Withdrawn by the publisher.

Affected: CleanStart: langfuse-worker

Package langfuse-worker version 3.216.0-r1 fixes 29 vulnerabilities: ghsa-frvp-7c67-39w9, ghsa-p63j-vcc4-9vmv, ghsa-55q2-fjhq-7xh7, ghsa-c2j3-45gr-mqc4, CVE-2026-69192...

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 later served to a different caller with the same cache key, disclosing private response bodies and headers including Set-Cookie. Separately, a Cache-Control header that combines an unqualified private directive with a qualified one triggers an uncaught TypeError in the cache-control parser, which rejects the request and, depending on the consumer's error handling, can terminate the process. Both issues affect applications using the cache interceptor in shared mode, including the default configuration. The issues are fixed in undici 7.29.0 and 8.9.0.

Affected: npm: undici

### 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 served to a later caller with the same cache key. 2. **Parse-time crash:** Mixed unqualified-and-qualified `private` directives in the same header (such as `public, max-age=60, private, private="hdr"`) cause an uncaught `TypeError` in the cache-control parser, terminating the request.

### Impact

#### Shared-cache disclosure

Applications using `interceptors.cache()` in shared mode may cache a user-specific response and serve it to a later caller with the same cache key. This can disclose private response bodies and headers, including `Set-Cookie`.

Required conditions:

- the cache interceptor is enabled in shared mode, including the default configuration; - an upstream returns a malformed directive such as `Cache-Control: public, max-age=300, private=""`; - another request later matches the same cache key, without a separating `Vary` header.

#### Parse-time crash

Applications using `interceptors.cache()` against an upstream that returns a `Cache-Control` header combining unqualified `private` with qualified `private="..."` see an uncaught `TypeError: output.private.concat is not a function` during response handling. The request rejects; depending on the consumer's e…

undici: undici: Information disclosure and Denial of Service via malformed Cache-Control directives undici: undici: Cross-user information disclosure due to improper Cache-Control directive parsing undici: undici: HTTP header injection via unvalidated blob-like body type property undici: undici: Response desynchronization via retry interceptor with mismatched Content-Length undici: Undici: Cookie attribute injection allows bypassing security protections nodejs: Node.js: Permission Model flaw allows trace logs to bypass filesystem write restrictions nodejs: Node.js: mTLS client identities can be reused due to HTTPS Agent connection flaw nodejs: Information disclosure due to improper permission enforcement nodejs: HTTPS Agent TLS session reuse skips hostname verification nodejs: Node.js: Unauthorized filesystem access due to Permission Model enforcement flaw

Affected: Ubuntu:24.04:LTS: node-undici, Ubuntu:26.04:LTS: node-undici

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 later served to a different caller with the same cache key, disclosing private response bodies and headers including Set-Cookie. Separately, a Cache-Control header that combines an unqualified private directive with a qualified one triggers an uncaught TypeError in the cache-control parser, which rejects the request and, depending on the consumer's error handling, can terminate the process. Both issues affect applications using the cache interceptor in shared mode, including the default configuration. The issues are fixed in undici 7.29.0 and 8.9.0.

Ein Angreifer kann mehrere Schwachstellen in IBM App Connect Enterprise ausnutzen, um Informationen offenzulegen, um einen Denial of Service Angriff durchzuführen, um Daten zu manipulieren und um Sicherheitsvorkehrungen zu umgehen.