CVE-2026-3634

Libsoup: libsoup: http header injection and response splitting via crlf injection in content-type header

A flaw was found in libsoup. An attacker controlling the value used to set the Content-Type header can inject a Carriage Return Line Feed (CRLF) sequence due to improper input sanitization in the `soup_message_headers_set_content_type()` function. This vulnerability allows for the injection of arbitrary header-value pairs, potentially leading to HTTP header injection and response splitting attacks.

CVSS 3.1 · 3.9 Low EPSS < 1% KEV · Not listed

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Gnome Libsoup Redhat

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Libsoup Libsoup Enterprise Linux and 1 more

CVE-2026-3099

Libsoup: libsoup: authentication bypass via digest authentication replay attack

A flaw was found in Libsoup. The server-side digest authentication implementation in the SoupAuthDomainDigest class does not properly track issued nonces or enforce the required incrementing nonce-count (nc) attribute. This vulnerability allows a remote attacker to capture a single valid authentication header and replay it repeatedly. Consequently, the attacker can bypass authentication and gain unauthorized access to protected resources, impersonating the legitimate user.

CVSS 3.1 · 5.8 Medium EPSS < 1% KEV · Not listed

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Gnome Libsoup Redhat

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Libsoup Libsoup Enterprise Linux and 1 more

CVE-2026-2604

Evolution-data-server: evolution data server: arbitrary file deletion via inconsistent uri handling

A flaw was found in evolution-data-server. Inconsistent comparison logic in the addressbook file backend allows a Flatpak application with D-Bus access to craft a malicious URI containing directory traversal sequences. This URI is stored without proper validation during contact creation or modification. Later, during contact deletion, the URI is processed with a less strict check, leading to the deletion of arbitrary files on the host filesystem. This could potentially include critical Flatpak override files.

CVSS 3.1 · 5.6 Medium EPSS < 1% KEV · Not listed

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Gnome Redhat

Products

Evolution-data-server Enterprise Linux Rhel Els

CVE-2026-2436

Libsoup: libsoup: denial of service via use-after-free in soupserver during tls handshake

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.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

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Gnome Libsoup Redhat

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Libsoup Libsoup Enterprise Linux and 1 more

CVE-2026-2369

Libsoup: libsoup: buffer overread due to integer underflow when handling zero-length resources

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.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

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Gnome Libsoup Redhat

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Libsoup Libsoup Enterprise Linux and 1 more

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 soup_headers_parse() can cause the length parameter to be incorrectly truncated, leading to a heap buffer over-read. A remote attacker could use this flaw to crash an application using libsoup or potentially disclose heap memory contents.

CVSS 3.1 · 4.2 Medium EPSS < 1% KEV · Not listed

Vendors

Gnome Libsoup Redhat

Products

Libsoup Libsoup Enterprise Linux

CVE-2026-12549

Libsoup: incomplete fix for cve-2026-2443: range suffix overflow in libsoup soupserver

The fix for CVE-2026-2443 was regressed by a subsequent rework commit that replaced specific overflow checks with a general signed comparison. When a client sends a Range request with a suffix length exceeding the content size, the resulting negative start value is not properly clamped, leading to malformed HTTP 206 responses and log flooding.

CVSS 3.1 · 4.8 Medium EPSS < 1% KEV · Not listed

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Gnome Libsoup Redhat

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Libsoup Libsoup Enterprise Linux and 1 more

CVE-2026-1539

Libsoup: libsoup: credential leakage via http redirects

A flaw was found in the libsoup HTTP library that can cause proxy authentication credentials to be sent to unintended destinations. When handling HTTP redirects, libsoup removes the Authorization header but does not remove the Proxy-Authorization header if the request is redirected to a different host. As a result, sensitive proxy credentials may be leaked to third-party servers. Applications using libsoup for HTTP communication may unintentionally expose proxy authentication data.

CVSS 3.1 · 5.8 Medium EPSS < 1% KEV · Not listed

Vendors

Gnome Redhat

Products

Libsoup Enterprise Linux Rhel Els

CVE-2026-1536

Libsoup: libsoup: http header injection or response splitting via crlf injection in content-disposition header

A flaw was found in libsoup. An attacker who can control the input for the Content-Disposition header can inject CRLF (Carriage Return Line Feed) sequences into the header value. These sequences are then interpreted verbatim when the HTTP request or response is constructed, allowing arbitrary HTTP headers to be injected. This vulnerability can lead to HTTP header injection or HTTP response splitting without requiring authentication or user interaction.

CVSS 3.1 · 5.8 Medium EPSS < 1% KEV · Not listed

Vendors

Gnome Redhat

Products

Libsoup Enterprise Linux Rhel Els

CVE-2026-1467

Libsoup: libsoup: http header injection via specially crafted urls when an http proxy is configured

A flaw was found in libsoup, an HTTP client library. This vulnerability, known as CRLF (Carriage Return Line Feed) Injection, occurs when an HTTP proxy is configured and the library improperly handles URL-decoded input used to create the Host header. A remote attacker can exploit this by providing a specially crafted URL containing CRLF sequences, allowing them to inject additional HTTP headers or complete HTTP request bodies. This can lead to unintended or unauthorized HTTP requests being forwarded by the proxy, potentially impacting downstream services.

