# CVE-2021-41035: Security feature bypass in Eclipse OMR

> Attackers can bypass Java access controls to invoke inaccessible interface methods via MethodHandles in Eclipse Openj9.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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:** 25 Oct 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-cj9m-62w3-rj89

## What is CVE-2021-41035?

CVE-2021-41035 is a critical vulnerability in The Eclipse Foundation Eclipse OMR, published on 25 Oct 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

In Eclipse Openj9 before version 0.29.0, the JVM does not throw IllegalAccessError for MethodHandles that invoke inaccessible interface methods.

Weakness: CWE-440 (Expected Behavior Violation), CWE-250 (Execution with Unnecessary Privileges)

## Which versions are affected by CVE-2021-41035?

It affects 1 product.


Products: Eclipse Openj9.

## How do I fix CVE-2021-41035?

Upgrade to a fixed version.

## Is CVE-2021-41035 being exploited?

There is no known exploitation of CVE-2021-41035 in the wild and no public exploit code.

## Other vulnerabilities in The Eclipse Foundation Eclipse OMR

- [CVE-2020-27221](https://insights.sbomify.com/CVE-2020-27221/): Memory corruption in Eclipse OpenJ9 (critical 9.8)
- [CVE-2019-11772](https://insights.sbomify.com/CVE-2019-11772/): Memory corruption in Eclipse OpenJ9 (critical 9.8)
- [CVE-2018-12547](https://insights.sbomify.com/CVE-2018-12547/): Memory corruption in Eclipse OpenJ9 (critical 9.8)
- [CVE-2018-12549](https://insights.sbomify.com/CVE-2018-12549/): Null dereference in Eclipse OpenJ9 (critical 9.8)
- [CVE-2018-12548](https://insights.sbomify.com/CVE-2018-12548/): Memory corruption in Eclipse OpenJ9 (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-41035 and fix it if it is affected.

What it is: CVE-2021-41035 is a critical vulnerability in The Eclipse Foundation Eclipse OMR, published on 25 Oct 2021. 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-2021-41035 in the wild and no public exploit code.

Affected product: The Eclipse Foundation Eclipse OMR. 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-2021-41035/ (Markdown: https://insights.sbomify.com/CVE-2021-41035/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-41035
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-41035
- OSV: https://osv.dev/vulnerability/CVE-2021-41035

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-41035/
Summaries are generated and may contain mistakes; the official description above is the record.