CVE-2026-3099

Affects Libsoup’s server-side Digest authentication in SoupAuthDomainDigest. The vulnerability arises from failure to properly track issued nonces and increment nonce-count (nc), enabling a remote attacker to capture a single valid authentication header and replay it to bypass authentication and ...

CVE-2026-5119

CVE-2026-5119 concerns libsoup. The flaw: when establishing HTTPS tunnels through a configured HTTP proxy, sensitive session cookies are transmitted in cleartext inside the initial HTTP CONNECT request. A network-positioned attacker or a malicious HTTP proxy can intercept these cookies, enabling ...

CVE-2018-12910

CVE-2018-12910 affects libsoup’s soup-cookie-jar.c get_cookies with an empty hostname, allowing unspecified impact per multiple advisories. The issue is described as a denial of service risk (and related out-of-bounds read concerns in some entries) in libsoup 2.63.2 and earlier. Public disclosure...

CVE-2017-2885

CVE-2017-2885 affects GNOME libsoup 2.58, with a stack-based buffer overflow in HTTP processing that can be triggered by a crafted request, potentially allowing remote code execution. Connected advisories confirm upstream Libsoup vulnerability and provide patches across distributions (e.g., Red H...

CVE-2025-2784

CVE-2025-2784 affects the libsoup library (GNOME HTTP client/server). A heap buffer over-read/over-run vulnerability is reported in the content sniffing path, notably in skip_insignificant_space (and related sniffing functions), allowing an out-of-bounds read on crafted responses. Connected advis...

CVE-2019-17266

CVE-2019-17266 affects Libsoup (versions 2.65.1–2.68.1) with a heap-based buffer over-read caused by an insufficient length check in soup_ntlm_parse_challenge() before a memcpy. This could enable a remote attacker to trigger a denial of service; CVSS3/10 scores indicate high to critical impact on...

CVE-2024-52531

GNOME libsoup versions prior to 3.6.1 are vulnerable to a buffer overflow during UTF-8 conversion within the soup_header_parse_param_list_strict function. This flaw can be triggered remotely via soup_message_headers_get_content_type when an application attempts to retrieve the content type of a r...

CVE-2024-52532

The GNOME libsoup library, specifically versions prior to 3.6.1 , is vulnerable to an infinite loop and high memory consumption during the processing of specific WebSocket data patterns from clients. This flaw, categorized under CWE-835 , can be exploited remotely to cause a denial of service (Do...

CVE-2018-11713

CVE-2018-11713 concerns WebKitGTK's WebKit Libsoup network backend. WebCore/SocketStreamHandleImplSoup.cpp could fail to use system proxy settings for WebSocket connections in WebKitGTK+ builds prior to 2.20.0 or when libsoup 2.62.0 is not present. This could allow a crafted web page to deanonymi...

CVE-2024-52530

GNOME libsoup versions before 3.6.0 are vulnerable to HTTP request smuggling in certain configurations. The root cause is that the library ignores null characters ('\0') at the end of HTTP header names, causing a header like Transfer-Encoding\0: chunked to be treated identically to Transfer-Encod...

CVE-2026-3632

CVE-2026-3632 affects the libsoup library used to send network requests. The root cause is improper hostname validation which allows special characters to be injected into HTTP headers, enabling HTTP smuggling and, in some cases, Server-Side Request Forgery (SSRF) . The incident is contextualized...

CVE-2011-2524

Summary of CVE-2011-2524 (libsoup) : A directory traversal vulnerability exists in SoupServer’s soup-uri.c in libsoup prior to 2.35.4, allowing remote attackers to read arbitrary files via a %2e%2e in the URI. The issue affects libsoup across multiple advisories and distributions (e.g., MiracleLi...

CVE-2026-4271

The CVE-2026-4271 entry describes a Use-After-Free in libsoup’s HTTP/2 server implementation. A remote attacker can send specially crafted HTTP/2 requests that trigger authentication failures, leading the application to access freed memory and potentially crash or become unstable (DoS). Connected...

CVE-2026-1467

Libsoup contains a CRLF injection vulnerability (CVE-2026-1467) in which URL-decoded input used to form the Host header can be manipulated when an HTTP proxy is configured. A remote attacker can craft a URL with CRLF sequences to inject extra HTTP headers or request bodies, potentially affecting ...

