undici vulnerable to cross-user information disclosure and parse-time crash via degenerate private cache directives

Summary Two issues in undici's cache interceptor, both fixed by the same patch on lib/util/cache.js: 1. Shared-cache disclosure: Responses with malformed qualified Cache-Control: private directives such as private="" or private="," can be incorrectly stored in the default shared cache, then serve...

undici: undici: Information disclosure and Denial of Service via malformed Cache-Control directives

A flaw was found in undici. This vulnerability allows for cross-user information disclosure when malformed Cache-Control private directives cause private response bodies and headers, such as Set-Cookie data, to be stored in a shared cache and subsequently exposed to other users. Additionally, a...

undici: undici: Information disclosure and Denial of Service via malformed Cache-Control directives

A flaw was found in undici. This vulnerability allows for cross-user information disclosure when malformed Cache-Control private directives cause private response bodies and headers, such as Set-Cookie data, to be stored in a shared cache and subsequently exposed to other users. Additionally, a...

UBUNTU-CVE-2026-13697

undici's cache interceptor mishandles malformed Cache-Control private directives. In undici 7.0.0 up to before 7.29.0 and 8.0.0 up to before 8.9.0, a response carrying a degenerate qualified private directive, such as private set to an empty value, can be stored in the default shared cache and...

CVE-2026-13697

undici's cache interceptor mishandles malformed Cache-Control private directives. In undici 7.0.0 up to before 7.29.0 and 8.0.0 up to before 8.9.0, a response carrying a degenerate qualified private directive, such as private set to an empty value, can be stored in the default shared cache and...