# CVE-2025-1634: Io.quarkus:quarkus-resteasy: memory leak in quarkus resteasy classic when client requests timeout

> A memory leak in the Quarkus RESTEasy extension causes application crashes when client requests time out, leading to denial of service.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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:** 26 Feb 2025
- **Updated:** 20 Oct 2026
- **Also known as:** GHSA-4fwr-mh5q-hchh

## What is CVE-2025-1634?

CVE-2025-1634 is a high-severity denial of service vulnerability in Red Hat Build of Apache Camel 4.8 for Quarkus 3.15, published on 26 Feb 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A flaw was found in the quarkus-resteasy extension, which causes memory leaks when client requests with low timeouts are made. If a client request times out, a buffer is not released correctly, leading to increased memory usage and eventual application crash due to OutOfMemoryError.

Weakness: CWE-401 (Missing Release of Memory after Effective Lifetime)

## Which versions are affected by CVE-2025-1634?

6 open source packages ship an affected version, including io.quarkus:quarkus-resteasy.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `io.quarkus:quarkus-resteasy` | Maven | All versions | 3.8.6.1 |
| `io.quarkus:quarkus-resteasy` | Maven | All versions | 3.8.6.1 |
| `io.quarkus:quarkus-resteasy` | Maven | From 3.16.0.CR1 | 3.19.1 |
| `io.quarkus:quarkus-resteasy` | Maven | From 3.16.0.CR1 | 3.19.1 |
| `io.quarkus:quarkus-resteasy` | Maven | From 3.9.0.CR1 | 3.15.3.1 |
| `io.quarkus:quarkus-resteasy` | Maven | From 3.9.0.CR1 | 3.15.3.1 |

## How do I fix CVE-2025-1634?

Upgrade io.quarkus:quarkus-resteasy to a fixed version for your release line: 3.8.6.1, 3.19.1 or 3.15.3.1.

## Is CVE-2025-1634 being exploited?

There is no known exploitation of CVE-2025-1634 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-1634 and fix it if it is affected.

What it is: CVE-2025-1634 is a high-severity denial of service vulnerability in Red Hat Build of Apache Camel 4.8 for Quarkus 3.15, published on 26 Feb 2025. 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-2025-1634 in the wild and no public exploit code.

Affected packages and fixed versions:
- io.quarkus:quarkus-resteasy (Maven): affected all versions; fixed in 3.8.6.1
- io.quarkus:quarkus-resteasy (Maven): affected all versions; fixed in 3.8.6.1
- io.quarkus:quarkus-resteasy (Maven): affected from 3.16.0.CR1; fixed in 3.19.1
- io.quarkus:quarkus-resteasy (Maven): affected from 3.16.0.CR1; fixed in 3.19.1
- io.quarkus:quarkus-resteasy (Maven): affected from 3.9.0.CR1; fixed in 3.15.3.1
- io.quarkus:quarkus-resteasy (Maven): affected from 3.9.0.CR1; fixed in 3.15.3.1

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-2025-1634/ (Markdown: https://insights.sbomify.com/CVE-2025-1634/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-1634
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-1634
- OSV: https://osv.dev/vulnerability/CVE-2025-1634

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-1634/
Summaries are generated and may contain mistakes; the official description above is the record.