# CVE-2021-29041: Liferay DXP Vulnerable to Denial-of-service (DoS) in the Multi-Factor Authentication Module

> Authenticated attackers can deny service to other users by manipulating their Multi-Factor Authentication settings in Liferay DXP.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 16 May 2021
- **Updated:** 9 Jul 2026
- **Also known as:** GHSA-82j7-2h3j-hc7f

## What is CVE-2021-29041?

CVE-2021-29041 is a medium-severity denial of service vulnerability in n/a, published on 16 May 2021. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Denial-of-service (DoS) vulnerability in the Multi-Factor Authentication module in Liferay DXP 7.3 before fix pack 1 allows remote authenticated attackers to prevent any user from authenticating by (1) enabling Time-based One-time password (TOTP) on behalf of the other user or (2) modifying the other user's TOTP shared secret.

## Which versions are affected by CVE-2021-29041?

2 open source packages ship an affected version, including com.liferay.portal:release.dxp.bom. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `com.liferay.portal:release.dxp.bom` | Maven | All versions | 7.3.10.fp1 |
| `com.liferay.portal:release.dxp.bom` | Maven | All versions | 7.3.10.fp1 |

Products: Liferay Dxp.

## How do I fix CVE-2021-29041?

Upgrade com.liferay.portal:release.dxp.bom to 7.3.10.fp1 or later.

## Is CVE-2021-29041 being exploited?

There is no known exploitation of CVE-2021-29041 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2022-42120](https://insights.sbomify.com/CVE-2022-42120/): Liferay Portal and Liferay DXP Vulnerable to SQL Injection via the Fragment Module (critical 9.8)
- [CVE-2022-42122](https://insights.sbomify.com/CVE-2022-42122/): Liferay Portal and Liferay DXP Vulnerable to SQL Injection via Friendly URL Module (critical 9.8)
- [CVE-2023-35030](https://insights.sbomify.com/CVE-2023-35030/): Liferay Portal and Liferay DXP Vulnerable to CSRF via the Layout Module (high 8.8)
- [CVE-2021-29053](https://insights.sbomify.com/CVE-2021-29053/): Liferay Portal and Liferay DXP Vulnerable to Multiple SQL Injections (high 8.8)
- [CVE-2021-33321](https://insights.sbomify.com/CVE-2021-33321/): Liferay Portal and Liferay DXP insecure default configuration (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-29041 and fix it if it is affected.

What it is: CVE-2021-29041 is a medium-severity denial of service vulnerability in n/a, published on 16 May 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-29041 in the wild and no public exploit code.

Affected packages and fixed versions:
- com.liferay.portal:release.dxp.bom (Maven): affected all versions; fixed in 7.3.10.fp1
- com.liferay.portal:release.dxp.bom (Maven): affected all versions; fixed in 7.3.10.fp1

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2021-29041/ (Markdown: https://insights.sbomify.com/CVE-2021-29041/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-29041
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-29041
- OSV: https://osv.dev/vulnerability/CVE-2021-29041

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-29041/
Summaries are generated and may contain mistakes; the official description above is the record.