CVE-2026-66337

A flaw was found in libsoup. An unsigned integer underflow in the soupfilterinputstreamreaduntil function causes a heap buffer over-read when parsing multipart HTTP responses. A malicious HTTP server can exploit this by sending a crafted multipart response, potentially causing the client...

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-2026-66338

A flaw was found in libsoup. The chunked transfer encoding parser uses a permissive parsing function for chunk sizes that silently accepts inputs violating RFC 9112, including leading whitespace, plus sign prefixes, and trailing invalid characters. When libsoup operates behind a strict frontend...

CVE-2026-66339

A flaw was found in libsoup. After a CONNECT tunnel is established through an HTTP proxy, libsoup incorrectly attaches the Proxy-Authorization header to subsequent HTTPS requests sent through that tunnel to the destination server. This allows the destination server to capture proxy credentials,...

CVE-2026-66339

A flaw was found in libsoup. After a CONNECT tunnel is established through an HTTP proxy, libsoup incorrectly attaches the Proxy-Authorization header to subsequent HTTPS requests sent through that tunnel to the destination server. This allows the destination server to capture proxy credentials,...

SUSE-SU-2026:22920-1 Security update for libsoup

This update for libsoup fixes the following issues: - Incomplete fix for CVE-2026-12478: out-of-bounds read in the processframe function of SoupWebSocketConnection bsc1271401...

PT-2026-64428

Name of the Vulnerable Software and Affected Versions libsoup affected versions not specified Description A flaw exists where libsoup incorrectly attaches the Proxy-Authorization header to HTTPS requests sent through a CONNECT tunnel established via an HTTP proxy. This behavior allows the...

PT-2026-64426

Name of the Vulnerable Software and Affected Versions libsoup affected versions not specified Description An unsigned integer underflow in the soup filter input stream read until function leads to a heap buffer over-read during the parsing of multipart HTTP responses. A malicious HTTP server can...

PT-2026-64427

Name of the Vulnerable Software and Affected Versions libsoup affected versions not specified Description A flaw exists in the chunked transfer encoding parser of libsoup. The parser uses a permissive function for chunk sizes that accepts inputs violating RFC 9112, such as leading whitespace, plu...

SUSE CVE-2026-12548

A heap out-of-bounds read flaw was found in libsoup. When parsing multipart HTTP messages, an integer type mismatch between the caller and soupheadersparse can cause the length parameter to be incorrectly truncated, leading to a heap buffer over-read. A remote attacker could use this flaw to cras...

Photon OS 5.0: Libsoup PHSA-2026-5.0-0851

An update of the libsoup package has been released. %NASLMINLEVEL 80900 C Tenable, Inc. The descriptive text and package checks in this plugin were extracted from VMware Security Advisory PHSA-2026-5.0-0851. The text itself is copyright C VMware, Inc. include'compat.inc'; if description...

EUVD-2026-46363

A heap out-of-bounds read flaw was found in libsoup. When parsing multipart HTTP messages, an integer type mismatch between the caller and soupheadersparse can cause the length parameter to be incorrectly truncated, leading to a heap buffer over-read. A remote attacker could use this flaw to cras...

CVE-2026-12548

A heap out-of-bounds read flaw was found in libsoup. When parsing multipart HTTP messages, an integer type mismatch between the caller and soupheadersparse can cause the length parameter to be incorrectly truncated, leading to a heap buffer over-read. A remote attacker could use this flaw to cras...

AZL-93237 CVE-2026-12547 affecting package libsoup 3.4.4-16

SoupAuthManager caches proxy authentication credentials without scoping them to the proxy authority host:port. When the proxy configuration changes e.g., via system settings or WPAD, cached Proxy-Authorization headers from the previous proxy are sent to the new proxy, leaking credentials...

DEBIAN-CVE-2026-12548

A heap out-of-bounds read flaw was found in libsoup. When parsing multipart HTTP messages, an integer type mismatch between the caller and soupheadersparse can cause the length parameter to be incorrectly truncated, leading to a heap buffer over-read. A remote attacker could use this flaw to cras...

CVE-2026-12548

A heap out-of-bounds read flaw was found in libsoup. When parsing multipart HTTP messages, an integer type mismatch between the caller and soupheadersparse can cause the length parameter to be incorrectly truncated, leading to a heap buffer over-read. A remote attacker could use this flaw to cras...

UBUNTU-CVE-2026-12548

A heap out-of-bounds read flaw was found in libsoup. When parsing multipart HTTP messages, an integer type mismatch between the caller and soupheadersparse can cause the length parameter to be incorrectly truncated, leading to a heap buffer over-read. A remote attacker could use this flaw to cras...

CVE-2026-12548 Libsoup: heap out-of-bounds read in libsoup due to integer truncation

A heap out-of-bounds read flaw was found in libsoup. When parsing multipart HTTP messages, an integer type mismatch between the caller and soupheadersparse can cause the length parameter to be incorrectly truncated, leading to a heap buffer over-read. A remote attacker could use this flaw to cras...

CVE-2026-12548

A heap out-of-bounds read flaw was found in libsoup. When parsing multipart HTTP messages, an integer type mismatch between the caller and soupheadersparse can cause the length parameter to be incorrectly truncated, leading to a heap buffer over-read. A remote attacker could use this flaw to cras...

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...