CVE-2026-93748 — http-cache-semantics through 4.2.0 Cross-User Cache Disclosure via max-stale
http-cache-semantics through 4.2.0 fails to properly validate security-zeroed cache entries when processing client max-stale directives, allowing unauthenticated attackers to re…
Published: 2026-09-18 · CVSS: 8.7 · CVSS 4.0
http-cache-semantics through 4.2.0 fails to properly validate security-zeroed cache entries when processing client max-stale directives, allowing unauthenticated attackers to retrieve cached responses belonging to other users. Attackers can request the same URL with a large max-stale value to obtain another user's Set-Cookie session credentials from shared-cache entries that were deliberately zeroed for security reasons.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7