CVE-2023-46250
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-46250
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-46250.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2023-46250
- Aliases
- Downstream
- Published
- 2023-10-31T15:23:32.852Z
- Modified
- 2025-11-29T14:45:59.883663Z
- Severity
-
- 5.1 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- pypdf possible Infinite Loop when PdfWriter(clone_from) is used with a PDF
- Details
-
pypdf is a free and open-source pure-python PDF library. An attacker who uses a vulnerability present in versions 3.7.0 through 3.16.4 can craft a PDF which leads to an infinite loop. This infinite loop blocks the current process and can utilize a single core of the CPU by 100%. It does not affect memory usage. That is, for example, the case when the pypdf-user manipulates an incoming malicious PDF e.g. by merging it with another PDF or by adding annotations. The issue was fixed in version 3.17.0. As a workaround, apply the patch manually by modifying
pypdf/generic/_data_structures.py. - Database specific
{ "cna_assigner": "GitHub_M", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/46xxx/CVE-2023-46250.json", "cwe_ids": [ "CWE-835" ] }- References
-
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/46xxx/CVE-2023-46250.json
- https://github.com/py-pdf/pypdf/commit/9b23ac3c9619492570011d551d521690de9a3e2d
- https://github.com/py-pdf/pypdf/pull/2264
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-wjcc-cq79-p63f
- https://nvd.nist.gov/vuln/detail/CVE-2023-46250