archive-zip up to 1.24.11/1.25.5 ZIP Archive algorithmic complexity

Summaryinfo

A vulnerability has been found in archive-zip up to 1.24.11/1.25.5 and classified as problematic. This impacts an unknown function of the component ZIP Archive Handler. This manipulation causes algorithmic complexity. This vulnerability is tracked as CVE-2025-61728. The attack is possible to be carried out remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as problematic was found in archive-zip up to 1.24.11/1.25.5. Affected by this vulnerability is an unknown part of the component ZIP Archive Handler. The manipulation with an unknown input leads to a algorithmic complexity vulnerability. The CWE definition for the vulnerability is CWE-407. An algorithm in a product has an inefficient worst-case computational complexity that may be detrimental to system performance and can be triggered by an attacker, typically using crafted manipulations that ensure that the worst case is being reached. As an impact it is known to affect availability. The summary by CVE is:

archive/zip uses a super-linear file name indexing algorithm that is invoked the first time a file in an archive is opened. This can lead to a denial of service when consuming a maliciously constructed ZIP archive.

This vulnerability is known as CVE-2025-61728 since 09/30/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. 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 297011 (SUSE SLES15 Security Update : go1.25-openssl (SUSE-SU-2026:0297-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 1.24.12 or 1.25.6 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (297011), EUVD (EUVD-2025-206432) and CERT Bund (WID-SEC-2026-0129). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

• Red Hat Enterprise Linux
• Red Hat OpenShift
• Splunk Splunk Enterprise
• Dell integrated Dell Remote Access Controller
• Red Hat Ansible Automation Platform
• Google Container-Optimized OS
• Amazon Linux 2
• SUSE Linux
• Oracle Linux
• SUSE openSUSE
• RESF Rocky Linux
• IBM App Connect Enterprise
• Red Hat OpenStack
• IBM DB2
• Golang Go
• Open Source CoreDNS
• IBM Business Automation Workflow

Productinfo

Name

• archive-zip

Version

• 1.24.0
• 1.24.1
• 1.24.2
• 1.24.3
• 1.24.4
• 1.24.5
• 1.24.6
• 1.24.7
• 1.24.8
• 1.24.9
• 1.24.10
• 1.24.11
• 1.25.0
• 1.25.1
• 1.25.2
• 1.25.3
• 1.25.4
• 1.25.5

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion