Bug bounty reports15,219
Publicly disclosed HackerOne reports, with the platform's own outcome and severity.
| Report | Status | Weakness | Severity | Disclosed | Bounty | Votes |
|---|---|---|---|---|---|---|
| Rack parses encoded cookie names allowing an attacker to send malicious `__Host-` and `__Secure-` prefixed cookiesAnalysed#895727 | Valid | Input Validation and Logic | Low | 2020-06-16 | – | 46 |
| ActiveStorage direct upload fails to sign content-length header for S3 service#789579 | Valid | Input Validation and Logic | Medium | 2020-05-18 | – | 5 |
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, where there is one, which can be wrong. Data as of 2026-11-15.