# CVE-2022-35252: Denial of service in https://github.com/curl/curl

> An attacker can cause denial of service against sibling sites by injecting control codes into cookies via curl.

- **Severity:** Low 3.7 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 23 Sep 2022
- **Updated:** 14 Oct 2026
- **Also known as:** ALPINE-CVE-2022-35252, AZL-11046, CLEANSTART-2026-OJ03917, CLSA-2022-1663183031, CLSA-2022-1663183585, CLSA-2022-1663184487, CURL-CVE-2022-35252, DEBIAN-CVE-2022-35252, GHSA-qc3c-r429-gpgf, JLSEC-2026-397, MGASA-2022-0333, OESA-2022-1908, SUSE-SU-2022:3003-1, SUSE-SU-2022:3004-1, SUSE-SU-2022:3005-1, UBUNTU-CVE-2022-35252, USN-5587-1, openSUSE-SU-2024:12293-1

## What is CVE-2022-35252?

CVE-2022-35252 is a low-severity denial of service vulnerability in Apple Macos, published on 23 Sep 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

When curl is used to retrieve and parse cookies from a HTTP(S) server, itaccepts cookies using control codes that when later are sent back to a HTTPserver might make the server return 400 responses. Effectively allowing a"sister site" to deny service to all siblings.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2022-35252?

It affects 13 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `curl` | SUSE:Linux Enterprise Micro 5.1 | All versions | 7.66.0-150200.4.39.1 |
| `curl` | SUSE:Linux Enterprise Micro 5.2 | All versions | 7.66.0-150200.4.39.1 |
| `curl` | SUSE:Linux Enterprise Module for Basesystem 15 SP3 | All versions | 7.66.0-150200.4.39.1 |
| `curl` | SUSE:Linux Enterprise Module for Basesystem 15 SP4 | All versions | 7.79.1-150400.5.6.1 |
| `curl` | SUSE:Linux Enterprise Server 12 SP5 | All versions | 7.60.0-11.46.1 |
| `curl` | SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | All versions | 7.60.0-11.46.1 |
| `curl` | SUSE:Linux Enterprise Software Development Kit 12 SP5 | All versions | 7.60.0-11.46.1 |
| `curl` | openSUSE:Leap 15.3 | All versions | 7.66.0-150200.4.39.1 |
| `curl` | openSUSE:Leap 15.4 | All versions | 7.79.1-150400.5.6.1 |
| `curl` | openSUSE:Leap Micro 5.2 | All versions | 7.66.0-150200.4.39.1 |
| `curl` | openSUSE:Tumbleweed | All versions | 7.85.0-1.1 |

Products: Apple Macos, Debian Debian Linux, Haxx Curl, Netapp Bootstrap Os, Netapp Clustered Data Ontap, Netapp Element Software, Netapp H300s Firmware, Netapp H410s Firmware, Netapp H500s Firmware, Netapp H700s Firmware, Netapp Hci Management Node, Netapp Solidfire, Splunk Universal Forwarder.

## How do I fix CVE-2022-35252?

Upgrade to a fixed version.

## Is CVE-2022-35252 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-35252 exists.

## Other vulnerabilities in Apple Macos

- [CVE-2026-65400](https://insights.sbomify.com/CVE-2026-65400/): Apple macOS Improper Authentication (critical 9.8, exploited in the wild)
- [CVE-2024-44146](https://insights.sbomify.com/CVE-2024-44146/): Security feature bypass in macOS (critical 10.0)
- [CVE-2024-44148](https://insights.sbomify.com/CVE-2024-44148/): Security feature bypass in macOS (critical 10.0)
- [CVE-2023-38586](https://insights.sbomify.com/CVE-2023-38586/): Security feature bypass in macOS (critical 10.0)
- [CVE-2023-40455](https://insights.sbomify.com/CVE-2023-40455/): Security feature bypass in macOS (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-35252 and fix it if it is affected.

What it is: CVE-2022-35252 is a low-severity denial of service vulnerability in Apple Macos, published on 23 Sep 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-35252 exists.

Affected product: Apple Macos. 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-2022-35252/ (Markdown: https://insights.sbomify.com/CVE-2022-35252/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-35252
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-35252
- OSV: https://osv.dev/vulnerability/CVE-2022-35252

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-35252/
Summaries are generated and may contain mistakes; the official description above is the record.