# CVE-2022-30115: Security feature bypass in https://github.com/curl/curl

> Attackers can bypass HSTS protection in curl by manipulating trailing dots in hostnames, forcing insecure HTTP connections.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 1 Jun 2022
- **Updated:** 14 Oct 2026
- **Also known as:** ALPINE-CVE-2022-30115, AZL-9891, CLEANSTART-2026-OY53589, CURL-CVE-2022-30115, DEBIAN-CVE-2022-30115, GHSA-p8vh-85vc-66x9

## What is CVE-2022-30115?

CVE-2022-30115 is a medium-severity vulnerability in Haxx Curl, published on 1 Jun 2022. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Using its HSTS support, curl can be instructed to use HTTPS directly insteadof using an insecure clear-text HTTP step even when HTTP is provided in theURL. This mechanism could be bypassed if the host name in the given URL used atrailing dot while not using one when it built the HSTS cache. Or the otherway around - by having the trailing dot in the HSTS cache and *not* using thetrailing dot in the URL.

Weakness: CWE-319 (Cleartext Transmission of Sensitive Information), CWE-325 (Missing Cryptographic Step)

## Which versions are affected by CVE-2022-30115?

It affects 10 products.


Products: Haxx Curl, Netapp Clustered Data Ontap, Netapp H300s Firmware, Netapp H410s Firmware, Netapp H500s Firmware, Netapp H700s Firmware, Netapp Hci Bootstrap Os, Netapp Solidfire\, Enterprise Sds \& Hci Storage Node, Netapp Solidfire \& Hci Management Node, Splunk Universal Forwarder.

## How do I fix CVE-2022-30115?

Upgrade to a fixed version.

## Is CVE-2022-30115 being exploited?

There is no known exploitation of CVE-2022-30115 in the wild and no public exploit code.

## Other vulnerabilities in Haxx Curl

- [CVE-2026-19931](https://insights.sbomify.com/CVE-2026-19931/): Negotiate ambient user conn reuse (critical 9.8)
- [CVE-2026-10536](https://insights.sbomify.com/CVE-2026-10536/): HTTP/2 stream-dependency tree UAF (critical 9.8)
- [CVE-2026-11856](https://insights.sbomify.com/CVE-2026-11856/): cross-origin Digest auth state leak (critical 9.8)
- [CVE-2026-8925](https://insights.sbomify.com/CVE-2026-8925/): SASL double-free (critical 9.8)
- [CVE-2026-9079](https://insights.sbomify.com/CVE-2026-9079/): stale proxy password leak (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-30115 and fix it if it is affected.

What it is: CVE-2022-30115 is a medium-severity vulnerability in Haxx Curl, published on 1 Jun 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-30115 in the wild and no public exploit code.

Affected product: Haxx Curl. 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-2022-30115/ (Markdown: https://insights.sbomify.com/CVE-2022-30115/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-30115
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-30115
- OSV: https://osv.dev/vulnerability/CVE-2022-30115

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-30115/
Summaries are generated and may contain mistakes; the official description above is the record.