CVE-2026-39306Public exploitNetwork attack vector

Arbitrary file write via unchecked tar extraction

Published Apr 7, 2026 · Updated Apr 7, 2026

Path traversal in PraisonAI before 4.5.113 allows remote authenticated users to write outside a pull destination via a crafted recipe. LocalRegistry.pull and HttpRegistry.pull pass unvalidated archive members to tar.extractall, allowing parent-directory entries to escape the recipe directory. Exploitation requires a user or automated job to pull the recipe; checksum validation does not block traversal embedded in the signed bundle.

CVSS severity7.3
High
EPSS probability0.29%
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 PraisonAI before 4.5.113 allows remote authenticated users to write outside a pull destination via a crafted recipe. LocalRegistry.pull and HttpRegistry.pull pass unvalidated archive members to tar.extractall, allowing parent-directory entries to escape the recipe directory. Exploitation requires a user or automated job to pull the recipe; checksum validation does not block traversal embedded in the signed bundle.

The record

CVE
CVE-2026-39306
Published
Apr 7, 2026
Updated
Apr 7, 2026
Vendor
PraisonAI
Product
PraisonAI
Classifications
CWE-22, T1195.002
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 7, 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=< 4.5.113

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

PraisonAI · PraisonAIversion=< 4.5.113

Published CVSS scores

7.3GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H

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')
T1195.002Compromise Software Supply Chain

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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