# CVE-2024-45687: HTTP Server incorrectly accepting disallowed characters within header values

> Attackers can inject CRLF sequences into HTTP headers to manipulate state or spoof identity in Payara Server and Micro.

- **Severity:** Low 2.4 (`CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/S:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 21 Jan 2025
- **Updated:** 12 Feb 2025
- **Also known as:** GHSA-mqh5-c2wx-v3pq

## What is CVE-2024-45687?

CVE-2024-45687 is a low-severity vulnerability in Payara Micro, published on 21 Jan 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting') vulnerability in Payara Platform Payara Server (Grizzly, REST Management Interface modules), Payara Platform Payara Micro (Grizzly modules) allows Manipulating State, Identity Spoofing.This issue affects Payara Server: from 4.1.151 through 4.1.2.191.51, from 5.20.0 through 5.70.0, from 5.2020.2 through 5.2022.5, from 6.2022.1 through 6.2024.12, from 6.0.0 through 6.21.0; Payara Micro: from 4.1.152 through 4.1.2.191.51, from 5.20.0 through 5.70.0, from 5.2020.2 through 5.2022.5, from 6.2022.1 through 6.2024.12, from 6.0.0 through 6.21.0.

Weakness: CWE-113 (Improper Neutralization of CRLF Sequences in HTTP Headers)

## Which versions are affected by CVE-2024-45687?


## How do I fix CVE-2024-45687?

No fix has been published for CVE-2024-45687 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-45687 being exploited?

There is no known exploitation of CVE-2024-45687 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-45687 and fix it if it is affected.

What it is: CVE-2024-45687 is a low-severity vulnerability in Payara Micro, published on 21 Jan 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2024-45687 in the wild and no public exploit code.

Affected product: Payara Micro. 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-2024-45687/ (Markdown: https://insights.sbomify.com/CVE-2024-45687/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-45687
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-45687
- OSV: https://osv.dev/vulnerability/CVE-2024-45687

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-45687/
Summaries are generated and may contain mistakes; the official description above is the record.