CVE-2026-56853

A flaw was found in the net/http component of the Go standard library. When a server is configured to support unencrypted HTTP/2, it reads initial bytes from new connections to detect the HTTP/2 client preface. However, the ReadHeaderTimeout is not correctly applied during this process. This...

golang: net/url: Memory exhaustion in query parameter parsing in net/url

A flaw was found in the net/url package in the Go standard library. The package does not enforce a limit on the number of unique query parameters it parses. A Go application using the net/http.Request.ParseForm method will try to process all parameters provided in the request. A specially crafted...

DEBIAN-CVE-2026-56853

When a server is configured to support unencrypted HTTP/2, it reads a few bytes from each new connection to see if they contain the HTTP/2 client preface. ReadHeaderTimeout is unexpectedly not being applied when doing this...

CVE-2026-56853 Apply ReadHeaderTimeout when doing unencrypted HTTP/2 check in net/http

When a server is configured to support unencrypted HTTP/2, it reads a few bytes from each new connection to see if they contain the HTTP/2 client preface. ReadHeaderTimeout is unexpectedly not being applied when doing this...

CVE-2026-56853 Apply ReadHeaderTimeout when doing unencrypted HTTP/2 check in net/http

When a server is configured to support unencrypted HTTP/2, it reads a few bytes from each new connection to see if they contain the HTTP/2 client preface. ReadHeaderTimeout is unexpectedly not being applied when doing this...

CVE-2026-56853

Technical details about CVE-2026-56853 are not publicly available in the provided documents; monitor for updates.

GO-2026-6089 Apply ReadHeaderTimeout when doing unencrypted HTTP/2 check in net/http

When a server is configured to support unencrypted HTTP/2, it reads a few bytes from each new connection to see if they contain the HTTP/2 client preface. ReadHeaderTimeout is unexpectedly not being applied when doing this...

PT-2026-71895

When a server is configured to support unencrypted HTTP/2, it reads a few bytes from each new connection to see if they contain the HTTP/2 client preface. ReadHeaderTimeout is unexpectedly not being applied when doing this...

CVE-2026-67201 V 0.5.2 SSRF Bypass via Parser Differential in net.urllib and net.http

V through 0.5.2, fixed in commit 85859f0, contains a server-side request forgery SSRF bypass vulnerability that allows attackers to circumvent host-based allowlists by exploiting a parser differential between net.urllib and net.http. Attackers can craft a URL containing a backslash in the authori...

CVE-2026-67201

CVE-2026-67201 describes a SSRF bypass in V’s standard library between net.urllib and net.http up to version 0.5.2. By crafting a URL with a backslash in the authority section, net.urllib.parse() can extract a trusted host for allowlists, while net.http.get() normalizes the backslash and connects...

EUVD-2026-50446

V through 0.5.2, fixed in commit 85859f0, contains a server-side request forgery SSRF bypass vulnerability that allows attackers to circumvent host-based allowlists by exploiting a parser differential between net.urllib and net.http. Attackers can craft a URL containing a backslash in the authori...

CVE-2026-67201 V 0.5.2 SSRF Bypass via Parser Differential in net.urllib and net.http

V through 0.5.2, fixed in commit 85859f0, contains a server-side request forgery SSRF bypass vulnerability that allows attackers to circumvent host-based allowlists by exploiting a parser differential between net.urllib and net.http. Attackers can craft a URL containing a backslash in the authori...

CVE-2026-67201 V 0.5.2 SSRF Bypass via Parser Differential in net.urllib and net.http

V through 0.5.2, fixed in commit 85859f0, contains a server-side request forgery SSRF bypass vulnerability that allows attackers to circumvent host-based allowlists by exploiting a parser differential between net.urllib and net.http. Attackers can craft a URL containing a backslash in the authori...

SUSE-SU-2026:22572-1 Security update for go1.26-openssl

This update for go1.26-openssl fixes the following issues: Update to go1.26.4 bsc1255111. Security issues fixed: - CVE-2026-27140: cmd/go: trust layer bypass when using cgo and SWIG bsc1261653. - CVE-2026-27143: cmd/compile: possible memory corruption after bound check elimination bsc1261654. -...

Astra Linux – Vulnerability in Golang-1.15

In Go versions before 1.15.13 and 1.16.x, as well as before 1.16.5, certain configurations of ReverseProxy from net/http/httputil lead to a situation where an attacker can drop arbitrary headers...

Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: git-lfs (UTSA-2026-021307)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-021307 advisory. The net/http package improperly accepts a bare LF as a line terminator in chunked data chunk-size lines. This can permit request smuggling if a net/http server is us...

Infinite loop in HTTP/2 transport when given bad SETTINGS_MAX_FRAME_SIZE in net/http/internal/http2 in golang.org/x/net

...

CVE-2026-33814 Infinite loop in HTTP/2 transport when given bad SETTINGS_MAX_FRAME_SIZE in net/http/internal/http2 in golang.org/x/net

When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION frames if it receives a SETTINGSMAXFRAMESIZE with a value of 0...

GO-2026-4918 Infinite loop in HTTP/2 transport when given bad SETTINGS_MAX_FRAME_SIZE in net/http/internal/http2 in golang.org/x/net

When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION frames if it receives a SETTINGSMAXFRAMESIZE with a value of 0...

RHCOS 4 : OpenShift Container Platform 4.16.45 (RHSA-2025:11682)

The remote Red Hat Enterprise Linux CoreOS 4 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2025:11682 advisory. - net/http: Request smuggling due to acceptance of invalid chunked data in net/http CVE-2025-22871 Note that Nessus has not tested for this...