CVE-2026-33422

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{"affected": [{"affectedData": [{"product": "discourse", "vendor": "discourse", "versions": [{"status": "affected", "version": ">= 2026.1.0-latest, < 2026.1.2"}, {"status": "affected", "version": ">= 2026.2.0-latest, < 2026.2.1"}, {"status": "affected", "version": "= 2026.3.0-latest"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*", "matchCriteriaId": "4BE96625-3609-410C-B41E-4A824C1A57C0", "versionEndExcluding": "2026.1.2", "versionStartIncluding": "2026.1.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*", "matchCriteriaId": "FD31CF04-CF2F-4FB9-8880-9243BC7671A7", "versionEndExcluding": "2026.2.1", "versionStartIncluding": "2026.2.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:discourse:discourse:2026.3.0:*:*:*:latest:*:*:*", "matchCriteriaId": "E3FE9277-4F6B-4FD0-991F-F0FB8D226E1C", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "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, the `ip_address` of a flagged user is exposed to any user who can access the review queue, including users who should not be able to see IP addresses. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. No known workarounds are available."}, {"lang": "es", "value": "Discourse es una plataforma de discusi\u00f3n de c\u00f3digo abierto. Antes de las versiones 2026.3.0-latest.1, 2026.2.1 y 2026.1.2, la 'ip_address' de un usuario marcado est\u00e1 expuesta a cualquier usuario que puede acceder a la cola de revisi\u00f3n, incluyendo a usuarios que no deber\u00edan poder ver direcciones IP. Las versiones 2026.3.0-latest.1, 2026.2.1 y 2026.1.2 contienen un parche. No hay soluciones alternativas conocidas disponibles."}], "id": "CVE-2026-33422", "lastModified": "2026-06-17T10:37:28.280", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 3.5, "baseSeverity": "LOW", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.1, "impactScore": 1.4, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-33422", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-24T02:10:12.302232Z", "version": "2.0.3"}}]}, "published": "2026-03-20T23:16:47.830", "references": [{"source": "security-advisories@github.com", "tags": ["Vendor Advisory"], "url": "https://github.com/discourse/discourse/security/advisories/GHSA-x32r-45vg-vm84"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-200"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[2026.1.0-latest,2026.1.2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[2026.2.0-latest,2026.2.1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2026.3.0-latest"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "discourse", "source": "cna", "vendor": "discourse"}, "product": "discourse", "vendor": "discourse"}], "analysis": {"en": {"generated_at": "2026-03-24T22:24:03.124972+00:00", "value": {"mitigation_remediation": ["Apply the official patch to all Discourse instances, upgrading to 2026.3.0\u2011latest.1 or newer, 2026.2.1 or 2026.1.2.", "Verify that the review queue interface no longer exposes IP addresses; test with a non\u2011privileged account.", "If an immediate update is not feasible, restrict or disable access to the review queue for non\u2011admin users through Discourse permission settings and audit the changes."], "summary": {"action": "Immediate Patch", "impact": "Unauthorized disclosure of IP addresses of flagged users"}, "threat_synthesis": {"affected_systems": "The flaw affects the Discourse open\u2011source forum platform on versions older than 2026.3.0\u2011latest.1, 2026.2.1, and 2026.1.2. All instances running those older releases were vulnerable; the patch is included in the mentioned newer versions. No specific hardware or operating system requirements are stated, and the issue is confined to the Discourse software itself.", "description_and_impact": "Discourse\u2019s review queue interface inadvertently exposed the IP address of flagged users to any user who could access the queue, including roles that should not see such information. This allows an attacker to learn the precise source address of a user who was flagged for moderation, potentially facilitating user profiling or targeted abuse. The vulnerability falls under the confidentiality vulnerability class (CWE\u2011200) and does not grant any additional control or denial of service capabilities.", "risk_and_exploitability": "The vulnerability carries a CVSS score of 3.5, indicating low to moderate overall risk, and an EPSS score lower than 1\u202f%, suggesting a very low probability of exploitation in the wild. The issue is not in the CISA KEV catalog. Based on the description, the likely attack vector is an authenticated user with access to the review queue, which may include moderators or users who have inadvertently been granted higher visibility privileges. No external code execution or privilege escalation is possible; the impact is limited to the accidental disclosure of the IP address."}}}}, "created": "2026-03-23T09:51:54.094406+00:00", "updated": "2026-03-25T14:33:53.599873+00:00", "vendors": ["discourse", "discourse$PRODUCT$discourse"]}