CVE-2026-44340Public exploitNetwork attack vector

Arbitrary file write via unchecked archive symlinks

Published May 8, 2026 · Updated May 8, 2026

Path traversal in PraisonAI before 4.6.37 allows attackers to write arbitrary files by supplying a crafted .praison archive. The _safe_extractall helper checks member names but neither validates link targets nor rejects link members before tar.extractall follows an escaping symlink. Exploitation requires a malicious bundle to reach recipe pull, publish, or unpack; the resulting write is limited by the PraisonAI process's filesystem permissions.

CVSS severity8.7
High
EPSS probability0.43%
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 4.6.37 allows attackers to write arbitrary files by supplying a crafted .praison archive. The _safe_extractall helper checks member names but neither validates link targets nor rejects link members before tar.extractall follows an escaping symlink. Exploitation requires a malicious bundle to reach recipe pull, publish, or unpack; the resulting write is limited by the PraisonAI process's filesystem permissions.

The record

CVE
CVE-2026-44340
Published
May 8, 2026
Updated
May 8, 2026
Vendor
PraisonAI
Product
PraisonAI
Classifications
CWE-22, CWE-59, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 8, 2026CVE publishedPublication date reported by the CVE source.
  2. May 8, 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=< 4.6.37

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

PraisonAI · PraisonAIversion=< 4.6.37

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
8.7GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/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 exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-59Improper Link Resolution Before File Access ('Link Following')
T1204.002Malicious File

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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