# CVE-2016-1864: Information disclosure in n/a

> Remote attackers can obtain sensitive information via crafted URLs due to improper redirect handling in the WebKit XSS auditor.

- **Severity:** Medium 4.3 (`CVSS:3.0/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:** No
- **Published:** 19 Jun 2016
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-4vv7-62cm-wmwg, UBUNTU-CVE-2016-1864

## What is CVE-2016-1864?

CVE-2016-1864 is a medium-severity vulnerability in Apple Iphone Os, published on 19 Jun 2016. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The XSS auditor in WebKit, as used in Apple iOS before 9.3 and Safari before 9.1, does not properly handle redirects in block mode, which allows remote attackers to obtain sensitive information via a crafted URL.

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

## Which versions are affected by CVE-2016-1864?

It affects 2 products.


Products: Apple Iphone Os, Apple Safari.

## How do I fix CVE-2016-1864?

No fix has been published for CVE-2016-1864 yet. Limit exposure of the affected software until one is available.

## Is CVE-2016-1864 being exploited?

There is no known exploitation of CVE-2016-1864 in the wild and no public exploit code.

## Other vulnerabilities in Apple Iphone Os

- [CVE-2021-30666](https://insights.sbomify.com/CVE-2021-30666/): Apple iOS WebKit Buffer Overflow (high 8.8, exploited in the wild)
- [CVE-2021-30761](https://insights.sbomify.com/CVE-2021-30761/): Apple iOS WebKit Memory Corruption (high 8.8, exploited in the wild)
- [CVE-2021-30762](https://insights.sbomify.com/CVE-2021-30762/): Apple iOS WebKit Use-After-Free (high 8.8, exploited in the wild)
- [CVE-2016-4657](https://insights.sbomify.com/CVE-2016-4657/): Apple iOS Webkit Memory Corruption (high 8.8, exploited in the wild)
- [CVE-2019-7286](https://insights.sbomify.com/CVE-2019-7286/): Apple Multiple Products Memory Corruption (high 7.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-1864 and fix it if it is affected.

What it is: CVE-2016-1864 is a medium-severity vulnerability in Apple Iphone Os, published on 19 Jun 2016. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2016-1864 in the wild and no public exploit code.

Affected product: Apple Iphone Os. 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-2016-1864/ (Markdown: https://insights.sbomify.com/CVE-2016-1864/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-1864
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-1864
- OSV: https://osv.dev/vulnerability/CVE-2016-1864

---
From sbomify Insights: https://insights.sbomify.com/CVE-2016-1864/
Summaries are generated and may contain mistakes; the official description above is the record.