| CVE-2026-2436 | Med | 0.42 | 6.5 | 0.00 | | Mar 26, 2026 | A flaw was found in libsoup's SoupServer. A remote attacker could exploit a use-after-free vulnerability where the `soup_server_disconnect()` function frees connection objects prematurely, even if a TLS handshake is still pending. If the handshake completes after the connection object has been freed, a dangling pointer is accessed, leading to a server crash and a Denial of Service. |
| CVE-2026-2369 | Med | 0.42 | 6.5 | 0.00 | | Mar 19, 2026 | A flaw was found in libsoup. An integer underflow vulnerability occurs when processing content with a zero-length resource, leading to a buffer overread. This can allow an attacker to potentially access sensitive information or cause an application level denial of service. |
| CVE-2026-5119 | Med | 0.38 | 5.9 | 0.00 | | Mar 30, 2026 | A flaw was found in libsoup. When establishing HTTPS tunnels through a configured HTTP proxy, sensitive session cookies are transmitted in cleartext within the initial HTTP CONNECT request. A network-positioned attacker or a malicious HTTP proxy can intercept these cookies, leading to potential session hijacking or user impersonation. |
| CVE-2026-2708 | Low | 0.24 | 3.7 | 0.00 | | Apr 23, 2026 | A request smuggling vulnerability exists in libsoup's HTTP/1 header parsing logic. The soup_message_headers_append_common() function in libsoup/soup-message-headers.c unconditionally appends each header value without validating for duplicate or conflicting Content-Length fields. This allows an attacker to send HTTP requests containing multiple Content-Length headers with differing values. |
| CVE-2024-52531 | | 0.00 | — | 0.00 | | Nov 11, 2024 | GNOME libsoup before 3.6.1 allows a buffer overflow in applications that perform conversion to UTF-8 in soup_header_parse_param_list_strict. There is a plausible way to reach this remotely via soup_message_headers_get_content_type (e.g., an application may want to retrieve the content type of a request or response). |
| CVE-2017-2885 | | 0.00 | — | 0.06 | | Apr 24, 2018 | An exploitable stack based buffer overflow vulnerability exists in the GNOME libsoup 2.58. A specially crafted HTTP request can cause a stack overflow resulting in remote code execution. An attacker can send a special HTTP request to the vulnerable server to trigger this vulnerability. |
| CVE-2012-2132 | | 0.00 | — | 0.00 | | Aug 20, 2012 | libsoup 2.32.2 and earlier does not validate certificates or clear the trust flag when the ssl-ca-file does not exist, which allows remote attackers to bypass authentication by connecting with a SSL connection. |
| CVE-2011-2524 | | 0.00 | — | 0.01 | | Aug 31, 2011 | Directory traversal vulnerability in soup-uri.c in SoupServer in libsoup before 2.35.4 allows remote attackers to read arbitrary files via a %2e%2e (encoded dot dot) in a URI. |
