CVE-2026-18540

A flaw was found in undici. An attacker-controlled upstream server can exploit a vulnerability in the retry interceptor, which incorrectly appends data to a ranged retry response. This can cause the response body to be longer than the Content-Length observed by the application. Consequently, an...

UBUNTU-CVE-2026-18540

undicis retry interceptor can append the body of a ranged retry respo...

Linux Distros Unpatched Vulnerability : CVE-2026-18540

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - undici's retry interceptor can append the body of a ranged retry response to bytes already delivered from an earlier partial response while still presenting the...

HTTP Request Smuggling

Overview undici is an An HTTP/1.1 client, written from scratch for Node.js Affected versions of this package are vulnerable to HTTP Request Smuggling in the interceptors.retry interceptor, which resumes a partial response and appends the resumed bytes to an already-delivered body, so the delivere...

CVE-2026-18540

undici's retry interceptor can append the body of a ranged retry response to bytes already delivered from an earlier partial response while still presenting the original response's status and headers. This happens when an upstream server delivers part of a body without a trustworthy resume...

DEBIAN-CVE-2026-18540

undici's retry interceptor can append the body of a ranged retry response to bytes already delivered from an earlier partial response while still presenting the original response's status and headers. This happens when an upstream server delivers part of a body without a trustworthy resume...

CVE-2026-18540

CVE-2026-18540 affects undici (Node.js HTTP client library). The retry interceptor can append the body of a ranged retry response to bytes already delivered from an earlier partial response, presenting the original status and headers. This causes the response body to exceed the observed Content-L...

CVE-2026-18540 undici vulnerable to downstream response splitting via retry interceptor

undici's retry interceptor can append the body of a ranged retry response to bytes already delivered from an earlier partial response while still presenting the original response's status and headers. This happens when an upstream server delivers part of a body without a trustworthy resume...

CVE-2026-18540

undici's retry interceptor can append the body of a ranged retry response to bytes already delivered from an earlier partial response while still presenting the original response's status and headers. This happens when an upstream server delivers part of a body without a trustworthy resume...

CVE-2026-18540 undici vulnerable to downstream response splitting via retry interceptor

undici's retry interceptor can append the body of a ranged retry response to bytes already delivered from an earlier partial response while still presenting the original response's status and headers. This happens when an upstream server delivers part of a body without a trustworthy resume...

Important: nodejs22

Issue Overview: brace-expansion through 5.0.6 is vulnerable to denial of service. The expand function exhibits exponential-time complexity in the number of consecutive non-expanding '' brace groups. An attacker who passes a crafted string to expand, directly or transitively, can cause significant...

CVE-2026-16728

A flaw was found in undici. A malicious or faulty upstream server could send a partial response with incorrect length information. When undici's retry interceptor processes this, it may create a response body with a length that does not match the original Content-Length header. This can lead to...

SUSE CVE-2026-16728

undici's retry interceptor can deliver a response whose body length does not match the Content-Length header exposed to the application after a retry or resume of a partial response. In undici before 6.28.0, from 7.0.0 up to before 7.29.0, and from 8.0.0 up to before 8.9.0, a malicious or faulty...

EUVD-2026-50566

undici vulnerable to downstream response desynchronization via retry interceptor...

NPM: undici vulnerable to downstream response desynchronization via retry interceptor

NPM: undici vulnerable to downstream response desynchronization via retry interceptor vulnerability discovered by ? in WordPress Npm undici versions 6.28.0...

GHSA-8XCM-R25X-G524 undici vulnerable to downstream response desynchronization via retry interceptor

Impact Undici's interceptors.retry can deliver a response whose body length does not match the Content-Length header exposed to the application after a retry or resume of a partial response. Applications that use interceptors.retry and forward upstream response headers and bodies downstream, for...

undici vulnerable to downstream response desynchronization via retry interceptor

Impact Undici's interceptors.retry can deliver a response whose body length does not match the Content-Length header exposed to the application after a retry or resume of a partial response. Applications that use interceptors.retry and forward upstream response headers and bodies downstream, for...

undici: undici: Response desynchronization via retry interceptor with mismatched Content-Length

A flaw was found in undici. A malicious or faulty upstream server could send a partial response with incorrect length information. When undici's retry interceptor processes this, it may create a response body with a length that does not match the original Content-Length header. This can lead to...

Linux Distros Unpatched Vulnerability : CVE-2026-16728

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - undici's retry interceptor can deliver a response whose body length does not match the Content-Length header exposed to the application after a retry or resume ...

HTTP Request Smuggling

Overview undici is an An HTTP/1.1 client, written from scratch for Node.js Affected versions of this package are vulnerable to HTTP Request Smuggling due to the interceptors.retry flow in lib/handler/retry-handler.js. An attacker can cause a proxy or gateway that forwards Undici responses to emit...