CVE-2026-102998
8.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Summary
pypdf is a free and open-source pure-python PDF library. Prior to 6.19.0, a crafted PDF with form field values can cause pypdf/generic/_appearance_stream.py appearance-stream generation to repeat invariant selection-data work inside a loop when an application updates fields with flattening enabled, resulting in excessive runtimes and application unavailability. This issue is fixed in version 6.19.0.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| py-pdf | pypdf | < 6.19.0 | affected |
Weaknesses
- CWE-400: CWE-400: Uncontrolled Resource Consumption
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: yes
- Technical Impact: partial
References
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-php9-fj8v-98fj
- https://github.com/py-pdf/pypdf/pull/4087
- https://github.com/py-pdf/pypdf/commit/959467a9b95be83e2dc5ae873ece5f371263ede7
- https://github.com/py-pdf/pypdf/releases/tag/6.19.0
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