CVE-2026-39305

criticalpriority · track · 40EPSS 0.003 · 23 %ileEUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.31% (23rd) EPSS
CVSS 10 · critical
Is it mine?
3 products
Check your exposure
Who says so?
4 sources
cnnvd · enisa_euvd · osv · nvd

EPSS · scored 2026-10-28

PraisonAI is a multi-agent teams system. Prior to 1.5.113, the Action Orchestrator feature contains a Path Traversal vulnerability that allows an attacker (or compromised agent) to write to arbitrary files outside of the configured workspace directory. By supplying relative path segments (../) in the target path, malicious actions can overwrite sensitive system files or drop executable payloads on the host. This vulnerability is fixed in 1.5.113.

01

cvss

Technical severity, 0–10. One row per scoring source.

10.0
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.110criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.8
v3.19criticalCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:Hsecondary · ENISA EU
v3.19criticalCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:Hsecondary · security-advisories@github.comexploitability 2.5 · impact 5.8
v3.19criticalCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:Hsecondary · OSV
v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)
02

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: poc · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

04

affected products (3)

Products and version ranges known to be affected.

05

advisories (2)

Vendor and ecosystem advisories describing this.

  • GHSA-jfxc-v5g9-38xrPraisonAI Vulnerable to Arbitrary File Write / Path Traversal in Action Orchestrator2026-04-06ghsa · osvUS

    The Action Orchestrator feature contains a Path Traversal vulnerability that allows an attacker (or compromised agent) to write to arbitrary files outside of the configured workspace directory. By supplying relative path segments (`../`) in the target path, malicious actions can overwrite sensitive system files or drop executable payloads on the host. ### Details Location: `src/praisonai/praisonai/cli/features/action_orchestrator.py` (Lines 402, 409, 423) Vulnerable Code snippet: ```python target = workspace / step.target ``` In the `_apply_step` method, paths are constructed by concatenating the `workspace` path with a user-supplied `step.target` string: `target = workspace / step.target`. The code fails to resolve and validate that the final absolute path remains within the bounds of the `workspace` directory. When processing `FILE_CREATE` or `FILE_EDIT` actions, this flaw permits arbitrary file modification. ### PoC Construct a malicious `ActionStep` payload with path traversal characters: ```python from praisonai.cli.features.action_orchestrator import ActionStep, ActionType, ActionStatus # Payload targeting a file outside the workspace step = ActionStep( id="test_traversal", action_type=ActionType.FILE_CREATE, description="Malicious file write", target="../../../../../../../tmp/orchestrator_pwned.txt", params={"content": "pwned"}, status=ActionStatus.APPROVED ) # When the orchestrator applies this step, it writes to the traversed path # _apply_step(step) ``` ### Impact This is an Arbitrary File Write vulnerability. Anyone running the Action Orchestrator to apply modifications is vulnerable. A malicious prompt could trick the agent into generating a plan that overwrites critical files (e.g., `~/.ssh/authorized_keys`, `.bashrc`) leading to Remote Code Execution (RCE) or system corruption.

  • PYSEC-2026-475PraisonAI Vulnerable to Arbitrary File Write / Path Traversal in Action Orchestrator2026-06-29vendor · osvUS

    The Action Orchestrator feature contains a Path Traversal vulnerability that allows an attacker (or compromised agent) to write to arbitrary files outside of the configured workspace directory. By supplying relative path segments (`../`) in the target path, malicious actions can overwrite sensitive system files or drop executable payloads on the host. ### Details Location: `src/praisonai/praisonai/cli/features/action_orchestrator.py` (Lines 402, 409, 423) Vulnerable Code snippet: ```python target = workspace / step.target ``` In the `_apply_step` method, paths are constructed by concatenating the `workspace` path with a user-supplied `step.target` string: `target = workspace / step.target`. The code fails to resolve and validate that the final absolute path remains within the bounds of the `workspace` directory. When processing `FILE_CREATE` or `FILE_EDIT` actions, this flaw permits arbitrary file modification. ### PoC Construct a malicious `ActionStep` payload with path traversal characters: ```python from praisonai.cli.features.action_orchestrator import ActionStep, ActionType, ActionStatus # Payload targeting a file outside the workspace step = ActionStep( id="test_traversal", action_type=ActionType.FILE_CREATE, description="Malicious file write", target="../../../../../../../tmp/orchestrator_pwned.txt", params={"content": "pwned"}, status=ActionStatus.APPROVED ) # When the orchestrator applies this step, it writes to the traversed path # _apply_step(step) ``` ### Impact This is an Arbitrary File Write vulnerability. Anyone running the Action Orchestrator to apply modifications is vulnerable. A malicious prompt could trick the agent into generating a plan that overwrites critical files (e.g., `~/.ssh/authorized_keys`, `.bashrc`) leading to Remote Code Execution (RCE) or system corruption.

06

also known as (6)

Other names and identifiers for this entity.

07

sources

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published 2026-04-07modified 2026-10-26
08

references (4)

External citations — patches, advisories, analysis.

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