Bug bounty reports15,219
Publicly disclosed HackerOne reports, with the platform's own outcome and severity.
| Report | Status | Weakness | Severity | Disclosed | Bounty | Votes |
|---|---|---|---|---|---|---|
| Contacts only sanitizes PHOTO svg if mime type is all lower case#1789602 | Valid | Cross-site Scripting | None | 2023-06-24 | – | 3 |
| Ratelimits do not apply to OCS DataResponse#1214158 | Valid | Authentication | None | 2021-08-11 | – | 4 |
| Information disclosure via Desktop client when attempting to lock a file inside a end-to-end encrypted directory#3159877 | Valid | Information Disclosure | None | 2026-01-04 | – | 8 |
| Persistent SMTP header injection via identity `organization` / `name`#3913012 | Valid | Memory Corruption | None | 2026-09-18 | – | 19 |
| Self XSS when sending HTML as a comment in the Deck app#2058556 | Valid | Cross-site Scripting | None | 2024-01-18 | – | 20 |
| SMTP header injection via C-escape `\r` in the recipient display name#3913007 | Valid | Memory Corruption | None | 2026-10-18 | – | 23 |
| Improper input validation On Exported deep-link handler crashes `FileDisplayActivity` on crafted external URL — Denial-of-Service#3399016 | Valid | Memory Corruption | None | 2026-05-01 | – | 65 |
Status and severity are HackerOne's. “Access stated” is what the title says; “Access needed” and techniques come from CyberSIXT's analysis of the public report (779 analysed so far), which can be wrong. Data as of 2026-11-14.