urllib3: urllib3: Denial of Service via unbounded memory allocation in chunk parser

A flaw was found in urllib3. This flaw allows a Denial of Service DoS through unbounded memory allocation when parsing chunk-encoded responses. A malicious server can send an excessively long chunk-size line without a newline, exhausting client memory and terminating the application...

Http4s: Ember chunk parser lenience (TE.TE request smuggling)

Summary Ember's chunk decoder parses the size token leniently: it strips leading and trailing whitespace and accepts a leading + or - sign. RFC9112 §7.1 defines chunk-size = 1HEXDIG. An intermediary that parses the chunk boundary differently or rejects it will disagree with Ember on request...

CVE-2026-69216 Http4s: Ember chunk parser lenience (TE.TE request smuggling)

Http4s is a Scala interface for HTTP services. Prior to 0.23.35 and 1.0.0-M47, Ember’s chunk decoder trims the chunk-size token and accepts leading plus or minus signs instead of requiring one or more hexadecimal digits followed by the required CRLF. When an intermediary forwards chunked data...

CVE-2026-69216

Http4s is a Scala library for HTTP services. Prior to 0.23.35 and 1.0.0-M47 , the Ember chunk decoder accepted leading plus or minus signs in the chunk-size token instead of requiring one or more hexadecimal digits followed by CRLF. This leniency allows an unauthenticated attacker to construct TE...

MAL-2026-10057 Malicious code in chunk-parser (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 8ffcc87316488b883c382ff45dd16c0bccb3cba432351f0716f239f81be79017 The package advertises itself as a 'Pure Node.js chunk parser platform' but its shipped code is a full remote-access trojan under internal identifier...

EUVD-2017-4608

Malware in sbrugna...

Internet Bug Bounty: CVE-2017-13090 wget heap smash

The retr.c:fdreadbody function is called when processing OK responses. When the response is sent chunked in wget before 1.19.2, the chunk parser uses strtol to read each chunk's length, but doesn't check that the chunk length is a non-negative number. The code then tries to read the chunk in piec...

Internet Bug Bounty: CVE-2017-13089 wget stack smash

The http.c:skipshortbody function is called in some circumstances, such as when processing redirects. When the response is sent chunked in wget before 1.19.2, the chunk parser uses strtol to read each chunk's length, but doesn't check that the chunk length is a non-negative number. The code then...

ALPINE-CVE-2017-13090

The retr.c:fdreadbody function is called when processing OK responses. When the response is sent chunked in wget before 1.19.2, the chunk parser uses strtol to read each chunk's length, but doesn't check that the chunk length is a non-negative number. The code then tries to read the chunk in piec...

CVE-2017-13089

The http.c:skipshortbody function is called in some circumstances, such as when processing redirects. When the response is sent chunked in wget before 1.19.2, the chunk parser uses strtol to read each chunk's length, but doesn't check that the chunk length is a non-negative number. The code then...

CVE-2017-13089

The http.c:skipshortbody function is called in some circumstances, such as when processing redirects. When the response is sent chunked in wget before 1.19.2, the chunk parser uses strtol to read each chunk's length, but doesn't check that the chunk length is a non-negative number. The code then...

CVE-2017-13090

The retr.c:fdreadbody function is called when processing OK responses. When the response is sent chunked in wget before 1.19.2, the chunk parser uses strtol to read each chunk's length, but doesn't check that the chunk length is a non-negative number. The code then tries to read the chunk in piec...

Design/Logic Flaw

The http.c:skipshortbody function is called in some circumstances, such as when processing redirects. When the response is sent chunked in wget before 1.19.2, the chunk parser uses strtol to read each chunk's length, but doesn't check that the chunk length is a non-negative number. The code then...

CVE-2017-13090

The connected documents confirm CVE-2017-13090 affects wget prior to 1.19.2, due to chunked HTTP processing in retr.c:fd_read_body(). The chunk parser uses strtol() to read chunk lengths but does not validate non-negativity; then reads chunks with MIN(..) and passes a negative length to fd_read()...

CVE-2017-13090

The retr.c:fdreadbody function is called when processing OK responses. When the response is sent chunked in wget before 1.19.2, the chunk parser uses strtol to read each chunk's length, but doesn't check that the chunk length is a non-negative number. The code then tries to read the chunk in piec...

CVE-2017-13089

The http.c:skipshortbody function is called in some circumstances, such as when processing redirects. When the response is sent chunked in wget before 1.19.2, the chunk parser uses strtol to read each chunk's length, but doesn't check that the chunk length is a non-negative number. The code then...

CVE-2017-13089

The http.c:skipshortbody function is called in some circumstances, such as when processing redirects. When the response is sent chunked in wget before 1.19.2, the chunk parser uses strtol to read each chunk's length, but doesn't check that the chunk length is a non-negative number. The code then...