The current version of WhatsApp is 26.40.20 (as of 09/10/2026). patchletter checks the official source daily and emails you new releases.
Actively exploited vulnerabilities
The US cybersecurity agency CISA lists these vulnerabilities in its catalog of Known Exploited Vulnerabilities. What CISA does not carry does not appear in this list — even where it is being exploited.
- CVE-2019-3568WhatsApp VOIP Stack Buffer Overflow Vulnerability
9.8 critical · over the network, without login · CISA deadline was 10 May 22
- CVE-2019-18426WhatsApp Cross-Site Scripting Vulnerability
8.2 high · over the network, without login, needs user action · CISA deadline was 13 Jun 22
- CVE-2025-55177Meta Platforms WhatsApp Incorrect Authorization Vulnerability
5.4 medium · over the network, with a basic account · CISA deadline was 23 Sept 25
Source: CISA KEV. The CVE is matched to the product automatically — when in doubt, the linked NVD entry applies.
WhatsApp at a glance
WhatsApp is a widely used messaging service that provides text, voice and video communication through mobile apps as well as desktop and web clients. In enterprise environments administrators typically encounter it via the desktop application on managed endpoints or through WhatsApp Business and its associated business API. As proprietary software, it is delivered through the respective app stores, the built-in updater of the desktop app, or managed software deployment.
Updates are shipped by the vendor in short, continuous cycles and are usually applied automatically. For sysadmins the key concern is tracking supported operating system and client versions, since older platforms are regularly dropped from support and clients then stop receiving updates.
When updating, pay attention to changed system requirements, the retirement of older client variants, and compatibility between mobile and desktop pairing. In regulated environments, data protection and compliance requirements should also be taken into account.
Version history & changelog · as detected by patchletter
| Version | Channel | Date | Notes |
|---|---|---|---|
| 26.40.20 | STABLE | 09/10/2026 | – |
| 26.40.16 | STABLE | 06/10/2026 | – |
| 26.39.21 | STABLE | 03/10/2026 | – |
| 26.39.19 | STABLE | 02/10/2026 | – |
| 26.39.17 | STABLE | 01/10/2026 | – |
| 26.39.15 | STABLE | 30/09/2026 | – |
| 26.38.20 | STABLE | 25/09/2026 | – |
| 26.38.18 | STABLE | 24/09/2026 | – |
| 26.38.15 | STABLE | 23/09/2026 | – |
| 26.38.12 | STABLE | 22/09/2026 | – |
| 26.37.22 | STABLE | 18/09/2026 | – |
| 26.37.15 | STABLE | 16/09/2026 | – |
| 26.37.12 | STABLE | 15/09/2026 | – |
| 26.36.21 | STABLE | 11/09/2026 | – |
| 26.36.18 | STABLE | 09/09/2026 | – |
| 26.36.13 | STABLE | 08/09/2026 | – |
| 26.35.23 | STABLE | 05/09/2026 | – |
| 26.35.21 | STABLE | 04/09/2026 | – |
| 26.35.18 | STABLE | 03/09/2026 | – |
| 26.35.12 | STABLE | 02/09/2026 | – |
| 26.34.24 | STABLE | 29/08/2026 | – |
| 26.34.15 | STABLE | 26/08/2026 | – |
| 26.34.12 | STABLE | 25/08/2026 | – |
| 26.33.19 | STABLE | 21/08/2026 | – |
| 26.33.17 | STABLE | 20/08/2026 | – |
| 26.33.15 | STABLE | 18/08/2026 | – |
Frequently asked questions
- What is the latest version of WhatsApp?
- WhatsApp 26.40.20, released 09/10/2026. patchletter checks the vendor's official source daily for new releases.
- Where can I find the WhatsApp release notes?
- The version history above links to the vendor's official release notes where the vendor publishes them. patchletter deliberately stores no vendor full texts.
- How do I get notified about new WhatsApp updates?
- Tick WhatsApp off in the catalogue and leave your address. From then on new versions go out by email — one at a time, or bundled in the daily or weekly digest.
An email as soon as a new WhatsApp version ships
We reconcile the vendor source daily. When a new version appears, it lands in your inbox right away or bundled as a digest. The update email is free and ends with one click. Alerts about vulnerabilities and end of support are part of patchletter Pro.
Embed this badge
The badge shows the current WhatsApp version and keeps it up to date. Anyone may embed it, no account needed.
[](https://patchletter.com/en/software/whatsapp)https://patchletter.com/badge/whatsapp.svgAlso available: ?v=eol (end of support) and ?v=cve (actively exploited).
