---
id: CVE-2025-62707
aliases:
  - GHSA-vr63-x8vc-m265
  - PYSEC-2026-1833
title: >-
  pypdf possibly loops infinitely when reading DCT inline images without EOF
  marker
summary: >-
  pypdf possibly loops infinitely when reading DCT inline images without EOF
  marker
severity: medium
vendor: pypdf
product: pypdf
ecosystem: pip
affected:
  - pypdf < 6.1.3
patched:
  - pypdf 6.1.3
published: '2025-10-22'
updated: '2026-09-10'
sourceUpdated: '2026-09-10T03:50:58.424138377Z'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-vr63-x8vc-m265'
references:
  - url: 'https://github.com/py-pdf/pypdf/security/advisories/GHSA-vr63-x8vc-m265'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2025-62707'
  - url: 'https://github.com/py-pdf/pypdf/pull/3501'
  - url: >-
      https://github.com/py-pdf/pypdf/commit/f2864d6dd9bac7cecd3f4f54308b25ebbfa178f8
  - url: 'https://github.com/py-pdf/pypdf'
  - url: 'https://github.com/py-pdf/pypdf/releases/tag/6.1.3'
tags:
  - osv
  - pip
epss: 0.00444
epssPercentile: 0.38048
ingestedAt: '2026-07-08T18:25:53.371Z'
---

## Overview

### Impact

An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires parsing the content stream of a page which has an inline image using the DCTDecode filter.

### Patches
This has been fixed in [pypdf==6.1.3](https://github.com/py-pdf/pypdf/releases/tag/6.1.3).

### Workarounds
If you cannot upgrade yet, consider applying the changes from PR [#3501](https://github.com/py-pdf/pypdf/pull/3501).

## Affected packages

- `pypdf < 6.1.3`

## Remediation

Upgrade to a patched release:

- `pypdf 6.1.3`