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PraisonAI CVE-2026-55533

| EUVDEUVD-2026-65523 HIGH
Improper Authentication (CWE-287)
2026-08-25 GitHub_M GHSA-gfq8-hmph-9gjv
8.2
CVSS 3.1 · Vendor: GitHub_M
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Discover externally-bound PraisonAI Recipe server
  2. Delivery
    Confirm auth mode set without corresponding secret
  3. Exploit
    Send unauthenticated POST /v1/recipes/run
  4. Execution
    Execute arbitrary multi-agent recipe on server
  5. Impact
    Access internal tools or data via agent runtime

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Authentication mechanism validation
MITRE ATT&CK

2 techniques across 2 tactics: Defense Evasion, Initial Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires three concurrent conditions: (1) The Recipe server is started with --auth api-key or --auth jwt (i.e., the operator intends to enforce authentication), (2) the corresponding secret is absent - neither the --api-key CLI argument nor PRAISONAI_API_KEY environment variable is set for api-key mode, or neither --jwt-secret nor PRAISONAI_JWT_SECRET is set for JWT mode, AND (3) the server is bound to a non-localhost interface (e.g., --host 0.0.0.0), making it reachable from the network. Deployments where the secret IS correctly supplied are not affected. The CVSS PR:N reflects that the attacker requires no credentials; however, the vulnerable state itself is operator-introduced via misconfiguration, not the default out-of-box state. Local-only deployments (127.0.0.1 binding) are not remotely exploitable even when misconfigured.

Impact

The CVSS 3.1 vector AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N scores 8.2, reflecting network-reachable, zero-complexity, unauthenticated exploitation with high integrity impact - consistent with the ability to trigger arbitrary multi-agent recipe execution. However, real-world risk is conditional: only deployments where the operator has set an auth mode but omitted the corresponding secret are exploitable; instances that correctly supply PRAISONAI_API_KEY or PRAISONAI_JWT_SECRET are unaffected regardless of version. No CISA KEV listing and no EPSS data were provided in the input, and no public exploit code is documented. Risk is therefore highest in automated or containerized deployments where auth is configured via CLI flags without environment variable secrets - a plausible DevOps misconfiguration. The high I:H score is credible given recipe endpoints control multi-agent task execution. The low C:L component reflects possible incidental data exposure through recipe outputs rather than direct credential theft.

Exploit ScenarioDerived

An attacker scans for PraisonAI Recipe servers listening on non-localhost interfaces (e.g., port 8080 exposed via cloud security group misconfiguration). They confirm the server is running with --auth api-key but no PRAISONAI_API_KEY by sending an unauthenticated POST /v1/recipes/run with a crafted recipe payload and observing a 200 response rather than a 401. With unauthenticated execution access, they submit recipes that invoke internal tools or exfiltrate data accessible to the agent runtime. No public POC is documented, but the exploit path is fully described in the vendor's own security advisory.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.3% exploitation probability (EPSS)

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AnalysisAIv1 – Aug 25, 2026

Authentication fail-open in PraisonAI's Recipe HTTP server allows unauthenticated remote attackers to invoke recipe execution endpoints despite authentication being nominally enabled. Versions prior to 4.6.58 of the pip package are affected: when the server is started with --auth api-key or --auth jwt but the corresponding PRAISONAI_API_KEY or PRAISONAI_JWT_SECRET environment variable is absent, create_auth_middleware() silently bypasses all authentication checks. The CLI safety check that blocks external binding only verifies auth mode is not 'none', failing to detect this secret-absent misconfiguration, leaving POST /v1/recipes/run, /v1/recipes/stream, and /v1/recipes endpoints fully open to unauthenticated callers. No active exploitation is confirmed (not in CISA KEV); vendor-released patch is available in v4.6.58.

RemediationAI

Upgrade to PraisonAI v4.6.58 or later via pip install --upgrade praisonai>=4.6.58; this is the vendor-confirmed fix (https://github.com/MervinPraison/PraisonAI/releases/tag/v4.6.58, patch commit https://github.com/MervinPraison/PraisonAI/commit/2f9677abb2ea68eab864ee8b6a828fd0141612e1). Until patching is possible, two compensating controls reduce exposure: (1) Ensure PRAISONAI_API_KEY (for api-key mode) or PRAISONAI_JWT_SECRET (for JWT mode) is explicitly set in the environment before starting the Recipe server - this prevents the fail-open path from triggering, though it does not fix the underlying code defect. (2) Restrict the Recipe server to localhost binding (--host 127.0.0.1) and place it behind an authenticated reverse proxy for any external access; this eliminates remote unauthenticated reachability. Note that control (1) alone is fragile if the environment variable is later unset or cleared by deployment automation.

