EUVD-2026-87768

stoatchat before 0.15.5 fails to revalidate usernames after Unicode sanitization, allowing attackers to create usernames with forbidden characters by submitting Unicode letters that transform into rejected characters. Attackers can bypass character allowlists and length limits to create...

CVE-2026-100674

The stoatchat application (versions prior to 0.15.5 ) is vulnerable to a username validation bypass due to insufficient revalidation after Unicode sanitization . An attacker can submit Unicode letters that transform into forbidden characters post-sanitization, allowing them to bypass character al...

CVE-2026-100674 stoatchat before 0.15.5 Username Validation Bypass via Unicode Sanitization

stoatchat before 0.15.5 fails to revalidate usernames after Unicode sanitization, allowing attackers to create usernames with forbidden characters by submitting Unicode letters that transform into rejected characters. Attackers can bypass character allowlists and length limits to create...

PT-2026-99345

Name of the Vulnerable Software and Affected Versions stoatchat versions prior to 0.15.5 Description Insufficient revalidation of usernames after Unicode sanitization allows the creation of usernames containing forbidden characters. By submitting specific Unicode letters that transform into...

CVE-2026-17545

On Windows, PHP's filesystem and stream APIs do not reject reserved device names such as CON, PRN, AUX, NUL, COM1 to COM9, LPT1 to LPT9, CONIN$ and CONOUT$ when they appear as a component of a path. An attacker-controlled filename therefore reaches CreateFileW and opens a device instead of the...

CVE-2026-17545

On Windows, PHP's filesystem and stream APIs do not reject reserved device names such as CON, PRN, AUX, NUL, COM1 to COM9, LPT1 to LPT9, CONIN$ and CONOUT$ when they appear as a component of a path. An attacker-controlled filename therefore reaches CreateFileW and opens a device instead of the...

UBUNTU-CVE-2026-17545

On Windows, PHP's filesystem and stream APIs do not reject reserved device names such as CON, PRN, AUX, NUL, COM1 to COM9, LPT1 to LPT9, CONIN$ and CONOUT$ when they appear as a component of a path. An attacker-controlled filename therefore reaches CreateFileW and opens a device instead of the...

CVE-2026-17545

On Windows, PHP's filesystem and stream APIs do not reject reserved device names such as CON, PRN, AUX, NUL, COM1 to COM9, LPT1 to LPT9, CONIN$ and CONOUT$ when they appear as a component of a path. An attacker-controlled filename therefore reaches CreateFileW and opens a device instead of the...

CVE-2026-17545

On Windows, PHP's filesystem and stream APIs do not reject reserved device names such as CON, PRN, AUX, NUL, COM1 to COM9, LPT1 to LPT9, CONIN$ and CONOUT$ when they appear as a component of a path. An attacker-controlled filename therefore reaches CreateFileW and opens a device instead of the...

EUVD-2026-87329

On Windows, PHP's filesystem and stream APIs do not reject reserved device names such as CON, PRN, AUX, NUL, COM1 to COM9, LPT1 to LPT9, CONIN$ and CONOUT$ when they appear as a component of a path. An attacker-controlled filename therefore reaches CreateFileW and opens a device instead of the...

CVE-2026-17545

On Windows , PHP's filesystem and stream APIs fail to reject reserved system device names (such as CON , PRN , AUX , NUL , COM1 to COM9 , LPT1 to LPT9 , CONIN$ , and CONOUT$ ) when they are used as path components. An attacker who can control file or stream paths can supply these reserved names t...

CVE-2026-17545 PHP on Windows: Reserved Device Names Are Not Rejected Before File/Stream I/O which can cause DoS

On Windows, PHP's filesystem and stream APIs do not reject reserved device names such as CON, PRN, AUX, NUL, COM1 to COM9, LPT1 to LPT9, CONIN$ and CONOUT$ when they appear as a component of a path. An attacker-controlled filename therefore reaches CreateFileW and opens a device instead of the...

CVE-2026-17545 PHP on Windows: Reserved Device Names Are Not Rejected Before File/Stream I/O which can cause DoS

On Windows, PHP's filesystem and stream APIs do not reject reserved device names such as CON, PRN, AUX, NUL, COM1 to COM9, LPT1 to LPT9, CONIN$ and CONOUT$ when they appear as a component of a path. An attacker-controlled filename therefore reaches CreateFileW and opens a device instead of the...

CVE-2026-17545: Improper Handling of Windows Device Names

On Windows, PHP's filesystem and stream APIs do not reject reserved device names such as CON, PRN, AUX, NUL, COM1 to COM9, LPT1 to LPT9, CONIN$ and CONOUT$ when they appear as a component of a path. An attacker-controlled filename therefore reaches CreateFileW and opens a device instead of the...

PT-2026-99112

Name of the Vulnerable Software and Affected Versions PHP affected versions not specified Description On Windows, filesystem and stream APIs fail to reject reserved device names when they are part of a path. These reserved names include CON, PRN, AUX, NUL, COM1 through COM9, LPT1 through LPT9,...

CVE-2026-77581 BentoPDF: SSRF in cors-proxy-worker.js via DNS-based hostname allowlist bypass

BentoPDF is a client-side PDF toolkit that is self hostable. In 2.8.6 and earlier, the certificate and timestamp CORS proxy in cloudflare/cors-proxy-worker.js uses isPrivateOrReservedHost to validate a supplied hostname separately from the DNS resolution used by fetchtargetUrl, allowing an...

CVE-2026-77581 BentoPDF: SSRF in cors-proxy-worker.js via DNS-based hostname allowlist bypass

BentoPDF is a client-side PDF toolkit that is self hostable. In 2.8.6 and earlier, the certificate and timestamp CORS proxy in cloudflare/cors-proxy-worker.js uses isPrivateOrReservedHost to validate a supplied hostname separately from the DNS resolution used by fetchtargetUrl, allowing an...

CVE-2026-95846

The Moquette lightweight Java MQTT broker is vulnerable to unauthorized message injection in versions prior to 0.18.1 . The PostOffice.publishWill function fails to apply canWrite authorization and reserved-topic checks when publishing a client's Last-Will message. This allows a client to configu...

curl: Windows filename sanitizer misses Unicode COM/LPT reserved device names

Hi all, I found a way for a server-selected Windows filename to bypass curl's reserved DOS device-name sanitizer. With curl -O -J, a Content-Disposition filename such as COM¹, COM², COM³, LPT¹, LPT², or LPT³ is left unchanged, even though Windows treats all six as reserved device names. Curl...

EUVD-2026-83257

CSSOM through 0.5.0 contains a denial of service vulnerability in CSSStyleDeclaration.setProperty that fails to validate reserved property names. Attackers can supply a stylesheet with a declaration named length to replace the internal counter and trigger excessive memory allocation during cssTex...