CVE-2026-44722
📛 CVE Title
(no title)
Description
pyzipper has an encryption bypass for small files encrypted using it
Overview
- State
- —
- Assigner (CNA)
- —
- CVSS severity
- medium
- CVSS score
- 6.2 / 10
- CVSS vector
AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N- Effective score
- 6.2 / 10 MEDIUM source: CNA overview
- CWE(s)
- —
- Reserved
- —
- Published
- —
- Last updated
- —
- Source
- https://www.tenable.com/cve/CVE-2026-44722
NVD / KEV / EPSS data refreshed 2026-05-25 00:13 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.
European Union Vulnerability Database ENISA EUVD
ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.
- EUVD ID
-
EUVD-2026-45221 - Assigner
- GitHub_M
- Published
- Jul 17, 2026, 4:42:01 PM
- Updated
- Jul 17, 2026, 5:25:08 PM
- EUVD base score (CVSS 3.1)
-
6.2 / 10
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - EUVD-reported EPSS
- 0.0900
- Vendors
- danifus
- Products
-
pyzipper (< 0.4.0)
- Aliases
-
GHSA-crqm-m339-7m2p,PYSEC-2026-3044
ENISA description: pyzipper is a replacement for Python's zipfile that can read and write AES encrypted zip files. Prior to 0.4.0, a Python operator precedence bug in pyzipper/zipfile_aes.py caused the AE-2 format to never be automatically selected during encryption, causing encrypted entries to be written in AE-1 format and exposing the plaintext CRC32 checksum in the ZIP header and, for unseekable zip archives, in the datadescripter section, allowing an attacker who possesses the archive to brute-force candidate plaintexts for small or low-entropy files by comparing CRC32 values. This issue is fixed in version 0.4.0.
Vendor references (0)
References embedded in the original CVE record by the assigning CNA.
None in the CVE record.
Web references (2)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
- https://nvd.nist.gov/vuln/detail/CVE-2026-44722 tenable:nvd.nist.gov
- https://www.cve.org/CVERecord?id=CVE-2026-44722 tenable:www.cve.org
Remediations (10)
-
web:blog.qualys.com
Oracle released its second quarterly edition of this year's Critical Patch Update. The update received patches for 481 security vulnerabilities.
2026-05-26 03:08 UTC -
web:blogs.oracle.com
For more information about the Critical Patch Update program, see the security vulnerability remediation practices page located on the Oracle Trust Center.
2026-05-26 03:08 UTC -
web:cyberpress.org
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added two actively exploited Microsoft Defender vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog, issuing an urgent remediation directive for federal agencies with a due date of June 3, 2026 .
2026-05-26 03:08 UTC -
web:support.microsoft.com
Summary Improvements and fixes included in this update How to obtain and install the update More information File information Information about protection and security Summary This security update contains fixes and resolves vulnerabilities. To learn more about the vulnerabilities, see the following security advisories: CVE - 2026 -32167 - SQL Server Elevation of Privilege Vulnerability CVE-2026 ...
2026-05-26 03:08 UTC -
web:threatprotect.qualys.com
Oracle released its second quarterly edition of this year's Critical Patch Update. The update received patches for 481 security vulnerabilities. Some of the vulnerabilities addressed in this update impact more than one product. These patches address vulnerabilities in various product families, including third-party components in Oracle products.
2026-05-26 03:08 UTC -
web:www.crowdstrike.com
Microsoft's April 2026 Patch Tuesday addresses 164 CVEs , featuring 8 Critical vulnerabilities, one exploited zero-day, and one disclosed zero-day.
2026-05-26 03:08 UTC -
web:www.oracle.com
Critical Security Patch Updates Critical Security Patch Updates provide security patches for supported Oracle on-premises products. A Critical Security Patch Update provides targeted, high-priority security fixes in a smaller, more focused format, making them easier to apply with minimal disruption.
2026-05-26 03:08 UTC -
web:www.oracle.com
This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.
2026-05-26 03:08 UTC -
web:www.oracle.com
Oracle Critical Patch Update Advisory - January 2026 Description A Critical Patch Update is a collection of patches for multiple security vulnerabilities. These patches address vulnerabilities in Oracle code and in third party components included in Oracle products. These patches are usually cumulative, but each advisory describes only the security patches added since the previous Critical ...
2026-05-26 03:08 UTC -
web:www.securityweek.com
Oracle on Tuesday announced the release of 481 new security patches as part of its April 2026 Critical Patch Update (CPU). Across the 28 product families that received security updates, more than 300 patches address vulnerabilities that are remotely exploitable without authentication.
2026-05-26 03:08 UTC
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