Affected VersionsENISA

PraisonAI < 4.6.58

Affected Packages

pypi praisonai fix: 4.6.58

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in pypi

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

PraisonAI (CPE: cpe:2.3:a:mervinpraison:praisonai:*:*:*:*:*:*:*:*) is a Python-based multi-agent orchestration framework exposing a Recipe HTTP server via src/praisonai/praisonai/recipe/serve.py. The root cause is CWE-287 (Improper Authentication): the create_auth_middleware() function resolves the expected API key as api_key or os.environ.get('PRAISONAI_API_KEY') and the JWT secret similarly; if neither config nor environment supplies a value, the middleware executes return await call_next(request) - a classic fail-open pattern. The middleware is still attached to the server when auth_type is not 'none', giving operators a false sense that authentication is enforced. The CLI path (cmd_serve in cli/features/recipe.py) only guards against --host 0.0.0.0 --auth none, so an operator starting the server with --host 0.0.0.0 --auth api-key but no key passes the safety check and exposes the server unauthenticated to any network caller.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (GitHub_M) PRIMARY 8.2 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
vuln.today AI 8.2 HIGH

AV:N and PR:N confirmed by network-reachable unauthenticated endpoint; AC:L because exploitation is trivially simple once the misconfigured target is found; I:H for arbitrary recipe execution capability; C:L for incidental data exposure via recipe outputs; A:N as no availability impact is described.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
4.0 AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (GitHub_M).

CVSS VectorVendor: GitHub_M

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
High
Availability
None

Lifecycle Timeline

2
Patch available
Aug 25, 2026 - 17:17 EUVD
CVE Published
Aug 25, 2026 - 15:15 cve.org
HIGH 8.2

DescriptionCVE.org

PraisonAI is a multi-agent teams system. Prior to praisonai 4.6.58, create_auth_middleware() allows requests when auth=api-key lacks PRAISONAI_API_KEY or JWT authentication lacks PRAISONAI_JWT_SECRET. An externally bound Recipe server can therefore accept unauthenticated POST /v1/recipes/run requests despite authentication being enabled. This issue is fixed in version 4.6.58.

Executive ViewAI

Why It Matters

PraisonAI's Recipe HTTP server (versions prior to 4.6.58) contains an authentication bypass vulnerability allowing unauthenticated remote attackers to execute recipes when authentication flags are enabled but required secrets are absent. Organizations using API key or JWT authentication may have their recipe endpoints fully exposed to unauthorized invocation, creating risk of unauthorized workflow execution and potential data compromise.

Business Impact: High
Compensating Controls

Apply vendor patch: upgrade to v4.6.58 or later.

Threat Intelligence Overview

EPSS Score
0.3%
Top 74% exploitable
Prevalence
Low
niche multi-agent AI framework, limited enterprise production footprint
Threat Intel
1
1 sources
Exploit
POC
Public exploit code exists
Data Quality
6 sources
Confidence: High
EUVD NVD CVE.org EPSS Vulnrichment GHSA GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC Yes
EPSS 0.3%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision
Out-of-Cycle
Exploitation
Poc
System Exposure· derived
Open
Automatable
Yes
Human Impact
High
Technical Impact
Partial

Priority Score

61
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +41
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

CVE-2026-57139 CRITICAL POC
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PraisonAI's TypeScript MCP server (npm package `praisonai`, versions 1.5.0 through 1.7.1) exposes an HTTP JSON-RPC trans

CVE-2026-55536 CRITICAL POC
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WebSocket origin-validation bypass in PraisonAI's Browser Server (praisonai/browser/server.py) before 4.6.58 lets an att

CVE-2026-55541 HIGH POC
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PraisonAI's `praisonai serve` subsystem (agents and unified modes) accepts an `--api-key` CLI flag that is parsed but ne

CVE-2026-55534 HIGH POC
8.6 Aug 25

Unauthenticated remote agent invocation in PraisonAI versions 4.6.34 through 4.6.57 allows any network-reachable caller

CVE-2026-55526 HIGH POC
8.5 Aug 25

SSRF protection bypass in PraisonAI's praisonaiagents library (all versions before 1.6.58) lets low-privileged users rou

CVE-2026-55528 HIGH POC
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Authentication bypass in PraisonAI's AgentServer component exposes all routes - /publish, /events, /info, /health - to u

CVE-2026-55522 HIGH POC
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Arbitrary Python code execution in PraisonAI's workflow include feature allows an attacker who controls a local recipe d

CVE-2026-55523 HIGH POC
7.7 Aug 05

Server-side request forgery in PraisonAI's web_crawl() function (versions 1.5.128-1.6.57) allows an attacker who can inf

CVE-2026-55532 HIGH POC
7.6 Aug 25

Cross-site request forgery against the PraisonAI MCP HTTP-stream transport allows unauthenticated remote attackers to ex

CVE-2026-44338 HIGH POC
7.3 May 08

Remote unauthenticated access to PraisonAI's legacy Flask API server allows attackers to execute configured agent workfl

CVE-2026-55527 HIGH POC
7.1 Aug 25

Path traversal in praisonaiagents prior to 1.6.58 allows a low-privileged caller to write arbitrary JSON files to any pr

CVE-2026-55535 MEDIUM POC
6.8 Aug 25

Server-Side Request Forgery in PraisonAI before version 4.6.58 allows unauthenticated remote attackers to force the appl

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