GHSA-JRPM-956J-96JG 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...

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 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: 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: 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...

EUVD-2026-79176

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: 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...

PT-2026-92407

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: Inconsistent Interpretation of HTTP Requests

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...

Astra Linux – Vulnerability in hdf5

A memory leak in the H5Ochunkdeserialize function within H5Ocache.c, part of the HDF HDF5 library, from version 1.10.3 allows attackers to cause a denial of service due to excessive memory consumption through an exploitable HDF5 file...

Astra Linux – Vulnerability in hdf5

A SIGFPE signal is raised in the function H5Dcreatechunkfilemaphyper of H5Dchunk.c in the HDF HDF5 through 1.10.3 library during an attempt to parse a crafted HDF file. This occurs due to incorrect protection against division by zero. This could allow a remote denial-of-service attack...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/cs: Commands with 0 chunks result in illegal behavior. Submitting a command with 0 chunks causes an oops, due to attempting to execute the wrong userspace driver. MESALOADERDRIVEROVERRIDE=v3d glxinfo 172536.665184 BUG:...

Astra Linux – Vulnerability in Tomcat9

Inconsistent interpretation of HTTP requests „HTTP Request/Response Smuggling“ vulnerability in Apache Tomcat due to an invalid chunk extension. This issue affects Apache Tomcat: versions from 11.0.0-M1 through 11.0.18, from 10.1.0-M1 through 10.1.52, from 9.0.0.M1 through 9.0.115, from 8.5.0...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: Handled the chunk tree lookup error in btrfsrelocatesyschunks. The unhandled case in the btrfsrelocatesyschunks loop is a corruption. This can only occur under two impossible conditions: - First, the search key is set t...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: SCTP: Avoid NULL dereferencing when the chunk data buffer is missing. The chunk-skb pointer is dereferenced in the if-block, where it is supposed to be NULL only. chunk-skb can only be NULL if chunk-headskb is not NULL. Instead,...

Astra Linux – Vulnerability in Jetty9

In Eclipse Jetty, the HTTP/1.1 parser is vulnerable to request smuggling when chunk extensions are used, similar to the “funky chunks” techniques described here: https://w4ke.info/2025/06/18/funky-chunks.html https://w4ke.info/2025/10/29/funky-chunks-2.html Jetty terminates the chunk extension...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: SCTP: Proper validation of chunk size in sctpsfootb was added. A size validation fix, similar to that in Commit 50619dbf8db7 “SCTP: Add size validation when processing chunks”, is also required in sctpsfootb to address a crash...

Astra Linux – Vulnerability in libwebp

A flaw was discovered in libwebp in versions prior to 1.0.1. An out-of-bounds read was identified in the ChunkAssignData function. The greatest threat posed by this vulnerability is related to data confidentiality and service availability...

Astra Linux - Vulnerability in Golang-1.19

A malicious HTTP sender can use chunk extensions to cause the recipient reading from the request or response body to read much more bytes from the network than actually exist in the body. A malicious HTTP client can further exploit this to cause the server to automatically read a large amount of...