# CVE-2026-35176: openFPGALoader has a heap buffer overflow in POFParser::parseSection() via crafted .pof file

> A heap buffer overflow in openFPGALoader allows attackers to execute arbitrary code or cause denial of service via a crafted .pof file.

- **Severity:** High 7.1 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 6 Apr 2026
- **Updated:** 7 Apr 2026
- **Also known as:** GHSA-9x7m-m8gv-px2j

## What is CVE-2026-35176?

CVE-2026-35176 is a high-severity memory corruption vulnerability in trabucayre openFPGALoader, published on 6 Apr 2026. 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

openFPGALoader is a utility for programming FPGAs. In 1.1.1 and earlier, a heap-buffer-overflow read vulnerability exists in POFParser::parseSection() that allows out-of-bounds heap memory access when parsing a crafted .pof file. No FPGA hardware is required to trigger this vulnerability.

Weakness: CWE-125 (Out-of-bounds Read)

## Which versions are affected by CVE-2026-35176?

It affects 1 product.


Products: Trabucayre Openfpgaloader.

## How do I fix CVE-2026-35176?

No fix has been published for CVE-2026-35176 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-35176 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-35176 exists.

## Other vulnerabilities in trabucayre openFPGALoader

- [CVE-2026-35170](https://insights.sbomify.com/CVE-2026-35170/): openFPGALoader has a heap buffer overflow in BitParser::parseHeader() via crafted .bit file (high 7.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-35176 and fix it if it is affected.

What it is: CVE-2026-35176 is a high-severity memory corruption vulnerability in trabucayre openFPGALoader, published on 6 Apr 2026. 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: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-35176 exists.

Affected product: trabucayre openFPGALoader. 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-2026-35176/ (Markdown: https://insights.sbomify.com/CVE-2026-35176/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-35176
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-35176
- OSV: https://osv.dev/vulnerability/CVE-2026-35176

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-35176/
Summaries are generated and may contain mistakes; the official description above is the record.