CVE-2026-57204
Last modified
CVE-2026-57204 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. pypdf is a free and open-source pure-python PDF library. Prior to 6.13.3, a maliciously crafted PDF can cause DoS. EPSS estimates a 0.26% chance of exploitation in the next 30 days.
Description
pypdf is a free and open-source pure-python PDF library. Prior to 6.13.3, a maliciously crafted PDF can cause DoS. An attacker who uses this vulnerability can craft a PDF which leads to large memory usage, as MAX_DECLARED_STREAM_LENGTH is sometimes ignored. This requires parsing a content stream without a /Length value. This issue has been fixed in version 6.13.3.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Pypdf Project | Pypdf | < 6.13.3 |
References
- https://github.com/py-pdf/pypdf/releases/tag/6.13.3Product, Release Notes
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-jm82-fx9c-mx94Patch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-57204?
How severe is CVE-2026-57204?
How do I fix CVE-2026-57204?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-57167PeerTube is an ActivityPub-federated video streaming platfor…5.1
- CVE-2026-5717The VI: Include Post By plugin for WordPress is vulnerable t…6.4
- CVE-2026-57172DataEase is an open source data visualization and analysis t…8.3
- CVE-2026-5718The Drag and Drop Multiple File Upload for Contact Form 7 pl…8.1
- CVE-2026-5719A flaw has been found in itsourcecode Construction Managemen…6.3
- CVE-2026-5720miniupnpd contains an integer underflow vulnerability in SOA…9.1
- CVE-2026-57205SimpleChat is a secure AI conversation application with pers…4.3
- CVE-2026-57206SimpleChat is a secure AI conversation application with pers…8.6
- CVE-2026-5721The wpDataTables – WordPress Data Table, Dynamic Tables & Ta…4.7
- CVE-2026-57211RabbitMQ is a messaging and streaming broker. Prior to 4.1.1…10
- CVE-2026-57212RabbitMQ is a messaging and streaming broker. Prior to 3.13.…7.7
- CVE-2026-57213RabbitMQ is a messaging and streaming broker. Prior to 3.13.…4.8
Are you affected by CVE-2026-57204?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST