CVE-2026-33046

HIGH EPSS 51.4%
Published Mar 23, 20263mo ago · Modified Jun 17, 20262w ago
7.7 CVSS 4.0
High
Find Similar
Published Mar 23, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago

Description

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 Details

Base Score
7.7
Exploitability
—
Impact
—
Vector string
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
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
51.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 2

CWE-22 Path Traversal Resource Mgmt
CWE-78 OS Command Injection Injection

Affected Products 1

VendorProductVersionRange
cernindico* <3.3.12

References 6

  • github.com https://github.com/indico/indico/commit/0adb70f0ed66e129361d447868f5f3eb90dc5e96
    Patch
  • github.com https://github.com/indico/indico/commit/1dbb12525b3de14229bf4d1ae192988068f975f6
    Patch
  • github.com https://github.com/indico/indico/commit/5f24d23ce9c4b0e4b68b3d0b58987a948fc57c8a
    Patch
  • github.com https://github.com/indico/indico/commit/fb169ced710c30cf792ce4b9f48688db0633cfd8
    Patch
  • github.com https://github.com/indico/indico/releases/tag/v3.3.12
    ProductRelease Notes
  • github.com https://github.com/indico/indico/security/advisories/GHSA-rm2q-f7jv-3cfp
    MitigationPatchVendor Advisory

Remediation

  • github.com https://github.com/indico/indico/commit/0adb70f0ed66e129361d447868f5f3eb90dc5e96
    Patch
  • github.com https://github.com/indico/indico/commit/1dbb12525b3de14229bf4d1ae192988068f975f6
    Patch
  • github.com https://github.com/indico/indico/commit/5f24d23ce9c4b0e4b68b3d0b58987a948fc57c8a
    Patch
  • github.com https://github.com/indico/indico/commit/fb169ced710c30cf792ce4b9f48688db0633cfd8
    Patch
  • github.com https://github.com/indico/indico/security/advisories/GHSA-rm2q-f7jv-3cfp
    MitigationPatchVendor Advisory