CVE-2025-27519Network attack vector

Remote code execution via upload path traversal

Published Mar 7, 2025 · Updated Mar 7, 2025

Path traversal in TrueFoundry Cognita before commit a78bd065e05a1b30a53a3386cc02e08c317d2243 allows remote attackers to execute code. The /v1/internal/upload-to-local-directory handler joins an untrusted filename to the destination and writes it without resolving or restricting the resulting path. The endpoint is enabled when Local is true, including in the default Docker setup; overwriting /app/backend/init.py triggers Uvicorn auto-reload and executes code inside the container.

CVSS severity9.3
Critical
EPSS probability1.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in TrueFoundry Cognita before commit a78bd065e05a1b30a53a3386cc02e08c317d2243 allows remote attackers to execute code. The /v1/internal/upload-to-local-directory handler joins an untrusted filename to the destination and writes it without resolving or restricting the resulting path. The endpoint is enabled when Local is true, including in the default Docker setup; overwriting /app/backend/init.py triggers Uvicorn auto-reload and executes code inside the container.

The record

CVE
CVE-2025-27519
Published
Mar 7, 2025
Updated
Mar 7, 2025
Vendor
TrueFoundry
Product
Cognita
Classifications
CWE-22, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 7, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 7, 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.

  1. Affected versionversion=< a78bd065e05a1b30a53a3386cc02e08c317d2243

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

TrueFoundry · Cognitaversion=< a78bd065e05a1b30a53a3386cc02e08c317d2243

Published CVSS scores

9.3GitHub CNACVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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