CVE-2026-56839Public exploitNetwork attack vectorHinoki check available

Host file access via unset workspace boundary

Published Sep 14, 2026 · Updated Sep 14, 2026

Path traversal in PraisonAI before 4.6.59 allows remote authenticated users to read and modify host files via prompt-influenced tool calls. The CODE_TOOLS wrappers pass a null workspace to read_file, search_replace, and apply_diff, whose containment checks run only when the workspace value is truthy. Exposure requires those tools to process untrusted content before set_workspace runs, and access remains limited to files available to the PraisonAI process.

CVSS severity7.3
High
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Path traversal in PraisonAI before 4.6.59 allows remote authenticated users to read and modify host files via prompt-influenced tool calls. The CODE_TOOLS wrappers pass a null workspace to read_file, search_replace, and apply_diff, whose containment checks run only when the workspace value is truthy. Exposure requires those tools to process untrusted content before set_workspace runs, and access remains limited to files available to the PraisonAI process.

The record

CVE
CVE-2026-56839
Published
Sep 14, 2026
Updated
Sep 14, 2026
Vendor
PraisonAI
Product
PraisonAI
Classifications
CWE-22, CWE-863, CWE-200, T1565.001, T1005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 14, 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.

  1. Affected versionversion=< 4.6.59

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

PraisonAI · PraisonAIversion=< 4.6.59

Published CVSS scores

7.3GitHub Security AdvisoryCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A: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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-863Incorrect Authorization
CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1565.001Stored Data Manipulation
T1005Data from Local System

Public exploit references

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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