# CVE-2022-28615: Read beyond bounds in ap_strcmp_match()

> Attacker can cause crashes or disclose information via large inputs in Apache HTTP Server if third-party modules use the vulnerable function.

- **Severity:** Critical 9.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 8 Jun 2022
- **Updated:** 18 Dec 2025
- **Also known as:** ALPINE-CVE-2022-28615, BIT-apache-2022-28615, CLEANSTART-2026-RK78285, DEBIAN-CVE-2022-28615, GHSA-4hj9-gjv4-4363

## What is CVE-2022-28615?

CVE-2022-28615 is a critical vulnerability in Apache Http Server, published on 8 Jun 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Apache HTTP Server 2.4.53 and earlier may crash or disclose information due to a read beyond bounds in ap_strcmp_match() when provided with an extremely large input buffer. While no code distributed with the server can be coerced into such a call, third-party modules or lua scripts that use ap_strcmp_match() may hypothetically be affected.

Weakness: CWE-190 (Integer Overflow or Wraparound)

## Which versions are affected by CVE-2022-28615?

1 open source package ship an affected version, including apache. It affects 3 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `apache` | Bitnami | All versions | 2.4.54 |

Products: Apache Http Server, Fedoraproject Fedora, Netapp Clustered Data Ontap.

## How do I fix CVE-2022-28615?

Upgrade apache to 2.4.54 or later.

## Is CVE-2022-28615 being exploited?

There is no known exploitation of CVE-2022-28615 in the wild and no public exploit code.

## Other vulnerabilities in Apache Http Server

- [CVE-2021-42013](https://insights.sbomify.com/CVE-2021-42013/): Apache HTTP Server Path Traversal (critical 9.8, exploited in the wild)
- [CVE-2024-38475](https://insights.sbomify.com/CVE-2024-38475/): Apache HTTP Server Improper Escaping of Output (critical 9.1, exploited in the wild)
- [CVE-2021-40438](https://insights.sbomify.com/CVE-2021-40438/): Apache HTTP Server-Side Request Forgery (SSRF) (critical 9.0, exploited in the wild)
- [CVE-2019-0211](https://insights.sbomify.com/CVE-2019-0211/): Apache HTTP Server Privilege Escalation (high 7.8, exploited in the wild)
- [CVE-2021-41773](https://insights.sbomify.com/CVE-2021-41773/): Apache HTTP Server Path Traversal (high 7.5, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-28615 and fix it if it is affected.

What it is: CVE-2022-28615 is a critical vulnerability in Apache Http Server, published on 8 Jun 2022. 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-2022-28615 in the wild and no public exploit code.

Affected packages and fixed versions:
- apache (Bitnami): affected all versions; fixed in 2.4.54

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-2022-28615/ (Markdown: https://insights.sbomify.com/CVE-2022-28615/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-28615
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-28615
- OSV: https://osv.dev/vulnerability/CVE-2022-28615

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-28615/
Summaries are generated and may contain mistakes; the official description above is the record.