{"id":"CVE-2026-33046","aliases":["GHSA-rm2q-f7jv-3cfp","PYSEC-2026-2184"],"url":"https://o3.security/vulnerability/CVE-2026-33046","summary":"Indico discloses local files resulting in Remote Code Execution through LaTeX injection","details":"> [!NOTE]\n> If server-side LaTeX rendering is not in use (ie `XELATEX_PATH` was not set in `indico.conf`), this vulnerability does not apply.\n\n### Impact\nDue 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.\n\n### Patches\nIt is recommended to update to [Indico 3.3.12](https://github.com/indico/indico/releases/tag/v3.3.12) as soon as possible.\nSee [the docs](https://docs.getindico.io/en/stable/installation/upgrade/) for instructions on how to update.\n\nIt is also strongly recommended to enable the containerized LaTeX renderer (using `podman`), which isolates it from the rest of the system. See [the docs](https://docs.getindico.io/en/stable/installation/upgrade/#upgrading-to-3-3-12) for details - it is very easy and from now on the only recommended/supported way of using LaTeX.\n\n### Workarounds\nRemove 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.\n\n### For more information\nFor any questions or comments about this advisory:\n\n- Open a thread in [the forum](https://talk.getindico.io/)\n- Send an email to [indico-team@cern.ch](mailto:indico-team@cern.ch)","published":"2026-03-23T22:45:29.067Z","modified":"2026-08-12T03:51:33.970853189Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"indico","fixedVersion":"3.3.12"}],"fix":{"url":"https://github.com/indico/indico/commit/0adb70f0ed66e129361d447868f5f3eb90dc5e96","label":"indico/indico@0adb70f"},"references":[{"type":"WEB","url":"https://github.com/indico/indico/releases/tag/v3.3.12"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33046.json"},{"type":"ADVISORY","url":"https://github.com/indico/indico/security/advisories/GHSA-rm2q-f7jv-3cfp"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33046"},{"type":"FIX","url":"https://github.com/indico/indico/commit/0adb70f0ed66e129361d447868f5f3eb90dc5e96"},{"type":"FIX","url":"https://github.com/indico/indico/commit/1dbb12525b3de14229bf4d1ae192988068f975f6"},{"type":"FIX","url":"https://github.com/indico/indico/commit/5f24d23ce9c4b0e4b68b3d0b58987a948fc57c8a"},{"type":"FIX","url":"https://github.com/indico/indico/commit/fb169ced710c30cf792ce4b9f48688db0633cfd8"},{"type":"PACKAGE","url":"https://github.com/indico/indico"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:33.970853189Z"}}