py-pdf pypdf up to 5.x resource consumption

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in py-pdf pypdf up to 5.x. This affects an unknown part. The manipulation leads to resource consumption. This vulnerability is traded as CVE-2025-55197. It is possible to initiate the attack remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in py-pdf pypdf up to 5.x. This issue affects an unknown functionality. The manipulation with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability. The summary by CVE is:

pypdf is a free and open-source pure-python PDF library. Prior to version 6.0.0, an attacker can craft a PDF which leads to the RAM being exhausted. This requires just reading the file if a series of FlateDecode filters is used on a malicious cross-reference stream. Other content streams are affected on explicit access. This issue has been fixed in 6.0.0. If an update is not possible, a workaround involves including the fixed code from pypdf.filters.decompress into the existing filters file.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2025-55197 since 08/08/2025. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 260000 (Linux Distros Unpatched Vulnerability : CVE-2025-55197), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.0.0 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (260000) and CERT Bund (WID-SEC-2026-1730). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Xerox FreeFlow Print Server

Productinfo

Vendor

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 260000
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-55197

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: pypdf 6.0.0
Patch: github.com

Timelineinfo

08/08/2025 CVE reserved
08/14/2025 +6 days Advisory disclosed
08/14/2025 +0 days VulDB entry created
05/31/2026 +290 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-7hfw-26vp-jp8m
Status: Confirmed

CVE: CVE-2025-55197 (🔒)
GCVE (CVE): GCVE-0-2025-55197
GCVE (VulDB): GCVE-100-320069
CERT Bund: WID-SEC-2026-1730 - Xerox FreeFlow Print Server: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff

Entryinfo

Created: 08/14/2025 07:36
Updated: 05/31/2026 07:24
Changes: 08/14/2025 07:36 (70), 08/14/2025 12:28 (1), 08/15/2025 02:29 (1), 08/16/2025 05:50 (11), 09/01/2025 05:28 (2), 05/31/2026 07:24 (7)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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