CVE-2026-102539 Super Productivity: SuperSync E2EE setup uploads and stores all user operations in plaintext before password is set
Super Productivity users enabling SuperSync may leak private tasks and credentials in plaintext before setting an encryption password.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-102539?
CVE-2026-102539 is a medium-severity vulnerability in super-productivity, published on 12 Oct 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
Super Productivity is an advanced todo list app with integrated timeboxing and time tracking capabilities. From 17.3.0 until 18.13.1, the SuperSync end-to-end encryption setup calls sync(true) before a user sets an encryption password, causing the operation-upload path to transmit and store all user operations in plaintext. The exposed operations can include private task content and connected issue-provider credentials, including reusable passwords, API tokens, and app passwords. Users who complete E2EE setup have the plaintext operations deleted, while users who leave the password-setting step can leave the data stored indefinitely. The Disable SuperSync action did not remove plaintext that had already been uploaded. Routing and causal metadata remain plaintext by design and are not part of this vulnerability. This issue is fixed in version 18.13.1.
Which versions are affected by CVE-2026-102539?
How do I fix CVE-2026-102539?
No fix has been published for CVE-2026-102539 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-102539 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-102539 exists.
Sources
Also known as GHSA-9v8x-68pf-p5x7.