CVE-2026-1801

CVE-2026-1801 affects libsoup. The vulnerability stems from non-RFC-compliant parsing in soup_filter_input_stream_read_line(), allowing malformed chunk headers (for example, lone LF instead of CRLF) to enable HTTP Request Smuggling. A remote attacker can trigger this without authentication by sen...

CVE-2026-2443

CVE-2026-2443 affects the libsoup HTTP library used in GNOME-based systems. The issue arises when processing crafted HTTP Range headers, where the library may incorrectly validate requested byte ranges, potentially allowing an out-of-bounds read via the embedded SoupServer component. The root cau...

CVE-2026-12549

The CVE-2026-12549 entry concerns GNOME Libsoup (soupserver). A regression after the fix for CVE-2026-2443 replaced specific overflow checks with a general signed comparison. When a client issues a Range request with a suffix length exceeding the content size, the resulting negative start value i...

CVE-2026-2708

CVE-2026-2708 affects the Libsoup HTTP/1 parser. The soup_message_headers_append_common() function unconditionally appends header values without validating for duplicate or conflicting Content-Length fields, enabling HTTP request smuggling via multiple Content-Length headers with differing values...

CVE-2026-66337

Summary: Libsoup contains a flaw where an unsigned integer underflow in soup_filter_input_stream_read_until() leads to a heap buffer over-read while parsing multipart HTTP responses. A malicious HTTP server can exploit this by sending a crafted multipart response, potentially causing the client a...

CVE-2026-1536

CVE-2026-1536 refers to a flaw in the libsoup HTTP library where an attacker able to control the Content-Disposition header input can inject CRLF sequences. This results in arbitrary HTTP header injection or HTTP response splitting without authentication. The connected IBM ACE bulletin documents ...

CVE-2012-2132

CVE-2012-2132 affects libsoup 2.32.2 and earlier. The flaw: libsoup does not validate certificates or clear the trust flag when the ssl-ca-file is missing, allowing a remote attacker to bypass authentication by using an SSL connection. Publicly documented impact is a certificate/trust bypass rath...

CVE-2026-2436

CVE-2026-2436 : A use-after-free in libsoup’s SoupServer can be triggered by a TLS handshake timing issue. Specifically, soup_server_disconnect() may free connection objects prematurely; if the TLS handshake completes after the object is freed, a dangling pointer access can crash the server, caus...

CVE-2026-1539

The connected IBM ACE bulletin confirms CVE-2026-1539 is a libsoup HTTP library issue: during HTTP redirects, the library removes the Authorization header but may fail to remove Proxy-Authorization when redirecting to a different host, potentially leaking proxy credentials to third-party servers....

CVE-2026-66339

CVE-2026-66339 is a vulnerability in libsoup where, after establishing a CONNECT tunnel via an HTTP proxy, the library incorrectly attaches the Proxy-Authorization header to subsequent HTTPS requests through the tunnel. This can allow the destination server to capture proxy credentials, resulting...

CVE-2026-3634

Concrete details found: CVE-2026-3634 affects the libsoup library. The vulnerability arises in soup_message_headers_set_content_type(), where improper input sanitization allows an attacker-controlled Content-Type value to inject CRLF sequences, enabling arbitrary header-value injections and HTTP ...

CVE-2026-3633

Summary: CVE-2026-3633 affects libsoup and enables CRLF/header/http request injection by an attacker who can control the method parameter in soup_message_new(). The flaw arises from inadequate escaping of the method value during request line construction, potentially allowing arbitrary headers or...

CVE-2026-2369

A vulnerability CVE-2026-2369 exists in libsoup where an integer underflow occurs when processing content with a zero-length resource, causing a buffer overread. Connected sources indicate this affects libsoup versions older than 3.4.4-14, with a patched release available (3.4.4-14). Potential im...

CVE-2026-66338

A flaw in libsoup allows HTTP request smuggling through the chunked transfer encoding parser. The vulnerable function soup_body_input_stream_read_chunked() uses a permissive parsing approach for chunk sizes that silently accepts inputs violating RFC 9112 , including leading whitespace, plus sign ...

CVE-2026-12548

CVE-2026-12548: A heap out-of-bounds read in libsoup during multipart HTTP parsing arises from an integer type mismatch in soup_headers_parse(), which truncates the length parameter and triggers a heap buffer over-read. This could crash applications using libsoup or potentially disclose heap memo...