Vulnerability-Lookup

PYSEC-2026-2184

Vulnerability from pysec - Published: 2026-03-23 23:17 - Updated: 2026-07-13 05:49

Details

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.

Severity

8.8 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Impacted products

Name	purl
indico	pkg:pypi/indico

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {},
      "package": {
        "ecosystem": "PyPI",
        "name": "indico",
        "purl": "pkg:pypi/indico"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.3.12"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "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"
      ]
    }
  ],
  "aliases": [
    "CVE-2026-33046",
    "GHSA-rm2q-f7jv-3cfp"
  ],
  "details": "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\u0027s 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.",
  "id": "PYSEC-2026-2184",
  "modified": "2026-07-13T05:49:11.074268Z",
  "published": "2026-03-23T23:17:12.520Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/indico/indico/releases/tag/v3.3.12"
    },
    {
      "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": "FIX",
      "url": "https://github.com/indico/indico/security/advisories/GHSA-rm2q-f7jv-3cfp"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-33046 (GCVE-0-2026-33046)

Vulnerability from cvelistv5 – Published: 2026-03-23 22:45 – Updated: 2026-03-24 13:42

Title

Indico discloses local files resulting in Remote Code Execution through LaTeX injection

Summary

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.

Severity

7.7 (High)


                        
                          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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

GitHub_M

References

6 references

URL	Tags
https://github.com/indico/indico/security/advisor…	x_refsource_CONFIRM
https://github.com/indico/indico/commit/0adb70f0e…	x_refsource_MISC
https://github.com/indico/indico/commit/1dbb12525…	x_refsource_MISC
https://github.com/indico/indico/commit/5f24d23ce…	x_refsource_MISC
https://github.com/indico/indico/commit/fb169ced7…	x_refsource_MISC
https://github.com/indico/indico/releases/tag/v3.3.12	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
indico	indico	Affected: < 3.3.12

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-33046",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-24T13:42:10.312627Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-24T13:42:19.688Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "indico",
          "vendor": "indico",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.3.12"
            }
          ]
        }
      ],
      "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\u0027s 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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "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",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-78",
              "description": "CWE-78: Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-23T22:45:29.067Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/indico/indico/security/advisories/GHSA-rm2q-f7jv-3cfp",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/indico/indico/security/advisories/GHSA-rm2q-f7jv-3cfp"
        },
        {
          "name": "https://github.com/indico/indico/commit/0adb70f0ed66e129361d447868f5f3eb90dc5e96",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/indico/indico/commit/0adb70f0ed66e129361d447868f5f3eb90dc5e96"
        },
        {
          "name": "https://github.com/indico/indico/commit/1dbb12525b3de14229bf4d1ae192988068f975f6",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/indico/indico/commit/1dbb12525b3de14229bf4d1ae192988068f975f6"
        },
        {
          "name": "https://github.com/indico/indico/commit/5f24d23ce9c4b0e4b68b3d0b58987a948fc57c8a",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/indico/indico/commit/5f24d23ce9c4b0e4b68b3d0b58987a948fc57c8a"
        },
        {
          "name": "https://github.com/indico/indico/commit/fb169ced710c30cf792ce4b9f48688db0633cfd8",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/indico/indico/commit/fb169ced710c30cf792ce4b9f48688db0633cfd8"
        },
        {
          "name": "https://github.com/indico/indico/releases/tag/v3.3.12",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/indico/indico/releases/tag/v3.3.12"
        }
      ],
      "source": {
        "advisory": "GHSA-rm2q-f7jv-3cfp",
        "discovery": "UNKNOWN"
      },
      "title": "Indico discloses local files resulting in Remote Code Execution through LaTeX injection"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-33046",
    "datePublished": "2026-03-23T22:45:29.067Z",
    "dateReserved": "2026-03-17T18:10:50.211Z",
    "dateUpdated": "2026-03-24T13:42:19.688Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

GHSA-RM2Q-F7JV-3CFP

Vulnerability from github – Published: 2026-03-23 20:43 – Updated: 2026-03-25 20:46

Summary

Indico discloses local files resulting in Remote Code Execution through LaTeX injection

Details

[!NOTE] If server-side LaTeX rendering is not in use (ie XELATEX_PATH was not set in indico.conf), this vulnerability does not apply.

Impact

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.

Patches

It is recommended to update to Indico 3.3.12 as soon as possible. See the docs for instructions on how to update.

It is also strongly recommended to enable the containerized LaTeX renderer (using podman), which isolates it from the rest of the system. See the docs for details - it is very easy and from now on the only recommended/supported way of using LaTeX.

Workarounds

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.

For more information

For any questions or comments about this advisory:

Open a thread in the forum
Send an email to indico-team@cern.ch

Severity

7.7 (High)


                  
                    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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "indico"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.3.12"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-33046"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22",
      "CWE-78"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-23T20:43:43Z",
    "nvd_published_at": "2026-03-23T23:17:12Z",
    "severity": "HIGH"
  },
  "details": "\u003e [!NOTE]\n\u003e 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\u0027s 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)",
  "id": "GHSA-rm2q-f7jv-3cfp",
  "modified": "2026-03-25T20:46:37Z",
  "published": "2026-03-23T20:43:43Z",
  "references": [
    {
      "type": "WEB",
      "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": "WEB",
      "url": "https://github.com/indico/indico/commit/0adb70f0ed66e129361d447868f5f3eb90dc5e96"
    },
    {
      "type": "WEB",
      "url": "https://github.com/indico/indico/commit/1dbb12525b3de14229bf4d1ae192988068f975f6"
    },
    {
      "type": "WEB",
      "url": "https://github.com/indico/indico/commit/5f24d23ce9c4b0e4b68b3d0b58987a948fc57c8a"
    },
    {
      "type": "WEB",
      "url": "https://github.com/indico/indico/commit/fb169ced710c30cf792ce4b9f48688db0633cfd8"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/indico/indico"
    },
    {
      "type": "WEB",
      "url": "https://github.com/indico/indico/releases/tag/v3.3.12"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Indico discloses local files resulting in Remote Code Execution through LaTeX injection "
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

PYSEC-2026-2184

CVE-2026-33046 (GCVE-0-2026-33046)

GHSA-RM2Q-F7JV-3CFP

Impact

Patches

Workarounds

For more information

Tags

Sightings

Nomenclature