ALPINE-CVE-2026-87863

ALPINE-CVE-2026-87863

This page contains facts from public vulnerability sources. Check the original advisory before updating.

An authenticated HTTPS origin can supply an HSTS `max-age` value that the parser accepts, but time serialization later fails to process. On 64-bit systems, extreme max-age values compute an absolute expiry within standard time integer limits that exceeds calendar time structure bounds. During cache saves, the original HSTS file is truncated before writing a temporary replacement; when serialization fails, the temporary file is deleted, leaving an empty or partial cache. Because the save error is silently ignored during cleanup, curl exits successfully despite the data loss.

Fix available

Published

2026-10-20T21:17:20.380Z

Updated

2026-10-25T16:30:03.608279606Z

Stack: system

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