UBUNTU-CVE-2026-67194

Courier IMAP before 6.0.1 and Courier Mail Server before 2.0.2 allow authenticated IMAP users to crash the imapd process via deeply nested parenthesized SEARCH queries. The SEARCH command parser allocsearchkey in searchinfo.C recursively descends on nested parenthesized groups through a mutual...

Security Bulletin: IBM WebSphere Application Server Liberty is affected by a denial of service vulnerability (CVE-2026-15057)

Summary IBM WebSphere Application Server Liberty is affected by a denial of service vulnerability due to uncontrolled heap allocation caused by an out-of-bounds write when servlet-3.1, servlet-4.0, servlet-5.0, servlet-6.0, or servlet-6.1 and with the HTTP/2 protocol enabled. Vulnerability Detail...

CVE-2026-64380

A flaw was found in the Linux kernel's Server Message Block SMB client. The vulnerability exists in the posixinfosidsize function, which is responsible for parsing POSIX Security Identifiers SIDs. An insufficient boundary check allows the system to accept truncated POSIX SIDs, which could lead to...

CVE-2026-67194 Courier IMAP < 6.0.1 Mail Server < 2.0.2 Stack Overflow DoS via Nested SEARCH Queries

Courier IMAP before 6.0.1 and Courier Mail Server before 2.0.2 allow authenticated IMAP users to crash the imapd process via deeply nested parenthesized SEARCH queries. The SEARCH command parser allocsearchkey in searchinfo.C recursively descends on nested parenthesized groups through a mutual...

CVE-2026-67194

CVE-2026-67194 affects Courier IMAP prior to 6.0.1 and Courier Mail Server prior to 2.0.2. The vulnerability lies in the SEARCH parser (alloc_search_key in searchinfo.C), which recursively descends through deeply nested parenthesized groups without a depth limit. A single IMAP command with ~2500 ...

CVE-2026-67194

Courier IMAP before 6.0.1 and Courier Mail Server before 2.0.2 allow authenticated IMAP users to crash the imapd process via deeply nested parenthesized SEARCH queries. The SEARCH command parser allocsearchkey in searchinfo.C recursively descends on nested parenthesized groups through a mutual...

EUVD-2026-43722

Easy!Appointments has server-side request forgery in CalDAV connection test that exposes the deployment's internal network...

CVE-2026-67191

Xlight FTP Server before 3.9.5 contains a pre-authentication heap buffer overflow vulnerability that allows remote unauthenticated attackers to write past the end of a heap buffer by sending a malformed SSH client identification string. A logic error in the recv loop's termination condition uses ...

CVE-2026-67193

Xlight FTP Server before 3.9.5 contains an information disclosure vulnerability that allows unauthenticated attackers to obtain the server's current GetTickCount value by sending a USER command with a username ending in the :adm suffix. Attackers can trigger the admin protocol path within the...

CVE-2026-67192

Xlight FTP Server before 3.9.5 contains a pre-authentication stack buffer overflow vulnerability that allows unauthenticated attackers to corrupt stack memory by sending malformed SSH packets when a GCM cipher is negotiated. Attackers can craft packets with an unvalidated length field passed...

CVE-2026-54735

Prebid Server is an open-source solution for running real-time advertising auctions in the cloud. Prior to version 4.4.0, certain bidder adapters in Prebid Server interpolate user-supplied parameters into outbound request URLs without properly validating host and subdomain values, allowing crafte...

EUVD-2026-50401

Prebid Server is an open-source solution for running real-time advertising auctions in the cloud. Prior to version 4.4.0, certain bidder adapters in Prebid Server interpolate user-supplied parameters into outbound request URLs without properly validating host and subdomain values, allowing crafte...

CVE-2026-54735 prebid-server's request forgery vulnerability allows for possible host environment data extraction

Prebid Server is an open-source solution for running real-time advertising auctions in the cloud. Prior to version 4.4.0, certain bidder adapters in Prebid Server interpolate user-supplied parameters into outbound request URLs without properly validating host and subdomain values, allowing crafte...

CVE-2026-54735

Prebid Server (open-source in real-time advertising auctions) contains a vulnerability (CVE-2026-54735) in versions prior to 4.4.0 where certain bidder adapters interpolate user-supplied parameters into outbound request URLs without proper host/subdomain validation, enabling crafted bid requests ...

EUVD-2026-50400

Xlight FTP Server before 3.9.5 contains an information disclosure vulnerability that allows unauthenticated attackers to obtain the server's current GetTickCount value by sending a USER command with a username ending in the :adm suffix. Attackers can trigger the admin protocol path within the...

CVE-2026-67192 Xlight FTP Server < 3.9.5 Pre-Auth Stack Buffer Overflow via SSH GCM Cipher

Xlight FTP Server before 3.9.5 contains a pre-authentication stack buffer overflow vulnerability that allows unauthenticated attackers to corrupt stack memory by sending malformed SSH packets when a GCM cipher is negotiated. Attackers can craft packets with an unvalidated length field passed...

EUVD-2026-50399

Xlight FTP Server before 3.9.5 contains a pre-authentication stack buffer overflow vulnerability that allows unauthenticated attackers to corrupt stack memory by sending malformed SSH packets when a GCM cipher is negotiated. Attackers can craft packets with an unvalidated length field passed...

CVE-2026-67192

Xlight FTP Server prior to 3.9.5 is affected by a pre-authentication stack-based buffer overflow when a GCM SSH cipher is negotiated. An unauthenticated attacker can craft malformed SSH packets with an unvalidated length field that is passed directly to the GCM decrypt function, potentially overw...

CVE-2026-67191

Xlight FTP Server prior to 3.9.5 is affected by a pre-authentication heap buffer overflow in the SSH parser. A logic error in the recv loop termination (OR instead of AND) enables exploitation on any SSH or SFTP connection before authentication, allowing remote unauthenticated access with high im...

CVE-2026-64383

A flaw was found in the Linux kernel's Server Message Block SMB client. This vulnerability, a double-free error within the SMB2flush replay mechanism, occurs when the system attempts to free a memory buffer twice. A malicious SMB server could exploit this by sending a specially crafted flush...