CVE-2026-47393

PraisonAI `deploy --type api` emits a Flask server with authentication disabled by default

9.8 CriticalFix available

PraisonAI is a multi-agent teams system. CVE-2026-44338 (GHSA-6rmh-7xcm-cpxj) documents that PraisonAI ships a code-generator (praisonai.deploy.api.generate_api_server_code) that emits a Flask API server with authentication disabled by default. Users who follow the documented quickstart (praisonai deploy --type api) get a server that binds to 0.0.0.0 per the recommended sample YAML, exposes /chat and /agents endpoints, runs praisonai.run() on user-supplied JSON input — LLM orchestration with the API key materials present in the process environment, and does not require any authentication. Versions prior to 4.6.40 still ship the generator with auth_enabled defaulting to False. The fix shape is opt-in via APIConfig(auth_enabled=True, auth_token=...). Version 4.6.40 fixes the issue.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.58%Up 0.5 points since Jun 12, 2026

What each source reports

CVE List Score used 9.8

PraisonAI `deploy --type api` emits a Flask server with authentication disabled by default

Record: CVE-2026-47393
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-306, CWE-1188
Updated: 2026-11-02

EUVDEUVD-2026-46297 9.8

Record: EUVD-2026-46297
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-8444-4fhq-fxpq 9.8

PraisonAI `deploy --type api` emits a Flask server with authentication disabled by default

Summary

CVE-2026-44338 (GHSA-6rmh-7xcm-cpxj) documents that PraisonAI ships a code-generator (praisonai.deploy.api.generate_api_server_code) that emits a Flask API server with authentication disabled by default. Users who follow the documented quickstart (praisonai deploy --type api) get a server that:

binds to 0.0.0.0 per the recommended sample YAML
exposes /chat and /agents endpoints
runs praisonai.run() on user-supplied JSON input — LLM orchestration with the API key materials present in the process environment
does not require any authentication

The PyPI wheel praisonai==4.6.33 (current @latest) still ships the generator with auth_enabled defaulting to False. The fix shape is opt-in via APIConfig(auth_enabled=True, auth_token=...).

Details

Anchor (file:line:symbol)

Vulnerable artifact: praisonai==4.6.33 on PyPI.
Defaults: praisonai/deploy/models.py:29 — auth_enabled: bool = Field(default=False, ...); praisonai/deploy/models.py:30 — auth_token: Optional[str] = Field(default=None, ...).
Generator: praisonai/deploy/api.py:40 — AUTH_ENABLED = {config.auth_enabled}; api.py:41 — AUTH_TOKEN = {repr(config.auth_token)}; api.py:43-49 — def check_auth(): if not AUTH_ENABLED: return True.
CLI entry: documented as praisonai deploy --type api (vendor README); produces the generator output above with no flag required to suppress the warning, because no warning is emitted.

Vulnerable code (verbatim from installed wheel)

# praisonai/deploy/models.py (praisonai==4.6.33)
class APIConfig(BaseModel):
    host: str = Field(default="127.0.0.1", description="Server host")
    port: int = Field(default=8005, description="Server port")
    cors_enabled: bool = Field(default=True, description="Enable CORS")
    auth_enabled: bool = Field(default=False, description="Enable authentication")     # line 29
    auth_token: Optional[str] = Field(default=None, description="Authentication token") # line 30

# praisonai/deploy/api.py (praisonai==4.6.33)
code = f\'\'\'...
# Authentication
AUTH_ENABLED = {config.auth_enabled}      # False by default
AUTH_TOKEN   = {repr(config.auth_token)}  # None by default

def check_auth():
    if not AUTH_ENABLED:
        return True                       # short-circuit, accept all
    token = request.headers.get(\'Authorization\', \'\').replace(\'Bearer \', \'\')
    return token == AUTH_TOKEN
...
\'\'\'

A default invocation of the deploy command emits a server whose check_auth() short-circuits to True and accepts unauthenticated /chat, /agents POSTs.

PoC

#!/usr/bin/env python3
"""
legend-c420 PoC - PraisonAI 4.6.33 generates Flask API server with auth
disabled by default. Class H sibling of CVE-2026-44338.

Phase 1: reflect on praisonai.deploy.models.APIConfig defaults.
Phase 2: call generate_api_server_code(default config) and assert the
         emitted source contains AUTH_ENABLED = False and the
         short-circuit return.
Phase 3: re-run with auth_enabled=True, auth_token='s3cret-bearer-value'
         and confirm the emitted source flips to the secure shape.

