pypdf: pypdf is a free and open-source pure-python PDF library
CVE-2026-115580 is fixed in pypdf on 1 platform by DEBIAN-CVE-2026-115580 (version 6.21.4-1), released November 6, 2026. It is not reported as exploited. Patch Radar priority: Routine.
pypdf is a free and open-source pure-python PDF library. Prior to 6.21.2, an attacker can craft a PDF with a standard cross-reference table whose declared entry count exceeds what the file can contain, causing excessive processing and long runtimes when the file is opened. This issue is fixed in version 6.21.2.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| pypdf · Debian 14 | 6.21.4-1 | DEBIAN-CVE-2026-115580 | Nov 6, 2026 |
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