Time-of-check Time-of-use (TOCTOU) Race Condition

Overview undici is an An HTTP/1.1 client, written from scratch for Node.js Affected versions of this package are vulnerable to Time-of-check Time-of-use TOCTOU Race Condition in the HTTP/1.1 client when an attacker-controlled upstream server injects an unsolicited response onto an idle keep-alive...

CVE-2026-9679

Impact: undici's cookie parser in parseSetCookie percent-decodes cookie values via qsUnescape, turning encoded sequences like %0D%0A, %00, %3B, and %3D into their literal byte equivalents. RFC 6265 §5.4 does not specify any decoding and browsers do not decode either. Applications that parse a...

CVE-2026-6733

Impact: Undici's HTTP/1.1 client is vulnerable to response queue poisoning on reused keep-alive sockets. An attacker-controlled upstream server can inject an unsolicited HTTP/1.1 response onto an idle socket after a request completes. When the client dispatches the next request on that socket, it...

DEBIAN-CVE-2026-6733

Impact: Undici's HTTP/1.1 client is vulnerable to response queue poisoning on reused keep-alive sockets. An attacker-controlled upstream server can inject an unsolicited HTTP/1.1 response onto an idle socket after a request completes. When the client dispatches the next request on that socket, it...

CVE-2026-6733

Impact: Undici's HTTP/1.1 client is vulnerable to response queue poisoning on reused keep-alive sockets. An attacker-controlled upstream server can inject an unsolicited HTTP/1.1 response onto an idle socket after a request completes. When the client dispatches the next request on that socket, it...

UBUNTU-CVE-2026-6733

Impact: Undici's HTTP/1.1 client is vulnerable to response queue poisoning on reused keep-alive sockets. An attacker-controlled upstream server can inject an unsolicited HTTP/1.1 response onto an idle socket after a request completes. When the client dispatches the next request on that socket, it...

CVE-2026-6733

Undici’s HTTP/1.1 client is vulnerable to response queue poisoning on reused keep-alive sockets. An attacker-controlled upstream server can inject an unsolicited HTTP/1.1 response onto an idle socket after a request completes; when the client issues the next request on that socket, the injected r...

CVE-2026-6733 undici vulnerable to HTTP response queue poisoning via keep-alive socket reuse

Impact: Undici's HTTP/1.1 client is vulnerable to response queue poisoning on reused keep-alive sockets. An attacker-controlled upstream server can inject an unsolicited HTTP/1.1 response onto an idle socket after a request completes. When the client dispatches the next request on that socket, it...

CVE-2026-6733 undici vulnerable to HTTP response queue poisoning via keep-alive socket reuse

Impact: Undici's HTTP/1.1 client is vulnerable to response queue poisoning on reused keep-alive sockets. An attacker-controlled upstream server can inject an unsolicited HTTP/1.1 response onto an idle socket after a request completes. When the client dispatches the next request on that socket, it...

CVE-2026-6733 undici vulnerable to HTTP response queue poisoning via keep-alive socket reuse

Impact: Undici's HTTP/1.1 client is vulnerable to response queue poisoning on reused keep-alive sockets. An attacker-controlled upstream server can inject an unsolicited HTTP/1.1 response onto an idle socket after a request completes. When the client dispatches the next request on that socket, it...

CVE-2026-6733

Impact: Undici's HTTP/1.1 client is vulnerable to response queue poisoning on reused keep-alive sockets. An attacker-controlled upstream server can inject an unsolicited HTTP/1.1 response onto an idle socket after a request completes. When the client dispatches the next request on that socket, it...

AI is accelerating cyberattacks—here’s how to stay ahead

In March, we wrote that identity security has become the new pressure point for modern cyberattacks. Since then, AI has only increased that pressure. AI helps cyberattackers move faster across the attack chain: personalizing social engineering at scale, automating reconnaissance, analyzing leaked...

AI is accelerating cyberattacks—here’s how to stay ahead

In March, we wrote that identity security has become the new pressure point for modern cyberattacks. Since then, AI has only increased that pressure. AI helps cyberattackers move faster across the attack chain: personalizing social engineering at scale, automating reconnaissance, analyzing leaked...

CVE-2026-9679

undici vulnerability CVE-2026-9679 affects the cookie parsing paths (parseSetCookie, parseCookie, getSetCookies). The cookie parser percent-decodes values (via qsUnescape), turning sequences like %0D%0A, %00, %3B, and %3D into literal bytes. RFC 6265 §5.4 does not require decoding and browsers do...

dovecot: ManageSieve: Denial of Service via crafted SASL initial response in AUTHENTICATE command

A flaw was found in ManageSieve. A remote attacker can exploit this vulnerability by sending a crafted SASL Simple Authentication and Security Layer initial response during the AUTHENTICATE command. This can cause the ManageSieve service to crash repeatedly, leading to a Denial of Service DoS for...

ESET MDR vs Sophos MDR: Compared Time to discover and respond to a threat

A detailed ESET MDR vs Sophos MDR comparison covering tiers, response speed, coverage, threat intelligence, pricing, and breach warranties to help you choose...

CVE-2026-8089 weMail < 2.1.3 - Reflected Cross-Site Scripting

The weMail: Email Marketing, Email Automation, Newsletters, Subscribers & Email Optins for WooCommerce WordPress plugin before 2.1.3 does not properly escape a user-supplied parameter before reflecting it into an HTML attribute on a non-nonce-protected AJAX response, allowing unauthenticated...

PT-2026-50512

Name of the Vulnerable Software and Affected Versions undici versions prior to 6.26.0 undici versions prior to 7.28.0 undici versions prior to 8.5.0 Description The HTTP/1.1 client is subject to response queue poisoning when keep-alive sockets are reused. An attacker-controlled upstream server ca...

PT-2026-50516

Name of the Vulnerable Software and Affected Versions undici versions 6.x prior to 6.26.0 undici versions 7.0.0 through 7.27.x undici versions 8.x prior to 8.5.0 Description The cookie parser in the parseSetCookie function percent-decodes cookie values using qsUnescape, which converts encoded...

Duplicate Advisory: Zalo allowFrom could bind to mutable display names

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-8c59-hr4w-qg69. This link is maintained to preserve external references. Original Description OpenClaw before 2026.5.3 contains a policy enforcement vulnerability where Zalo contacts with mutable display metadat...