CVE-2026-113795
Description
A flaw was found in pypdf. A remote attacker could cause a Denial of Service (DoS) by convincing a user or application to process a specially crafted PDF document. By providing a PDF stream configured with an excessive number of filters or filters that pass around large volumes of data, an attacker can trigger uncontrolled memory consumption, leading to application crashes.
Statement
This vulnerability is rated Moderate because successful exploitation results strictly in application denial of service without compromising system confidentiality or integrity, and it requires parsing an untrusted input file. Red Hat products incorporating pypdf—such as AI workloads and ingestion pipelines in OpenShift AI or Lightspeed—are primarily exposed when accepting external, user-supplied documents for text extraction or indexing. Deployments that do not process files from untrusted sources or where workloads run in isolated container environments with memory quotas remain protected from broader host disruption.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 5.5 | 5.5 | N/A |
| Attack Vector | Local | Local | N/A |
| Attack Complexity | Low | Low | N/A |
| Privileges Required | None | None | N/A |
| User Interaction | Required | Required | N/A |
| Scope | Unchanged | Unchanged | N/A |
| Confidentiality | None | None | N/A |
| Integrity Impact | None | None | N/A |
| Availability Impact | High | High | N/A |
Vector
Red Hat: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Understanding the Weakness (CWE)
Availability
Technical Impact: DoS: Resource Consumption (CPU); DoS: Resource Consumption (Memory); DoS: Resource Consumption (Other)
When allocating resources without limits, an attacker could prevent other systems, applications, or processes from accessing the same type of resource. It can be easy for an attacker to consume many resources by rapidly making many requests or causing larger resources to be used than is needed.
Frequently Asked Questions
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