in NousResearch Hermes Agent 0.18.2-0.21.0 allows an unauthenticated attacker to execute arbitrary
Remote command injection in NousResearch hermes-agent allows unauthenticated attackers to execute arbitrary OS commands
Path traversal in NousResearch hermes-agent through version 2026.4.16 allows remote unauthenticated attackers to bypass
Remote sandbox escape in NousResearch hermes-agent versions up to 2026.4.16 allows unauthenticated attackers to manipula
Path traversal in NousResearch hermes-agent 0.8.0 exposes arbitrary server-side files to unauthenticated remote attacker
Remote code/prompt injection in NousResearch Hermes Agent through 0.12.0 stems from improper neutralization in the _comp
Remote injection in NousResearch Hermes Agent through version 2026.4.30 allows unauthenticated attackers to manipulate t
Code injection in NousResearch hermes-agent 2026.4.23 allows remote unauthenticated attackers to inject and execute arbi
Improper output escaping in NousResearch Hermes Agent versions up to 2026.4.16 allows remote unauthenticated attackers t
Remote injection vulnerability in NousResearch hermes-agent versions up to 2026.4.23 enables unauthenticated attackers t
Uncontrolled resource consumption in NousResearch hermes-agent (all versions through 2026.4.30) allows remote unauthenti
Missing authorization in NousResearch hermes-agent versions up to 2026.4.16 allows remote attackers to bypass authentica
Same weakness CWE-22 – Path Traversal
View allSame technique Path Traversal
View allShare
External POC / Exploit Code
Leaving vuln.today
EUVD-2026-41673
GHSA-85cr-q769-68x2