Exit code 0 = PASS = vulnerable defaults confirmed.
"""
import sys, traceback

def phase1_dataclass_defaults():
    print("PHASE 1 - praisonai.deploy.models.APIConfig default values")
    from praisonai.deploy.models import APIConfig
    cfg = APIConfig()
    checks = [
        ("auth_enabled", cfg.auth_enabled, False),
        ("auth_token",   cfg.auth_token,   None),
    ]
    for name, observed, expected in checks:
        ok = observed == expected
        mark = "VULNERABLE" if name in ("auth_enabled","auth_token") and ok else "ok"
        print(f"  {name:14s} = {observed!r:18s}  (expected {expected!r})  [{mark}]")
        assert ok
    print("  >> APIConfig defaults reproduce the CVE-2026-44338 shape.")

def phase2_default_generator_emits_unauth():
    print("PHASE 2 - generate_api_server_code(default…

Record: GHSA-8444-4fhq-fxpq
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-306, CWE-1188
Updated: 2026-11-02

NVD 9.8

Record: CVE-2026-47393
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-306, CWE-1188
Updated: 2026-11-02

OSV 9.8

PraisonAI `deploy --type api` emits a Flask server with authentication disabled by default

Record: CVE-2026-47393
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-1188, CWE-306
Updated: 2026-11-02

OSVGHSA-8444-4fhq-fxpq 9.8

PraisonAI `deploy --type api` emits a Flask server with authentication disabled by default

Summary

binds to 0.0.0.0 per the recommended sample YAML
exposes /chat and /agents endpoints
runs praisonai.run() on user-supplied JSON input — LLM orchestration with the API key materials present in the process environment
does not require any authentication

The PyPI wheel praisonai==4.6.33 (current @latest) still ships the generator with auth_enabled defaulting to False. The fix shape is opt-in via APIConfig(auth_enabled=True, auth_token=...).

Details

Anchor (file:line:symbol)

Vulnerable artifact: praisonai==4.6.33 on PyPI.
Defaults: praisonai/deploy/models.py:29 — auth_enabled: bool = Field(default=False, ...); praisonai/deploy/models.py:30 — auth_token: Optional[str] = Field(default=None, ...).
Generator: praisonai/deploy/api.py:40 — AUTH_ENABLED = {config.auth_enabled}; api.py:41 — AUTH_TOKEN = {repr(config.auth_token)}; api.py:43-49 — def check_auth(): if not AUTH_ENABLED: return True.
CLI entry: documented as praisonai deploy --type api (vendor README); produces the generator output above with no flag required to suppress the warning, because no warning is emitted.

Vulnerable code (verbatim from installed wheel)

# praisonai/deploy/models.py (praisonai==4.6.33)
class APIConfig(BaseModel):
    host: str = Field(default="127.0.0.1", description="Server host")
    port: int = Field(default=8005, description="Server port")
    cors_enabled: bool = Field(default=True, description="Enable CORS")
    auth_enabled: bool = Field(default=False, description="Enable authentication")     # line 29
    auth_token: Optional[str] = Field(default=None, description="Authentication token") # line 30

# praisonai/deploy/api.py (praisonai==4.6.33)
code = f\'\'\'...
# Authentication
AUTH_ENABLED = {config.auth_enabled}      # False by default
AUTH_TOKEN   = {repr(config.auth_token)}  # None by default

def check_auth():
    if not AUTH_ENABLED:
        return True                       # short-circuit, accept all
    token = request.headers.get(\'Authorization\', \'\').replace(\'Bearer \', \'\')
    return token == AUTH_TOKEN
...
\'\'\'

A default invocation of the deploy command emits a server whose check_auth() short-circuits to True and accepts unauthenticated /chat, /agents POSTs.

PoC

#!/usr/bin/env python3
"""
legend-c420 PoC - PraisonAI 4.6.33 generates Flask API server with auth
disabled by default. Class H sibling of CVE-2026-44338.

Phase 1: reflect on praisonai.deploy.models.APIConfig defaults.
Phase 2: call generate_api_server_code(default config) and assert the
         emitted source contains AUTH_ENABLED = False and the
         short-circuit return.
Phase 3: re-run with auth_enabled=True, auth_token='s3cret-bearer-value'
         and confirm the emitted source flips to the secure shape.

Exit code 0 = PASS = vulnerable defaults confirmed.
"""
import sys, traceback

def phase1_dataclass_defaults():
    print("PHASE 1 - praisonai.deploy.models.APIConfig default values")
    from praisonai.deploy.models import APIConfig
    cfg = APIConfig()
    checks = [
        ("auth_enabled", cfg.auth_enabled, False),
        ("auth_token",   cfg.auth_token,   None),
    ]
    for name, observed, expected in checks:
        ok = observed == expected
        mark = "VULNERABLE" if name in ("auth_enabled","auth_token") and ok else "ok"
        print(f"  {name:14s} = {observed!r:18s}  (expected {expected!r})  [{mark}]")
        assert ok
    print("  >> APIConfig defaults reproduce the CVE-2026-44338 shape.")

def phase2_default_generator_emits_unauth():
    print("PHASE 2 - generate_api_server_code(default…

Record: GHSA-8444-4fhq-fxpq
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-1188, CWE-306
Updated: 2026-11-02

OSVPYSEC-2026-465 9.8

PraisonAI `deploy --type api` emits a Flask server with authentication disabled by default

Summary

binds to 0.0.0.0 per the recommended sample YAML
exposes /chat and /agents endpoints
runs praisonai.run() on user-supplied JSON input — LLM orchestration with the API key materials present in the process environment
does not require any authentication

The PyPI wheel praisonai==4.6.33 (current @latest) still ships the generator with auth_enabled defaulting to False. The fix shape is opt-in via APIConfig(auth_enabled=True, auth_token=...).

