# CVE-2023-28322: Information disclosure in https://github.com/curl/curl

> An attacker can cause information disclosure or memory corruption in applications using libcurl when reusing handles for HTTP transfers.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 26 May 2023
- **Updated:** 13 Feb 2026
- **Also known as:** ALPINE-CVE-2023-28322, AZL-26791, AZL-26792, AZL-34600, AZL-38070, CLEANSTART-2026-IJ60024, CLSA-2023-1688070248, CURL-CVE-2023-28322, DEBIAN-CVE-2023-28322, GHSA-78jh-p6rf-g59w, JLSEC-2026-410, UBUNTU-CVE-2023-28322

## What is CVE-2023-28322?

CVE-2023-28322 is a medium-severity vulnerability in Apple Macos, published on 26 May 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An information disclosure vulnerability exists in curl <v8.1.0 when doing HTTP(S) transfers, libcurl might erroneously use the read callback (`CURLOPT_READFUNCTION`) to ask for data to send, even when the `CURLOPT_POSTFIELDS` option has been set, if the same handle previously wasused to issue a `PUT` request which used that callback. This flaw may surprise the application and cause it to misbehave and either send off the wrong data or use memory after free or similar in the second transfer. The problem exists in the logic for a reused handle when it is (expected to be) changed from a PUT to a POST.

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2023-28322?

It affects 9 products.


Products: Apple Macos, Fedoraproject Fedora, Haxx Curl, Netapp Clustered Data Ontap, Netapp H300s Firmware, Netapp H410s Firmware, Netapp H500s Firmware, Netapp H700s Firmware, Netapp Ontap Antivirus Connector.

## How do I fix CVE-2023-28322?

Upgrade to a fixed version.

## Is CVE-2023-28322 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-28322 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-2023-28322 and fix it if it is affected.

What it is: CVE-2023-28322 is a medium-severity vulnerability in Apple Macos, published on 26 May 2023. 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-2023-28322 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-2023-28322/ (Markdown: https://insights.sbomify.com/CVE-2023-28322/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-28322
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-28322
- OSV: https://osv.dev/vulnerability/CVE-2023-28322

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-28322/
Summaries are generated and may contain mistakes; the official description above is the record.