[SECURITY] [DLA 4681-1] p7zip security update

------------------------------------------------------------------------- Debian LTS Advisory DLA-4681-1 [email protected] https://www.debian.org/lts/security/ Sylvain Beucler July 13, 2026 https://wiki.debian.org/LTS -...

PYSEC-2026-2973 py7zr: O(n^2) algorithmic complexity DoS in PackInfo._read()

Summary PackInfo.read uses an On^2 cumulative sum pattern where numstreams is read directly from the archive header. A crafted .7z archive with a large numstreams value causes excessive CPU consumption during SevenZipFile.init — no extraction is needed. A 50 KB archive takes 7 seconds of CPU time...

PYSEC-2026-2974 py7zr: Arbitrary File Write Vulnerability

Summary There exists an arbitrary file write vulnerability in py7zr 1.1.0, latest, which allows symbolic links to be recreated outside the destination directory via crafted malicious symbolic link chains. When using extractall to extract an archive, the library restores these symbolic links,...

PYSEC-2026-2392 BBOT: Path traversal (Zip-Slip) in unarchive module - incomplete fix for CVE-2025-10284

The unarchive internal module's archive extraction commands perform no code-level validation on extracted file paths, relying entirely on the behavior of external tools e.g. GNU tar which varies by platform. While CVE-2025-10284 addressed git-specific RCE vectors, the underlying archive extractio...

PYSEC-2026-3044 pyzipper has an encryption bypass for small files encrypted using it

Impact A Python operator precedence bug in pyzipper/zipfileaes.py caused the AE-2 format to never be automatically selected during encryption, regardless of file size or compression type. As a result, all encrypted entries are written in AE-1 format unless AE-2 is explicitly forced by the caller...

PYSEC-2026-2875 pip has an interpretation conflict due to handling both concatenated tar and ZIP files as ZIP files

pip handles concatenated tar and ZIP files as ZIP files regardless of filename or whether a file is both a tar and ZIP file. This behavior could result in confusing installation behavior, such as installing "incorrect" files according to the filename of the archive. New behavior only proceeds wit...

PYSEC-2026-2899 PraisonAI Has Arbitrary File Write (Zip Slip) in Templates Extraction

The PraisonAI templates installation feature is vulnerable to a "Zip Slip" Arbitrary File Write attack. When downloading and extracting template archives from external sources e.g., GitHub, the application uses Python's zipfile.extractall without verifying if the files within the archive resolve...

PYSEC-2026-2856 OpenViking contains a Path Traversal vulnerability

OpenViking versions 0.2.1 and prior, fixed in commit 46b3e76, contain a path traversal vulnerability in the .ovpack import handling that allows attackers to write files outside the intended import directory. Attackers can craft malicious ZIP archives with traversal sequences, absolute paths, or...

Directory Traversal

Overview @makafeli/n8n-workflow-builder is a Model Context Protocol server for n8n workflow management Affected versions of this package are vulnerable to Directory Traversal in the updatenodefromfile of server.cjs when handling the filePath argument. An attacker can access arbitrary files and...

Linux Distros Unpatched Vulnerability : CVE-2026-58052

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 7-Zip for Windows through 26.01 fails to preserve the Mark-of-the-Web when extracting a crafted RAR5 archive, because its guard that suppresses an...

PT-2026-59512

pip handles concatenated tar and ZIP files as ZIP files regardless of filename or whether a file is both a tar and ZIP file. This behavior could result in confusing installation behavior, such as installing "incorrect" files according to the filename of the archive. New behavior only proceeds wit...

ClamAV 7Zip File Format Processing Out-of-Bounds Memory Corruption Vulnerability

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GHSA-9MQM-QCWF-5QHG CredSweeper: Recursive archive size-limit bypass in deep scanner allows crafted compressed inputs to exhaust resources

Summary CredSweeper's deep scanner does not enforce recursivelimitsize as a hard limit. Several recursive scanners fully decompress or fully read attacker-controlled content before the remaining budget is validated, and AbstractScanner.recursivescan continues processing even when the residual...

GHSA-XCPC-8H2W-3J85 adm-zip: Crafted ZIP file triggers 4GB memory allocation

adm-zip before 0.5.18 is vulnerable to denial of service via a crafted ZIP file with a manipulated uncompressed size header field. In zipEntry.js line 103, Buffer.alloccentralHeader.size allocates memory based on the declared uncompressed size from the ZIP central directory header without...

EUVD-2026-42960

adm-zip before 0.5.18 is vulnerable to denial of service via a crafted ZIP file with a manipulated uncompressed size header field. In zipEntry.js line 103, Buffer.alloccentralHeader.size allocates memory based on the declared uncompressed size from the ZIP central directory header without...

NPM: adm-zip: Crafted ZIP file triggers 4GB memory allocation

NPM: adm-zip: Crafted ZIP file triggers 4GB memory allocation vulnerability discovered by ? in WordPress Npm adm-zip versions 0.6.0...

adm-zip: Crafted ZIP file triggers 4GB memory allocation

adm-zip before 0.5.18 is vulnerable to denial of service via a crafted ZIP file with a manipulated uncompressed size header field. In zipEntry.js line 103, Buffer.alloccentralHeader.size allocates memory based on the declared uncompressed size from the ZIP central directory header without...

Allocation of Resources Without Limits or Throttling

Overview adm-zip is a JavaScript implementation for zip data compression for NodeJS. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in zipEntry.js and entryHeader.js, which size a Buffer.alloc call directly from the uncompressed-size field...

Allocation of Resources Without Limits or Throttling

Overview org.webjars.npm:adm-zip is a JavaScript implementation for zip data compression for NodeJS. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in zipEntry.js and entryHeader.js, which size a Buffer.alloc call directly from the...

CVE-2026-39244

adm-zip before 0.5.18 is vulnerable to denial of service via a crafted ZIP file with a manipulated uncompressed size header field. In zipEntry.js line 103, Buffer.alloccentralHeader.size allocates memory based on the declared uncompressed size from the ZIP central directory header without...