CVE-2026-47072

Improper Neutralization of CRLF Sequences 'CRLF Injection' vulnerability in benoitc hackney allows HTTP Request/Response Splitting. The WebSocket upgrade code in src/hackneyws.erl copies the host, path, headers ExtraHeaders, and protocols options from the caller-supplied opts map into the interna...

CVE-2026-47076

Interpretation Conflict vulnerability in benoitc hackney allows Server Side Request Forgery. hackneyurl:normalize/2 URL-decodes the host component after the URL has been parsed into a hackneyurl record. OTP's uristring:parse/1 and inet:parseaddress/1 do not decode percent-escapes in the host, so ...

CVE-2026-47070

Sensitive Data Exposure vulnerability in benoitc hackney allows Retrieve Embedded Sensitive Data. The HTTP/3 redirect handler in src/hackneyh3.erl passes the original request headers unchanged to the redirect target without performing any cross-origin check. When a client issues an HTTP/3 request...

CVE-2026-47067 Atom table exhaustion via unrecognized URL schemes in hackney

Allocation of Resources Without Limits or Throttling vulnerability in benoitc hackney allows Flooding. The URL parser in src/hackneyurl.erl converts every unrecognized URL scheme to a permanent BEAM atom via binarytoatom/2. BEAM atoms are never garbage-collected and the atom table defaults to a...

EUVD-2026-31691

Allocation of Resources Without Limits or Throttling vulnerability in benoitc hackney allows Flooding. The URL parser in src/hackneyurl.erl converts every unrecognized URL scheme to a permanent BEAM atom via binarytoatom/2. BEAM atoms are never garbage-collected and the atom table defaults to a...

CVE-2026-47067

Allocation of Resources Without Limits or Throttling vulnerability in benoitc hackney allows Flooding. The URL parser in src/hackneyurl.erl converts every unrecognized URL scheme to a permanent BEAM atom via binarytoatom/2. BEAM atoms are never garbage-collected and the atom table defaults to a...

CVE-2026-47067

Affected software: hackney (Erlang HTTP client). Vulnerability description: The URL parser in src/hackney_url.erl converts every unrecognized URL scheme to a permanent BEAM atom via binary_to_atom/2. BEAM atoms are never garbage-collected, and the atom table maxes out at 1,048,576 entries. An att...

EUVD-2026-31690

Improper Neutralization of CRLF Sequences 'CRLF Injection' vulnerability in benoitc hackney allows HTTP Request/Response Splitting. The WebSocket upgrade code in src/hackneyws.erl copies the host, path, headers ExtraHeaders, and protocols options from the caller-supplied opts map into the interna...

CVE-2026-47072 CRLF injection in WebSocket upgrade request in hackney

Improper Neutralization of CRLF Sequences 'CRLF Injection' vulnerability in benoitc hackney allows HTTP Request/Response Splitting. The WebSocket upgrade code in src/hackneyws.erl copies the host, path, headers ExtraHeaders, and protocols options from the caller-supplied opts map into the interna...

CVE-2026-47076

Interpretation Conflict vulnerability in benoitc hackney allows Server Side Request Forgery. hackneyurl:normalize/2 URL-decodes the host component after the URL has been parsed into a hackneyurl record. OTP's uristring:parse/1 and inet:parseaddress/1 do not decode percent-escapes in the host, so ...

CVE-2026-47070

Sensitive Data Exposure vulnerability in benoitc hackney allows Retrieve Embedded Sensitive Data. The HTTP/3 redirect handler in src/hackneyh3.erl passes the original request headers unchanged to the redirect target without performing any cross-origin check. When a client issues an HTTP/3 request...

CVE-2026-47076

CVE-2026-47076 affects the hackney HTTP client (from 0.13.0 up to, but not including, 4.0.1). The issue1 arises because hackney_url:normalize/2 decodes the host after parsing, while OTP’s uri_string:parse/1 and inet:parse_address/1 do not decode percent-escapes, allowing a crafted URL such as htt...

EEF-CVE-2026-47066 Infinite loop in Alt-Svc header parser in hackney

Summary Loop with Unreachable Exit Condition 'Infinite Loop' vulnerability in benoitc hackney allows Excessive Allocation. The Alt-Svc response header parser in src/hackneyaltsvc.erl does not guarantee forward progress. When parsetoken/2 receives a non-token, non-whitespace, non-comma byte e.g. !...

PT-2026-43064

Name of the Vulnerable Software and Affected Versions hackney versions 2.0.0-beta.1 through 4.0.0 Description An infinite loop exists in the Alt-Svc response header parser within src/hackney altsvc.erl. When the parse token/2 function receives a byte that is not a token, whitespace, or comma such...

Hackney 安全漏洞

Hackney is a program library from Hackney, Inc. A security vulnerability exists in Hackney versions prior to 2.0.0 through 4.0.1, which stems from the accumulation of unsized HTTP/3 response bodies, which could lead to resource exhaustion...

PT-2026-43073

Allocation of Resources Without Limits or Throttling vulnerability in benoitc hackney allows Flooding. hackney h3:await response loop/6 accumulates the HTTP/3 response body in memory without any size cap. The after Timeout clause is a per-message inactivity timer that resets on every received...

PT-2026-43071

Name of the Vulnerable Software and Affected Versions hackney versions 0 through 4.0.0 Description Improper Neutralization of CRLF Sequences allows HTTP Request Splitting. The software fails to percent-encode carriage return r or line feed characters in the URL query component before constructing...

PT-2026-43066

Name of the Vulnerable Software and Affected Versions hackney versions 0.9.0 through 4.0.0 Description Improper Neutralization of CRLF Sequences, also known as CRLF Injection, allows HTTP Response Splitting. The setcookie/3 function in src/hackney cookie.erl validates Name and Value arguments...

PT-2026-43065

Name of the Vulnerable Software and Affected Versions hackney versions 2.0.0 through 4.0.0 Description An issue in the URL parser within src/hackney url.erl allows for resource exhaustion. The parser uses the binary to atom/2 function to convert unrecognized URL schemes into permanent BEAM atoms...

PT-2026-43067

Name of the Vulnerable Software and Affected Versions benoitc hackney versions 3.1.1 through 4.0.0 Description A sensitive data exposure issue exists where the HTTP/3 redirect handler in src/hackney h3.erl passes original request headers to a redirect target without performing cross-origin checks...