Skip to content

Bug bounty reports15,219

Publicly disclosed HackerOne reports, with the platform's own outcome and severity.

Program:curl
Status:Duplicate
Clear
Severity
Weakness
Year
Bounty paid0
Access stated
  • No account0
  • A user account0
  • Admin or privileged0
Access needed
  • No account0
  • A user account0
  • A privileged role0
  • Admin0
  • Physical or local access0
  • Not clear from the report0
Clear filters12 of 15,219 reports
Disclosed bug bounty reports
ReportStatusWeaknessSeverityDisclosedBountyVotes
14: HSTS cache import silently drops a longer-lived child beneath an includeSubDomains parent#3973124DuplicateCryptography–2026-10-26––
20: HTAB before `Secure` attribute silently drops the Secure cookie flag#3971551DuplicateNo weakness recorded–2026-10-26–1
OpenSSL provider OSSL_LIB_CTX used after free via the connection shutdown list (CVE-2026-80229 fix incomplete)#4118643DuplicateMemory CorruptionLow2026-10-26–3
HTTPS proxy connection reuse lets one easy handle inherit another handle's mTLS-authenticated proxy session#3735180DuplicateInformation DisclosureMedium2026-06-24–6
IMAP custom FETCH literals can spoof tagged responses and desynchronize reused connections#4021854DuplicateNo weakness recorded–2026-10-15–6
Retry-independent time-condition HTTP/2 UAF#4033108DuplicateMemory Corruption–2026-10-14–6
Heap Buffer Over-Read via Malicious SMB Server READ_ANDX Response#3470073DuplicateMemory CorruptionMedium2025-12-25–9
SMTP CRLF Command Injection in CURLOPT_MAIL_FROM and CURLOPT_MAIL_RCPT#3414088DuplicateInjection and SmugglingMedium2025-11-10–11
Kerberos/SPNEGO Connection Reuse Vulnerability#3725659DuplicateNo weakness recorded–2026-05-14–22
Negotiate Authentication Premature on Connection Reuse#3666576DuplicateAuthenticationHigh2026-04-29–39
Negotiate connection reuse with wrong credentials when using CURLAUTH_ANY#3646072DuplicateAuthenticationMedium2026-04-29–45
Use-After-Free in SMB connection reuse (req->path dangling pointer after needle destruction)#3591956DuplicateMemory CorruptionHigh2026-04-29–58

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 (4,614 analysed so far), which can be wrong. Data as of 2026-11-15.