MobSF: Zip Bomb Denial of Service via Per-File Size Limit Bypass in ZIP/APK Extraction
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-400.
Summary
MobSF is a mobile application security testing tool used. Prior to 4.5.1, the unzip function in mobsf/StaticAnalyzer/views/common/shared_func.py logs that an archive member exceeding ZIP_MAX_UNCOMPRESSED_FILE_SIZE is being skipped but does not continue to the next member, so an authenticated user can upload a crafted ZIP or APK whose oversized member is extracted to disk when the aggregate ZIP_MAX_UNCOMPRESSED_TOTAL_SIZE limit has not yet been reached, potentially exhausting disk space and preventing further scans. This issue is fixed in version 4.5.1.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| MobSF | Mobile-Security-Framework-MobSF | before 4.5.1 | 4.5.1 | Patch available | CNA |
| — | mobsf (PyPI) | before 4.5.1 | 4.5.1 | Patch available | GHSA-x768-8642-mmq9 |
- Mobile-Security-Framework-MobSF VendorMobSF Affected before 4.5.1 Fixed in 4.5.1 Patch available CNA
- mobsf (PyPI) Vendor— Affected before 4.5.1 Fixed in 4.5.1 Patch available GHSA-x768-8642-mmq9
Remediation
- Fix · CNA Mobile-Security-Framework-MobSF (MobSF) Fixed in 4.5.1
- Fix · GHSA-x768-8642-mmq9 mobsf (PyPI) Fixed in 4.5.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-68924
- 2026-10-03 Alias added: GHSA-x768-8642-mmq9
References
Other 5
- https://github.com/MobSF/Mobile-Security-Framework-MobSF/security/advisories/GHSA-x768-8642-mmq9
- 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
- https://github.com/MobSF/Mobile-Security-Framework-MobSF
More MobSF vulnerabilities
- TI-2024-29048 Mobile Security Framework (MobSF) has a Zip Slip Vulnerability in .a Static Library Files CVSS 3.1CRITICAL 9.8
- TI-2025-22377 Mobile Security Framework (MobSF) has a SSRF Vulnerability fix bypass on assetlinks_check with DNS Rebinding CVSS 3.1CRITICAL 9.8
- TI-2025-29076 Mobile Security Framework (MobSF) Allows Stored Cross Site Scripting (XSS) via malicious SVG Icon Upload CVSS 4.0HIGH 8.6
- TI-2025-18522 Local Privilege Escalation in MobSF CVSS 4.0HIGH 8.5
- TI-2025-18520 Stored Cross-Site Scripting (XSS) in MobSF CVSS 4.0HIGH 8.4
- TI-2024-36155 Mobile Security Framework (MobSF) bypass of SSRF fix CVSS 3.1HIGH 7.5
Sources
- CVE-2026-68924 · CVE Program
- CVE-2026-68924 · NVD
- FIRST EPSS
- GHSA-x768-8642-mmq9 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences