[GHSA] GHSA-23w6-3w8w-8484 (medium) — pypdf: Possible long runtimes/large memory usage when retrieving outlines

GHSA-23w6-3w8w-8484 Severity: medium CVE: CVE-2026-84310

pypdf: Possible long runtimes/large memory usage when retrieving outlines

### Impact

An attacker who uses this vulnerability can craft a PDF which leads to long runtimes and large memory consumption. This requires accessing the outlines of a document with either lots of entries or nested outlines with long re-used nesting paths.

### Patc