Details

Anchor (file:line:symbol)

Vulnerable artifact: praisonai==4.6.33 on PyPI.
Defaults: praisonai/deploy/models.py:29 — auth_enabled: bool = Field(default=False, ...); praisonai/deploy/models.py:30 — auth_token: Optional[str] = Field(default=None, ...).
Generator: praisonai/deploy/api.py:40 — AUTH_ENABLED = {config.auth_enabled}; api.py:41 — AUTH_TOKEN = {repr(config.auth_token)}; api.py:43-49 — def check_auth(): if not AUTH_ENABLED: return True.
CLI entry: documented as praisonai deploy --type api (vendor README); produces the generator output above with no flag required to suppress the warning, because no warning is emitted.

Vulnerable code (verbatim from installed wheel)

# praisonai/deploy/models.py (praisonai==4.6.33)
class APIConfig(BaseModel):
    host: str = Field(default="127.0.0.1", description="Server host")
    port: int = Field(default=8005, description="Server port")
    cors_enabled: bool = Field(default=True, description="Enable CORS")
    auth_enabled: bool = Field(default=False, description="Enable authentication")     # line 29
    auth_token: Optional[str] = Field(default=None, description="Authentication token") # line 30

 # praisonai/deploy/api.py (praisonai==4.6.33)
code = f\'\'\'...
# Authentication
 AUTH_ENABLED = {config.auth_enabled}      # False by default
AUTH_TOKEN   = {repr(config.auth_token)}  # None by default

def check_auth():
    if not AUTH_ENABLED:
        return True                       # short-circuit, accept all
    token = request.headers.get(\'Authorization\', \'\').replace(\'Bearer \', \'\')
    return token == AUTH_TOKEN
...
\'\'\'

A default invocation of the deploy command emits a server whose check_auth() short-circuits to True and accepts unauthenticated /chat, /agents POSTs.

PoC

#!/usr/bin/env python3
"""
legend-c420 PoC - PraisonAI 4.6.33 generates Flask API server with auth
disabled by default. Class H sibling of CVE-2026-44338.

Phase 1: reflect on praisonai.deploy.models.APIConfig defaults.
Phase 2: call generate_api_server_code(default config) and assert the
         emitted source contains AUTH_ENABLED = False and the
         short-circuit return.
Phase 3: re-run with auth_enabled=True, auth_token='s3cret-bearer-value'
         and confirm the emitted source flips to the secure shape.

Exit code 0 = PASS = vulnerable defaults confirmed.
"""
import sys, traceback

def phase1_dataclass_defaults():
    print("PHASE 1 - praisonai.deploy.models.APIConfig default values")
    from praisonai.deploy.models import APIConfig
    cfg = APIConfig()
    checks = [
        ("auth_enabled", cfg.auth_enabled, False),
        ("auth_token",   cfg.auth_token,   None),
    ]
    for name, observed, expected in checks:
        ok = observed == expected
        mark = "VULNERABLE" if name in ("auth_enabled","auth_token") and ok else "ok"
        print(f"  {name:14s} = {observed!r:18s}  (expected {expected!r})  [{mark}]")
        assert ok
    print("  >> APIConfig defaults reproduce the CVE-2026-44338 shape.")

def phase2_default_generator_emits_unauth():
    print("PHASE 2 -…

Record: PYSEC-2026-465
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

Affected products

mervinpraison praisonai

Affected packages

Affected packages
Package	Affected	Fixed
`praisonai` PyPI	through 4.6.39	4.6.40
`praisonai` PyPI	before 4.6.40, plus listed versions 0.0.10.0.100.0.110.0.120.0.13 Show 45 moreShow less 0.0.140.0.150.0.160.0.170.0.180.0.190.0.20.0.200.0.210.0.220.0.230.0.240.0.250.0.260.0.270.0.280.0.290.0.30.0.300.0.310.0.320.0.330.0.340.0.350.0.360.0.370.0.380.0.390.0.40.0.400.0.410.0.420.0.430.0.440.0.450.0.460.0.470.0.480.0.490.0.50.0.500.0.520.0.530.0.540.0.55	4.6.40

History

History
Recorded	Changed	Sources
Nov 2, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-47393 is a critical vulnerability (CVSS 9.8) in Mervinpraison Praisonai, published May 29, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.58%, the 48th percentile. Fixed in praisonai 4.6.40.

References

This page doesn't list everything

Left out here: 681 versions and the rest of 3 source descriptions. The JSON record has them.