# CVE-2024-1739: Case Insensitive Email Address Validation Vulnerability in lunary-ai/lunary

> Attackers can create duplicate accounts with case-variant emails, enabling impersonation and bypassing unique email constraints in Lunary AI.

- **Severity:** High 7.5 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 16 Apr 2024
- **Updated:** 1 Aug 2024
- **Also known as:** GHSA-xg4q-hj2g-49gr

## What is CVE-2024-1739?

CVE-2024-1739 is a high-severity vulnerability in Lunary Lunary, published on 16 Apr 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

lunary-ai/lunary is vulnerable to an authentication issue due to improper validation of email addresses during the signup process. Specifically, the server fails to treat email addresses as case insensitive, allowing the creation of multiple accounts with the same email address by varying the case of the email characters. For example, accounts for 'abc@gmail.com' and 'Abc@gmail.com' can both be created, leading to potential impersonation and confusion among users.

Weakness: CWE-821 (Incorrect Synchronization)

## Which versions are affected by CVE-2024-1739?

It affects 1 product.


Products: Lunary Lunary.

## How do I fix CVE-2024-1739?

No fix has been published for CVE-2024-1739 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-1739 being exploited?

There is no known exploitation of CVE-2024-1739 in the wild and no public exploit code.

## Other vulnerabilities in Lunary Lunary

- [CVE-2024-8999](https://insights.sbomify.com/CVE-2024-8999/): Improper Access Control in lunary-ai/lunary (critical 9.8)
- [CVE-2024-9095](https://insights.sbomify.com/CVE-2024-9095/): Improper Authorization in lunary-ai/lunary (critical 9.8)
- [CVE-2024-7456](https://insights.sbomify.com/CVE-2024-7456/): SQL Injection in lunary-ai/lunary (critical 9.8)
- [CVE-2024-4146](https://insights.sbomify.com/CVE-2024-4146/): Incorrect Authorization in lunary-ai/lunary (critical 9.8)
- [CVE-2024-5386](https://insights.sbomify.com/CVE-2024-5386/): Account Hijacking via Password Reset Token Leak in lunary-ai/lunary (critical 9.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-1739 and fix it if it is affected.

What it is: CVE-2024-1739 is a high-severity vulnerability in Lunary Lunary, published on 16 Apr 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-1739 in the wild and no public exploit code.

Affected product: Lunary Lunary. No package-level version data is available, so check the vendor advisory linked from the reference page.

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-2024-1739/ (Markdown: https://insights.sbomify.com/CVE-2024-1739/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-1739
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-1739
- OSV: https://osv.dev/vulnerability/CVE-2024-1739

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-1739/
Summaries are generated and may contain mistakes; the official description above is the record.