Path traversal in Meta WhatsApp Business for Android
Priority MEDIUM 42CWE-23Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
A lack of filename validation when unzipping archives prior to WhatsApp for Android v2.21.8.13 and WhatsApp Business for Android v2.21.8.13 could have allowed path traversal attacks that overwrite WhatsApp files.
Why it matters now
EPSS 0.01134 66th percentileScored 2026-11-07
Fix Fixed WhatsApp Business for Android (Facebook): v2.21.8.13WhatsApp for Android (Facebook): v2.21.8.13
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Meta | WhatsApp Business for Android | before v2.21.8.13 | v2.21.8.13 | Patch available | CNA |
| Meta | WhatsApp for Android | before v2.21.8.13 | v2.21.8.13 | Patch available | CNA |
Remediation
- Fix · CNA WhatsApp Business for Android (Facebook) Fixed in v2.21.8.13
- Fix · CNA WhatsApp for Android (Facebook) Fixed in v2.21.8.13
Timeline
- 2026-10-02 Threatist record created from CVE-2021-24035
- 2026-10-03 Alias added: GHSA-rrv8-x3gg-xhjg
References
More Meta vulnerabilities
- TI-2025-34861 Deserialization of untrusted data in Meta react-server-dom-webpack KEVCVSS 3.1CRITICAL 10.0
- TI-2019-02633 Heap-based buffer overflow in Meta WhatsApp for Android KEVCVSS 3.1CRITICAL 9.8
- TI-2019-13416 Cross-site scripting in Meta WhatsApp Desktop KEVCVSS 3.1HIGH 8.2
- TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
- TI-2025-34857 Incorrect authorization in Meta WhatsApp Desktop for Mac KEVCVSS 3.1MEDIUM 5.4
- TI-2025-34863 Deserialization of untrusted data in Meta react-server-dom-webpack CVSS 3.1HIGH 7.5
Sources
- CVE-2021-24035 · CVE Program
- CVE-2021-24035 · NVD
- FIRST EPSS
- GHSA-rrv8-x3gg-xhjg · 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