# CVE-2026-78196: achorein expo-share-intent Android File Copy Routine ExpoShareIntentModule.kt getDataColumn path traversal

> A local attacker can exploit a path traversal vulnerability in the Android file copy routine to read or modify arbitrary files.

- **Severity:** Medium 4.8 (`CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X`)
- **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:** No
- **Published:** 24 Aug 2026
- **Updated:** 26 Aug 2026
- **Also known as:** GHSA-3v3q-h6jq-r694

## What is CVE-2026-78196?

CVE-2026-78196 is a medium-severity path traversal vulnerability in achorein expo-share-intent, published on 24 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A security flaw has been discovered in achorein expo-share-intent up to 8.0.0. This affects the function getDataColumn of the file ExpoShareIntentModule.kt of the component Android File Copy Routine. The manipulation of the argument _display_name results in path traversal. The attack requires a local approach. Upgrading to version 8.0.1 is able to mitigate this issue. The patch is identified as c6900b1ed06fcc3ca4b09651348974ac5b95e4e6. The affected component should be upgraded.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2026-78196?


## How do I fix CVE-2026-78196?

No fix has been published for CVE-2026-78196 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-78196 being exploited?

There is no known exploitation of CVE-2026-78196 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-78196 and fix it if it is affected.

What it is: CVE-2026-78196 is a medium-severity path traversal vulnerability in achorein expo-share-intent, published on 24 Aug 2026. 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-2026-78196 in the wild and no public exploit code.

Affected product: achorein expo-share-intent. 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-2026-78196/ (Markdown: https://insights.sbomify.com/CVE-2026-78196/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-78196
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-78196
- OSV: https://osv.dev/vulnerability/CVE-2026-78196

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-78196/
Summaries are generated and may contain mistakes; the official description above is the record.