CVE-2026-63228

Koollab LMS contains an unrestricted image upload vulnerability (via the feedback mail registration endpoint) that allows an authenticated attacker to upload content disguised as an image, potentially enabling further server attacks. The issue is described across multiple sources (NVD/CVE records...

libXfont2: computeProps Property Buffer Heap Buffer Overflow

A heap buffer overflow due to missing size checking in the property buffer when parsing PCF files in libXfont2 ComputeScaledProperties before libXfont2 before 2.0.8 could be used by attackers using authenticated X clients to execute code within the X server...

libssh2: libssh2: Information disclosure and potential arbitrary code execution via heap out-of-bounds read

A missing bounds check in the libssh2 publickey subsystem allows malicious SSH servers to trigger a client-side out-of-bounds read, leaking heap pointers that could enable security bypasses, denial of service, or code execution...

CVE-2026-58486

CVE-2026-58486: HedgeDoc prior to 1.11.0 is vulnerable to a YAML alias bomb in note frontmatter. HedgeDoc parses frontmatter with js-yaml.load (js-yaml v3) via @hedgedoc/meta-marked, resolving YAML anchors and potentially expanding a malicious payload into a huge object, consuming CPU on each req...

PYSEC-2026-3399 Vantage6: No limit on emails sent for password/MFA reset

Impact Users can reset their MFA token via API routes that send them an email. Currently the number of emails that is sent is not limited. This gives attackers the option to flood someones mailbox with a lot of emails, and would have adverse effects on the SMTP server which may be seen as spam...

CVE-2026-48619

A flaw in Node.js HTTP/2 client allows a server to send an unlimited number of ORIGIN frames, which could lead to an Out of Memory error on the client. This vulnerability affects all supported release lines: Node.js 22, Node.js 24, and Node.js 26...

CVE-2026-50129 Mastodon: Persistent anonymous DoS via unhandled NoMethodError in MATH_TRANSFORMER

Mastodon is a free, open-source social network server based on ActivityPub. Prior to 4.5.11, 4.4.18, and 4.3.24, a DoS can be triggered by Uncaught Exception vulerability, due to missing exception handling in the math sanitizer. Malformed nodes can result in a DoS of a whole server or targeted...

Astra Linux – Vulnerability in Zeromq3

A flaw was discovered in the ZeroMQ server in versions prior to 4.3.3. This flaw allows a malicious client to cause a stack buffer overflow on the server by sending crafted topic subscription requests and then unsubscribing. The greatest threat posed by this vulnerability is to confidentiality,...

Astra Linux – Vulnerability in Jetty9

Jetty is a Java-based web server and servlet engine. An HTTP/2 SSL connection that is established and becomes TCP congested may be leaked when it times out. An attacker can cause many connections to end up in this state, and the server may run out of file descriptors, eventually causing the serve...

go-git: Improper single-quote escaping in go-git SSH transport

Impact go-git's SSH transport constructs the remote exec command by wrapping the repository path in single quotes without escaping single quotes embedded inside the path. This diverges from canonical Git, which shell-quotes the path through sqquotebuf so that an embedded ' becomes the '''...

freerdp: FreeRDP: Denial of Service via endless blocking loop in Stream_EnsureCapacity

A flaw was found in FreeRDP, a free implementation of the Remote Desktop Protocol. The StreamEnsureCapacity function can create an endless blocking loop, leading to a Denial of Service DoS. This vulnerability can be exploited on 32-bit systems where the available physical memory is greater than o...

CVE-2025-70364

An issue was discovered in Kiamo before 8.4 allowing authenticated administrative attackers to execute arbitrary PHP code on the server. NOTE: the Supplier's position is that this is "a historical and intended administrative feature of the product, accessible only to already authenticated users...

WordPress plugin Perfmatters 路径遍历漏洞

WordPress and WordPress plugins are both products of the WordPress Foundation. WordPress is a blog platform developed using the PHP language. This platform allows for the creation of personal blog websites on servers based on PHP and MySQL. A WordPress plugin is an application that can be install...

cpython: POP3 command injection in user-controlled commands

A flaw was found in the poplib module in the Python standard library. The poplib module does not reject control characters, such as newlines, in user-controlled input passed to POP3 commands. This issue allows an attacker to inject additional commands to be executed in the POP3 server...

CVE-2026-28367 Undertow: undertow: request smuggling via `\r\r\r` as a header block terminator

A flaw was found in Undertow. A remote attacker can exploit this vulnerability by sending \r\r\r as a header block terminator. This can be used for request smuggling with certain proxy servers, such as older versions of Apache Traffic Server and Google Cloud Classic Application Load Balancer,...

CVE-2026-30662

ConcreteCMS v9.4.7 contains a Denial of Service DoS vulnerability in the File Manager component. The 'download' method in 'concrete/controllers/backend/file.php' improperly manages memory when creating zip archives. It uses 'ZipArchive::addFromString' combined with 'filegetcontents', which loads...

CVE-2026-33250 Crash when receiving specially-crafted packets

Freeciv21 is a free open source, turn-based, empire-building strategy game. Versions prior to 3.1.1 crash with a stack overflow when receiving specially-crafted packets. A remote attacker can use this to take down any public server. A malicious server can use this to crash the game on the player'...

PT-2026-27176

Name of the Vulnerable Software and Affected Versions cbor2 versions prior to 5.9.0 Description The cbor2 library is susceptible to a Denial of Service DoS attack due to uncontrolled recursion when decoding deeply nested CBOR structures. This affects both the pure Python implementation and the C...

CVE-2026-3826 WellChoose｜IFTOP - Local File Inclusion

IFTOP developed by WellChoose has a Local File Inclusion vulnerability, allowing unauthenticated remote attackers to execute arbitrary code on the server...

SUSE CVE-2026-27951

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, the function StreamEnsureCapacity can create an endless blocking loop. This may affect all client and server implementations using FreeRDP. For practical exploitation this will only work on 32bit systems whe...