Description (CNA)
pypdf is a free and open-source pure-python PDF library. Prior to 6.21.2, an incomplete remediation for repeated malformed cross-reference entries in GHSA-55h5-xmcq-c37v could still trigger a complete PDF stream reload during each recovery attempt even when a recovery cache was present, causing crafted cross-reference streams to produce long runtimes. This issue is fixed in version 6.21.2.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| py-pdf / pypdf | affected < 6.21.2 |
CWE
CWE-400, CWE-407