PraisonAI before 4.6.78 Arbitrary File Write and Command Execution

published 2026-07-11 3 mo ago modified 2026-10-25 14 d ago also GHSA-9mp3-24cc-77mg , PYSEC-2026-4253 , EUVD-2026-43181

cvss: 9.9; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 50%
public exploits: 0; none known

PraisonAI before 4.6.78 contains arbitrary file write and command execution vulnerabilities in the AICoder component due to missing path validation and command sanitization in LLM tool calls. Attackers can inject malicious prompts through the chat interface to write files to arbitrary filesystem locations and execute arbitrary shell commands with root privileges.

Patch / fix

fixed in 2

pypi praisonai 4.6.78
MervinPraison PraisonAI 4.6.78

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: total
Assessed: 3 mo ago (2026-07-14)

Exploit prediction

0.64% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-9mp3-24cc-77mg referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	9.4	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CNA	3.1	9.9	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CNA	4.0	9.4	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/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
OSV	3.1	9.9	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
GitHub	3.1	9.9	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
pypi	praisonai	<4.6.78	4.6.78

Affected products

MervinPraison PraisonAI

Classification

Weakness

CWE-22 Improper Limitation of a Pathname to a Restricted Directory
CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

github.com /MervinPraison/PraisonAI/security/advisories/GHSA-9mp3-24cc-77mg
vendor-advisory, exploit, web
vulncheck.com /advisories/praisonai-before-arbitrary-file-write-and-command-execution
third-party-advisory, web
nvd.nist.gov /vuln/detail/CVE-2026-61445
advisory
github.com /MervinPraison/PraisonAI
package
pypi.org /project/praisonai
package
github.com /advisories/GHSA-9mp3-24cc-77mg
advisory

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary