pypdf: pypdf is a free and open-source pure-python PDF library
CVE-2026-31826 is fixed in pypdf on 1 platform by DEBIAN-CVE-2026-31826 (version 6.9.0-1), released March 10, 2026. It is not reported as exploited. Patch Radar priority: Routine.
pypdf is a free and open-source pure-python PDF library. Prior to 6.8.0, an attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing a content stream with a rather large /Length value, regardless of the actual data length inside the stream. This vulnerability is fixed in 6.8.0.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| pypdf · Debian 14 | 6.9.0-1 | DEBIAN-CVE-2026-31826 | Mar 10, 2026 |
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