# CVE-2022-3219: Denial of service in gnupg

> Attackers can cause GnuPG to consume excessive CPU resources by providing a crafted public key with many compressed signatures, leading to denial of service.

- **Severity:** Low 3.3 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 23 Feb 2023
- **Updated:** 12 Mar 2025
- **Also known as:** CLEANSTART-2026-CL42634, CLSA-2026-1780512159, DEBIAN-CVE-2022-3219, ECHO-7c72-1439-373e, GHSA-pf7g-97vv-qmrr, MINI-25fw-j3qq-7cmf, MINI-jj53-ppmj-hfm9, UBUNTU-CVE-2022-3219

## What is CVE-2022-3219?

CVE-2022-3219 is a low-severity denial of service vulnerability in gnupg, published on 23 Feb 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

GnuPG can be made to spin on a relatively small input by (for example) crafting a public key with thousands of signatures attached, compressed down to just a few KB.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2022-3219?

It affects 1 product.


Products: Gnupg Gnupg.

## How do I fix CVE-2022-3219?

Upgrade to a fixed version.

## Is CVE-2022-3219 being exploited?

There is no known exploitation of CVE-2022-3219 in the wild and no public exploit code.

## Other vulnerabilities in gnupg

- [CVE-2022-3515](https://insights.sbomify.com/CVE-2022-3515/): Integer overflow in libksba (critical 9.8)
- [CVE-2008-1530](https://insights.sbomify.com/CVE-2008-1530/): Memory corruption in n/a (critical 9.3)
- [CVE-2026-24882](https://insights.sbomify.com/CVE-2026-24882/): Memory corruption in GnuPG (high 8.4)
- [CVE-2026-24881](https://insights.sbomify.com/CVE-2026-24881/): Memory corruption in GnuPG (high 8.1)
- [CVE-2025-68973](https://insights.sbomify.com/CVE-2025-68973/): Memory corruption in GnuPG (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-3219 and fix it if it is affected.

What it is: CVE-2022-3219 is a low-severity denial of service vulnerability in gnupg, published on 23 Feb 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-3219 in the wild and no public exploit code.

Affected product: gnupg. 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-2022-3219/ (Markdown: https://insights.sbomify.com/CVE-2022-3219/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-3219
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-3219
- OSV: https://osv.dev/vulnerability/CVE-2022-3219

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-3219/
Summaries are generated and may contain mistakes; the official description above is the record.