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CVE-2026-33046

CVE-2026-33046 · Indico discloses local files resulting in Remote Code Execution through LaTeX injection

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 7.7 · High · EPSS 0.8% · Fix available

Published
Updated

Stack: python

Affected products and versions

  • indico

    Versions
    • < 3.3.12: Affected

    No fix published

  • indico PyPI

    Versions
    • 0.98-rc1
    • 0.98.0
    • 0.98.1
    • 0.98.2
    • 0.99
    • 1.0
    • 1.1
    • 1.1.1
    • 1.1.2
    • 1.2
    • 1.2.1
    • 1.2.1rc10
    • 1.2.1rc11
    • 1.2.1rc2
    • 1.2.1rc4
    • 1.2.1rc5
    • 1.2.1rc6
    • 1.2.1rc7
    • 1.2.1rc9
    • 1.2.2
    • 1.2.2rc1
    • 1.9.11.dev10
    • 1.9.11.dev11
    • 1.9.11.dev12
    • 1.9.11.dev13
    • 1.9.11.dev14
    • 1.9.11.dev15
    • 1.9.11.dev16
    • 1.9.11.dev17
    • 1.9.11.dev3
    • 1.9.11.dev4
    • 1.9.11.dev6
    • 1.9.11.dev7
    • 1.9.11.dev8
    • 1.9.11.dev9
    • 2.0
    • 2.0.1
    • 2.0.2
    • 2.0.3
    • 2.0a1
    • 2.0rc1
    • 2.0rc2
    • 2.1
    • 2.1.1
    • 2.1.10
    • 2.1.11
    • 2.1.2
    • 2.1.3
    • 2.1.4
    • 2.1.5
    • 2.1.6
    • 2.1.7
    • 2.1.8
    • 2.1.9
    • 2.2
    • 2.2.1
    • 2.2.2
    • 2.2.3
    • 2.2.4
    • 2.2.5
    • 2.2.6
    • 2.2.7
    • 2.2.8
    • 2.3
    • 2.3.1
    • 2.3.2
    • 2.3.3
    • 2.3.4
    • 2.3.5
    • 3.0
    • 3.0.1
    • 3.0.2
    • 3.0.3
    • 3.0rc1
    • 3.0rc2
    • 3.1
    • 3.1.1
    • 3.2
    • 3.2.1
    • 3.2.2
    • 3.2.3
    • 3.2.4
    • 3.2.5
    • 3.2.6
    • 3.2.7
    • 3.2.8
    • 3.2.9
    • 3.3
    • 3.3.1
    • 3.3.10
    • 3.3.11
    • 3.3.2
    • 3.3.3
    • 3.3.4
    • 3.3.5
    • 3.3.6
    • 3.3.7
    • 3.3.8
    • 3.3.9
    Affected ranges
    • ECOSYSTEM: < 3.3.12

    Update to 3.3.12

Original sources

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