CVE-2026-48862

Allocation of Resources Without Limits or Throttling vulnerability in elixir-mint Mint allows attacker-controlled HTTP/2 servers to exhaust memory in a Mint client via PUSHPROMISE flooding. In lib/mint/http2.ex, Mint.HTTP2.decodepushpromiseheadersandaddresponse/5 inserts a :reservedremote entry...

CVE-2026-48862 Unbounded conn.streams growth in Mint HTTP/2 client via unenforced PUSH_PROMISE concurrency

Allocation of Resources Without Limits or Throttling vulnerability in elixir-mint Mint allows attacker-controlled HTTP/2 servers to exhaust memory in a Mint client via PUSHPROMISE flooding. In lib/mint/http2.ex, Mint.HTTP2.decodepushpromiseheadersandaddresponse/5 inserts a :reservedremote entry...

CVE-2026-48862

Mint’s HTTP/2 client is vulnerable to unbounded growth of conn.streams due to PUSH_PROMISE handling. In Mint.HTTP2.decode_push_promise_headers_and_add_response/5, a :reserved_remote entry is created for every promised stream ID, and assert_valid_promised_stream_id/2 only checks that the ID is eve...

CVE-2026-48862 Unbounded conn.streams growth in Mint HTTP/2 client via unenforced PUSH_PROMISE concurrency

Allocation of Resources Without Limits or Throttling vulnerability in elixir-mint Mint allows attacker-controlled HTTP/2 servers to exhaust memory in a Mint client via PUSHPROMISE flooding. In lib/mint/http2.ex, Mint.HTTP2.decodepushpromiseheadersandaddresponse/5 inserts a :reservedremote entry...

CVE-2026-48862

Allocation of Resources Without Limits or Throttling vulnerability in elixir-mint Mint allows attacker-controlled HTTP/2 servers to exhaust memory in a Mint client via PUSHPROMISE flooding. In lib/mint/http2.ex, Mint.HTTP2.decodepushpromiseheadersandaddresponse/5 inserts a :reservedremote entry...

EUVD-2026-33939

Allocation of Resources Without Limits or Throttling vulnerability in elixir-mint Mint allows attacker-controlled HTTP/2 servers to exhaust memory in a Mint client via PUSHPROMISE flooding. In lib/mint/http2.ex, Mint.HTTP2.decodepushpromiseheadersandaddresponse/5 inserts a :reservedremote entry...

EEF-CVE-2026-48862 Unbounded conn.streams growth in Mint HTTP/2 client via unenforced PUSH_PROMISE concurrency

Summary Allocation of Resources Without Limits or Throttling vulnerability in elixir-mint Mint allows attacker-controlled HTTP/2 servers to exhaust memory in a Mint client via PUSHPROMISE flooding. In lib/mint/http2.ex, Mint.HTTP2.decodepushpromiseheadersandaddresponse/5 inserts a :reservedremote...

PT-2026-45785

Summary Allocation of Resources Without Limits or Throttling vulnerability in elixir-mint Mint allows attacker-controlled HTTP/2 servers to exhaust memory in a Mint client via PUSH PROMISE flooding. In lib/mint/http2.ex, Mint.HTTP2.decode push promise headers and add response/5 inserts a :reserve...

curl: lib/http2.c: SSL connections accept non-HTTP push schemes (incomplete fix for 2e8c922a)

Summary: settransferurl in lib/http2.c validates the :scheme pseudo-header of PUSHPROMISE frames only when !viasslconn — a guard added by commit 2e8c922a to block non-TLS connections from accepting TLS-scheme pushes. The symmetric case was not addressed: over TLS, viasslconn is TRUE, the guard at...

curl: HTTP/2 PUSH_PROMISE header loss on OOM bypasses scheme validation (regression of 2e8c922a89)

Summary: In lib/http2.c:1490, when curlmaprintf fails due to memory pressure, the push promise header is silently dropped but the callback returns success. If the lost header is the :scheme pseudo-header, the security check at line 733 that blocks HTTPS pushes over insecure connections is skipped...

curl: Heap Out-of-Bounds Read in lib/http2.c via Malformed PUSH_PROMISE Headers

Summary A heap-based out-of-bounds read vulnerability exists in libcurl's HTTP/2 implementation. The onheader callback in lib/http2.c incorrectly treats header names and values provided by nghttp2 as null-terminated C-strings. Specifically, passing these pointers to curlmaprintf with the %s forma...

curl: Heap Buffer Over-read in lib/http2.c (on_header) handling PUSH_PROMISE frames

Summary: I have discovered a Heap Buffer Over-read vulnerability in lib/http2.c within the onheader callback function. When processing HTTP/2 PUSHPROMISE frames, the code incorrectly uses the %s format specifier on raw pointers provided by nghttp2. According to nghttp2 documentation, the name and...

Linux Distros Unpatched Vulnerability : CVE-2019-9518

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Some HTTP/2 implementations are vulnerable to a flood of empty frames, potentially leading to a denial of service. The attacker sends a stream of frames with an...

SUSE CVE-2019-9518

Some HTTP/2 implementations are vulnerable to a flood of empty frames, potentially leading to a denial of service. The attacker sends a stream of frames with an empty payload and without the end-of-stream flag. These frames can be DATA, HEADERS, CONTINUATION and/or PUSHPROMISE. The peer spends ti...

Denial of Service (DoS)

Overview apple/swift-nio-http2 is a HTTP/2 support for SwiftNIO. Affected versions of this package are vulnerable to Denial of Service DoS. This can be caused by a network peer sending a specially crafted HTTP/2 frame, due to a logical error when parsing a HTTP/2 HEADERS or HTTP/2 PUSHPROMISE fra...

swift-nio-http2 安全漏洞

swift-nio-http2 is a SwiftPM project that can be built and tested very easily. A security vulnerability exists in swift-nio-http2 version 1.0.0 up to and including version 1.20, which stems from a logic error when an application parses an HTTP/2 header or an HTTP/2 PUSHPROMISE frame, which contai...

PT-2022-16785 · Apple · Swift-Nio-Http2

Name of the Vulnerable Software and Affected Versions: swift-nio-http2 versions 1.0.0 through 1.19.1 Description: A program using swift-nio-http2 is vulnerable to a denial of service attack, caused by a network peer sending a specially crafted HPACK-encoded header block. This attack affects...

ALPINE-CVE-2019-9518

Some HTTP/2 implementations are vulnerable to a flood of empty frames, potentially leading to a denial of service. The attacker sends a stream of frames with an empty payload and without the end-of-stream flag. These frames can be DATA, HEADERS, CONTINUATION and/or PUSHPROMISE. The peer spends ti...

PT-2019-2979 · Alt Linux +7 · Alt Linux +7

Name of the Vulnerable Software and Affected Versions: HTTP/2 implementations affected versions not specified Description: The issue is related to a flood of empty frames in HTTP/2 implementations, which can lead to a denial of service. An attacker sends a stream of frames with an empty payload a...