CVSS 3.1 · 5.8 Medium EPSS < 1% KEV · Not listed

Vendors

Gnome Redhat

Products

Libsoup Enterprise Linux Rhel Els

CVE-2025-6196

Libgepub: integer overflow in libgepub's epub archive handling

A flaw was found in libgepub, a library used to read EPUB files. The software mishandles file size calculations when opening specially crafted EPUB files, leading to incorrect memory allocations. This issue causes the application to crash. Known affected usage includes desktop services like Tumbler, which may process malicious files automatically when browsing directories. While no direct remote attack vectors are confirmed, any application using libgepub to parse user-supplied EPUB content could be vulnerable to a denial of service.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed

Vendors

Gnome Redhat

Products

Libgepub Enterprise Linux Rhel Els

CVE-2026-110777

Evolution-data-server: local file disclosure via attach file:// uris

A flaw was found in evolution-data-server. Calendar events containing a file:// URI in their ATTACH property automatically read the targeted local file, base64-encode its contents and upload it back to the server when the event is saved. There are no file path restrictions or checks to verify whether the attachment originally came from the server or was added locally. This allows an attacker with access to a shared CalDAV calendar to exfiltrate arbitrary files the user has access to when interacting with malicious calendar events.

CVSS 3.1 · 5.7 Medium EPSS < 1% KEV · Not listed

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Gnome Red Hat Redhat

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Evolution-data-server Enterprise Linux Enterprise Linux and 1 more

CVE-2025-2784

Libsoup: heap buffer over-read in `skip_insignificant_space` when sniffing content

A flaw was found in libsoup. The package is vulnerable to a heap buffer over-read when sniffing content via the skip_insight_whitespace() function. Libsoup clients may read one byte out-of-bounds in response to a crafted HTTP response by an HTTP server.

CVSS 3.1 · 7 High EPSS < 1% KEV · Not listed

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Gnome Redhat

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Libsoup Codeready Linux Builder Codeready Linux Builder For Arm64 and 23 more

CVE-2025-14512

Glib: integer overflow in glib gio attribute escaping causes heap buffer overflow

A flaw was found in glib. This vulnerability allows a heap buffer overflow and denial-of-service (DoS) via an integer overflow in GLib's GIO (GLib Input/Output) escape_byte_string() function when processing malicious file or remote filesystem attribute values.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

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Gnome Redhat

Products

Glib Ai Inference Server Cert Manager and 14 more

CVE-2025-13601

Glib: integer overflow in in g_escape_uri_string()

A heap-based buffer overflow problem was found in glib through an incorrect calculation of buffer size in the g_escape_uri_string() function. If the string to escape contains a very large number of unacceptable characters (which would need escaping), the calculation of the length of the escaped string could overflow, leading to a potential write off the end of the newly allocated string.

CVSS 3.1 · 7.7 High EPSS < 1% KEV · Not listed

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Gnome Redhat

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Glib Ceph Storage Codeready Linux Builder and 38 more

CVE-2026-62439

Gimp: gimp: file-pvr plug-in pvr file parsing integer overflow heap-based buffer overflow vulnerability

A flaw was found in GIMP. An integer overflow occurs in the file-pvr plug-in when calculating memory buffer sizes for image dimensions. By tricking a user into opening or previewing a specially crafted PowerVR (.pvr) file, an attacker can trigger a heap-based buffer overflow, potentially leading to arbitrary code execution or a Denial of Service (DoS) via an application crash.

CVSS 3.1 · 7 High EPSS < 1% KEV · Not listed

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Gnome Red Hat Redhat

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Gimp Enterprise Linux Enterprise Linux and 1 more

CVE-2026-5201

Gdk-pixbuf: gdk-pixbuf: denial of service via heap-based buffer overflow when processing a specially crafted jpeg image

A flaw was found in the gdk-pixbuf library. This heap-based buffer overflow vulnerability occurs in the JPEG image loader due to improper validation of color component counts when processing a specially crafted JPEG image. A remote attacker can exploit this flaw without user interaction, for example, via thumbnail generation. Successful exploitation leads to application crashes and denial of service (DoS) conditions.

CVSS 3.1 · 7.5 High EPSS 1.1% KEV · Not listed

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Gnome Redhat

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Gdk-pixbuf Ai Inference Server Enterprise Linux and 21 more

CVE-2025-3155

Yelp: arbitrary file read

A flaw was found in Yelp. The Gnome user help application allows the help document to execute arbitrary scripts. This vulnerability allows malicious users to input help documents, which may exfiltrate user files to an external environment.

CVSS 3.1 · 7.4 High EPSS 13.1% KEV · Not listed

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Debian Gnome Redhat

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Debian Linux Yelp Codeready Linux Builder and 23 more

CVE-2026-13601

Yelp: yelp-xsl: overly permissive content security policy in yelp allows host file disclosure from flatpak applications

A flaw was found in Yelp due to an overly permissive Content Security Policy (CSP) implementation provided by yelp-xsl. A malicious Flatpak application can open crafted help content through the OpenURI portal. By embedding an untrusted CSS stylesheet within a structured SVG document, attacker-controlled content can bypass Flatpak's intended sandbox isolation, allowing Yelp to evaluate local XML inclusions and disclose arbitrary user-readable host files through remote CSS resource requests. This may result in the unauthorized disclosure of sensitive information.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed

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Gnome Redhat

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Yelp Enterprise Linux Rhel Aus and 5 more

CVE-2023-5557

Tracker-miners: sandbox escape

A flaw was found in the tracker-miners package. A weakness in the sandbox allows a maliciously-crafted file to execute code outside the sandbox if the tracker-extract process has first been compromised by a separate vulnerability.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Gnome Redhat

Products

Tracker Miners Enterprise Linux Rhel Aus and 4 more