# CVE-2022-3945: Improper Restriction of Excessive Authentication Attempts in kareadita/kavita

> Attackers can bypass rate limiting on authentication attempts, potentially leading to account takeover via brute-force attacks.

- **Severity:** Critical 9.4 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 11 Nov 2022
- **Updated:** 30 Apr 2025
- **Also known as:** GHSA-hmq2-8vrf-9w7q

## What is CVE-2022-3945?

CVE-2022-3945 is a critical vulnerability in kareadita/kavita, published on 11 Nov 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Improper Restriction of Excessive Authentication Attempts in GitHub repository kareadita/kavita prior to 0.6.0.3.

Weakness: CWE-307 (Improper Restriction of Excessive Authentication Attempts)

## Which versions are affected by CVE-2022-3945?

It affects 1 product.


Products: Kavitareader Kavita.

## How do I fix CVE-2022-3945?

No fix has been published for CVE-2022-3945 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-3945 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-3945 exists.

## Other vulnerabilities in kareadita/kavita

- [CVE-2022-3993](https://insights.sbomify.com/CVE-2022-3993/): Improper Restriction of Excessive Authentication Attempts in kareadita/kavita (critical 9.4)
- [CVE-2023-0919](https://insights.sbomify.com/CVE-2023-0919/): Missing Authentication for Critical Function in kareadita/kavita (high 8.1)
- [CVE-2022-2756](https://insights.sbomify.com/CVE-2022-2756/): Server-Side Request Forgery (SSRF) in kareadita/kavita (high 7.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-3945 and fix it if it is affected.

What it is: CVE-2022-3945 is a critical vulnerability in kareadita/kavita, published on 11 Nov 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-3945 exists.

Affected product: kareadita/kavita. 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-2022-3945/ (Markdown: https://insights.sbomify.com/CVE-2022-3945/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-3945
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-3945
- OSV: https://osv.dev/vulnerability/CVE-2022-3945

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-3945/
Summaries are generated and may contain mistakes; the official description above is the record.