EUVD-2026-67077

NLTK: Downloader.download follows hardlinks and overwrites outside-root files...

NLTK: Downloader.download follows hardlinks and overwrites outside-root files

Summary NLTK's downloader now blocks symlink escapes during ZIP extraction, but it still treats pre-existing hardlinks inside the install tree as ordinary in-root files. A normal package install can therefore overwrite an outside-root inode through that hardlink. Details - Vulnerability type:...

CVE-2026-81727

A flaw was found in NLTK. This vulnerability, a filesystem containment bypass, allows a local attacker with write access to a shared downloader directory to create special links hardlinks that point to files outside the intended installation area. When a package is extracted, these hardlinks can...

GHSA-4XW3-JF9X-X7MF Duplicate Advisory: Downloader.download follows hardlinks and overwrites outside-root files

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-f794-5jv7-7672. This link is maintained to preserve external references. Original Description NLTK versions before 3.10.3 contain a filesystem containment bypass vulnerability in the Downloader.download and...

Duplicate Advisory: Downloader.download follows hardlinks and overwrites outside-root files

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-f794-5jv7-7672. This link is maintained to preserve external references. Original Description NLTK versions before 3.10.3 contain a filesystem containment bypass vulnerability in the Downloader.download and...

CVE-2026-81727

NLTK versions before 3.10.3 contain a filesystem containment bypass vulnerability in the Downloader.download and Downloader.incrdownload methods that allows attackers to overwrite files outside the install root through pre-existing hardlinks. Attackers with write access to a shared downloader...

CVE-2026-81727

NLTK versions before 3.10.3 contain a filesystem containment bypass vulnerability in the Downloader.download and Downloader.incrdownload methods that allows attackers to overwrite files outside the install root through pre-existing hardlinks. Attackers with write access to a shared downloader...

CVE-2026-81727

NLTK versions before 3.10.3 contain a filesystem containment bypass vulnerability in the Downloader.download and Downloader.incrdownload methods that allows attackers to overwrite files outside the install root through pre-existing hardlinks. Attackers with write access to a shared downloader...

CVE-2026-81727 NLTK before 3.10.3 Hardlink File Overwrite via downloader

NLTK versions before 3.10.3 contain a filesystem containment bypass vulnerability in the Downloader.download and Downloader.incrdownload methods that allows attackers to overwrite files outside the install root through pre-existing hardlinks. Attackers with write access to a shared downloader...

Linux Distros Unpatched Vulnerability : CVE-2026-81727

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - NLTK versions before 3.10.3 contain a filesystem containment bypass vulnerability in the Downloader.download and Downloader.incrdownload methods that allows...

PT-2026-82622

Name of the Vulnerable Software and Affected Versions NLTK versions prior to 3.10.3 Description A filesystem containment bypass exists in the Downloader.download and Downloader.incr download methods. Attackers with write access to a shared downloader directory can create hardlinks pointing to fil...

Security update for python-unearth (important)

openSUSE security update: security update for python-unearth ------------------------------------------------------------- Announcement ID: openSUSE-SU-2026:21606-1 Rating: important References: bsc1275440 Cross-References: CVE-2026-73030 Affected Products: openSUSE Leap 16.0...

GHSA-7PQW-9J4J-H8Q3 extract-zip allows arbitrary file writes through symlink archive entries

extract-zip through 2.0.1 containment-checks only the parent directory of each archive entry and never the entry's own final path component, so an archive containing two entries with identical names - a symlink whose target is outside the destination, followed by a regular file - writes through t...

CVE-2026-62992

Smarty (PHP template engine) prior to 5.8.2 and 4.5.7 (4.x line) is affected by a symlink path-traversal in Security::_checkDir() that does not fully resolve symbolic links before validating the directory containment. An attacker who can place or reference a symlink inside a trusted Smarty direct...

CVE-2026-62992 Smarty: Symlink path traversal out of trusted directories

Smarty is a template engine for PHP, facilitating the separation of presentation HTML/CSS from application logic. Prior to 5.8.2 and 4.5.7 on the 4.x line, Security::checkDir does not fully resolve symbolic links before validating that a requested path lies within a configured secure directory. A...

GHSA-J6HM-V3X2-QV6J land.oras:oras-java-sdk: Symlink-based path traversal in ArchiveUtils.untar / unzip allows arbitrary file write outside extraction directory

Summary ArchiveUtils.untarInputStream, Path and ArchiveUtils.unzipInputStream, Path in land.oras:oras-java-sdk create symbolic-link entries from an archive without validating the symlink target. A malicious tar or zip shipped as an OCI layer blob can place a symlink under the extraction directory...

GHSA-8MG9-J9CF-54CJ OpenClaw: Empty-scope device re-pairing could confuse caller scope containment

Summary Empty-scope device re-pairing could confuse caller scope containment. In affected versions, a device re-pairing request with an empty scope set could skip the intended containment guard during re-pairing. This advisory is scoped to the named feature and configuration. It does not change...

Duplicate Advisory: Empty-scope device re-pairing could confuse caller scope containment

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-8mg9-j9cf-54cj. This link is maintained to preserve external references. Original Description OpenClaw before 2026.4.25 contains a scope containment bypass vulnerability in device re-pairing that allows...

CVE-2026-53852 OpenClaw < 2026.4.25 - Scope Bypass via Empty-Scope Device Re-pairing

OpenClaw before 2026.4.25 contains a scope containment bypass vulnerability in device re-pairing that allows authenticated operators to restore broader scopes than intended by submitting empty-scope re-pairing requests. Attackers can exploit this by sending re-pairing requests with empty scope se...

CVE-2026-48544

Taipy 4.1.1, fixed in commit 129fd40, contains a path traversal vulnerability in the ElementLibrary.getresource method in taipy/gui/extension/library.py that allows unauthenticated attackers to escape the intended module directory by exploiting an incomplete path containment check using...