CVE Watch4 ago 2026

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

CVSS

7.4

Alto

EPSS

0.6%

p46

KEV

—

Exploit Today

0-100

Publicado: 29 jul 2026 · Última mod.: 4 ago 2026 · CWE-200 · CWE-248 · CWE-525

EPSS · 30d

0.5%EPSS · 30 días0.6%

2026-09-212026-10-19

Descripción técnica

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.

Referencias oficiales

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