CVE-2026-33046

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{"affected": [{"affectedData": [{"product": "indico", "vendor": "indico", "versions": [{"status": "affected", "version": "< 3.3.12"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:cern:indico:*:*:*:*:*:*:*:*", "matchCriteriaId": "CC85A72D-556A-4CB4-930A-68C3B1B9F8B0", "versionEndExcluding": "3.3.12", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. In versions prior to 3.3.12, due to vulnerabilities in TeXLive and obscure LaTeX syntax that allowed circumventing Indico's LaTeX sanitizer, it is possible to use specially-crafted LaTeX snippets which can read local files or execute code with the privileges of the user running Indico on the server. Note that if server-side LaTeX rendering is not in use (ie `XELATEX_PATH` was not set in `indico.conf`), this vulnerability does not apply. It is recommended to update to Indico 3.3.12 as soon as possible. It is also strongly recommended to enable the containerized LaTeX renderer (using `podman`), which isolates it from the rest of the system. As a workaround, remove the `XELATEX_PATH` setting from `indico.conf` (or comment it out or set it to `None`) and restart the `indico-uwsgi` and `indico-celery` services to disable LaTeX functionality."}, {"lang": "es", "value": "Indico es un sistema de gesti\u00f3n de eventos que utiliza Flask-Multipass, un sistema de autenticaci\u00f3n multi-backend para Flask. En versiones anteriores a la 3.3.12, debido a vulnerabilidades en TeXLive y sintaxis LaTeX oscura que permit\u00eda eludir el saneador LaTeX de Indico, es posible utilizar fragmentos LaTeX especialmente dise\u00f1ados que pueden leer archivos locales o ejecutar c\u00f3digo con los privilegios del usuario que ejecuta Indico en el servidor. Tenga en cuenta que si la renderizaci\u00f3n LaTeX del lado del servidor no est\u00e1 en uso (es decir, 'XELATEX_PATH' no se configur\u00f3 en 'indico.conf'), esta vulnerabilidad no se aplica. Se recomienda actualizar a Indico 3.3.12 lo antes posible. Tambi\u00e9n se recomienda encarecidamente habilitar el renderizador LaTeX en contenedores (utilizando 'podman'), que lo a\u00edsla del resto del sistema. Como soluci\u00f3n alternativa, elimine la configuraci\u00f3n de 'XELATEX_PATH' de 'indico.conf' (o com\u00e9ntela o config\u00farela como 'None') y reinicie los servicios 'indico-uwsgi' e 'indico-celery' para deshabilitar la funcionalidad LaTeX."}], "id": "CVE-2026-33046", "lastModified": "2026-06-17T10:36:51.863", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 7.7, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/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", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-33046", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-03-24T13:42:10.312627Z", "version": "2.0.3"}}]}, "published": "2026-03-23T23:17:12.520", "references": [{"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/indico/indico/commit/0adb70f0ed66e129361d447868f5f3eb90dc5e96"}, {"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/indico/indico/commit/1dbb12525b3de14229bf4d1ae192988068f975f6"}, {"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/indico/indico/commit/5f24d23ce9c4b0e4b68b3d0b58987a948fc57c8a"}, {"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/indico/indico/commit/fb169ced710c30cf792ce4b9f48688db0633cfd8"}, {"source": "security-advisories@github.com", "tags": ["Product", "Release Notes"], "url": "https://github.com/indico/indico/releases/tag/v3.3.12"}, {"source": "security-advisories@github.com", "tags": ["Mitigation", "Patch", "Vendor Advisory"], "url": "https://github.com/indico/indico/security/advisories/GHSA-rm2q-f7jv-3cfp"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}, {"lang": "en", "value": "CWE-78"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,3.3.12)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "indico", "source": "cna", "vendor": "indico"}, "product": "indico", "vendor": "indico"}], "analysis": {"en": {"generated_at": "2026-03-24T23:21:07.841657+00:00", "value": {"mitigation_remediation": ["Upgrade Indico to version 3.3.12 or later.", "Enable the containerized LaTeX renderer using podman to isolate processing.", "As a temporary workaround, remove or comment out the XELATEX_PATH setting in indico.conf and restart the indico-uwsgi and indico-celery services to disable LaTeX rendering."], "summary": {"action": "Immediate Patch", "impact": "Remote Code Execution via LaTeX injection"}, "threat_synthesis": {"affected_systems": "Indico, the event management platform used by CERN. Versions earlier than 3.3.12 are affected. The vulnerability is tied to the TeXLive integration and the LaTeX sanitizer in these releases.", "description_and_impact": "A flaw in the LaTeX sanitizer of Indico allows specially crafted LaTeX snippets to bypass security checks and access local files or execute code with the privileges of the process running the server. This can lead to full system compromise if the server\u2019s LaTeX renderer is enabled. If the server is not configured to run server\u2011side LaTeX (XELATEX_PATH unset), this vulnerability does not apply.", "risk_and_exploitability": "The CVSS score of 7.7 reflects a high severity RCE. The EPSS score of less than 1% indicates a low probability of widespread exploitation, and the vulnerability is not listed on the CISA KEV list. Attack likely involves providing a malicious LaTeX payload through the web interface, which the rendering engine processes and executes on the server, allowing an attacker to read files or run arbitrary commands with process privileges."}}}}, "created": "2026-03-24T10:30:04.065156+00:00", "updated": "2026-03-25T20:36:11.750201+00:00", "vendors": ["indico", "indico$PRODUCT$indico"]}