Moderate severityGHSA Advisory· Published Jun 16, 2026· Updated Jun 16, 2026
pypdf: Possible large memory usage for form XObjects during text extraction
CVE-2026-49461
Description
Impact
An attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires extracting the text of a page which contains a form XObject with self-references.
Patches
This has been fixed in pypdf==6.12.2.
Workarounds
If you cannot upgrade yet, consider applying the changes from PR #3805.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
pypdfPyPI | < 6.12.2 | 6.12.2 |
Affected products
2Patches
Vulnerability mechanics
References
4News mentions
0No linked articles in our index yet.