NLTK: Corpus readers follow symlinks outside trusted roots despite pathsec enforcement

Summary Several corpus readers still step outside NLTK's symlink-aware trusted-root model. They derive in-root paths from trusted corpus state, convert those paths back into plain strings, and reopen them with built-in open rather than nltk.pathsec.open. Details - Vulnerability type: Path travers...

GHSA-P4RW-RVV2-7XWR NLTK: Corpus readers follow symlinks outside trusted roots despite pathsec enforcement

Summary Several corpus readers still step outside NLTK's symlink-aware trusted-root model. They derive in-root paths from trusted corpus state, convert those paths back into plain strings, and reopen them with built-in open rather than nltk.pathsec.open. Details - Vulnerability type: Path travers...

EUVD-2026-65526

NLTK: Corpus readers follow symlinks outside trusted roots despite pathsec enforcement...

NLTK: Symlink-based arbitrary file read in IPIPANCorpusReader, bypasses nltk.pathsec entirely

Summary IPIPANCorpusReader nltk/corpus/reader/ipipan.py exposes public methods, channels, domains, categories, and fileidschannels=..., that accept a caller supplied fileids list and read a file via a completely unprotected builtin open call, with no nltk.pathsec involvement at all. A symlink...

GHSA-3HHW-38PF-PXJ6 NLTK: Symlink-based arbitrary file read in IPIPANCorpusReader, bypasses nltk.pathsec entirely

Summary IPIPANCorpusReader nltk/corpus/reader/ipipan.py exposes public methods, channels, domains, categories, and fileidschannels=..., that accept a caller supplied fileids list and read a file via a completely unprotected builtin open call, with no nltk.pathsec involvement at all. A symlink...

EUVD-2026-64339

NLTK: Symlink-based arbitrary file read in IPIPANCorpusReader, bypasses nltk.pathsec entirely...

NLTK: Symlink-based sandbox bypass in FramenetCorpusReader (bypasses the fix for CVE-2026-54292)

This is a new, distinct vulnerability: a bypass of the fix already published as GHSA-xh95-f55m-82fw "Path traversal in NLTK FramenetCorpusReader.frame allows arbitrary XML file read, bypassing the nltk.pathsec sandbox", not a duplicate of it. Summary The original advisory was fixed PR 3581 by...

EUVD-2026-64338

NLTK: Symlink-based sandbox bypass in FramenetCorpusReader bypasses the fix for CVE-2026-54292...

GHSA-F833-7JW8-XWRV NLTK: Symlink-based sandbox bypass in FramenetCorpusReader (bypasses the fix for CVE-2026-54292)

This is a new, distinct vulnerability: a bypass of the fix already published as GHSA-xh95-f55m-82fw "Path traversal in NLTK FramenetCorpusReader.frame allows arbitrary XML file read, bypassing the nltk.pathsec sandbox", not a duplicate of it. Summary The original advisory was fixed PR 3581 by...

Important: Red Hat Security Advisory: libvirt security update

An update for libvirt is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

libvirt: swtpm privilege escalation via symlink following

A flaw was found in libvirt. A local attacker, specifically a process running as the confined swtpm user, could exploit a symlink-following vulnerability in the virFileChownFiles function. By planting a symbolic link within the swtpm state directory, the attacker could trick the root-level libvir...

EUVD-2026-64314

NLTK: Symlink escape in CorpusReader allows arbitrary local file read outside the corpus root...

NLTK: Symlink escape in CorpusReader allows arbitrary local file read outside the corpus root

Summary nltk.corpus.reader.api.CorpusReader.open can be used to read files outside the intended corpus root via a symlink placed inside that root. Although NLTK blocks absolute paths and .. traversal, the current boundary check is only lexical and does not account for symlink resolution. This lea...

GHSA-R6GQ-WHWQ-MVG9 NLTK: Symlink escape in CorpusReader allows arbitrary local file read outside the corpus root

Summary nltk.corpus.reader.api.CorpusReader.open can be used to read files outside the intended corpus root via a symlink placed inside that root. Although NLTK blocks absolute paths and .. traversal, the current boundary check is only lexical and does not account for symlink resolution. This lea...

CVE-2026-74859

The shell theme installer in gnome-tweaks extracts user-supplied ZIP archives without validating archive member paths. As a result, a crafted theme archive can write files outside /.themes by using ../ path traversal, absolute paths, or symlink entries...

DEBIAN-CVE-2026-74859

The shell theme installer in gnome-tweaks extracts user-supplied ZIP archives without validating archive member paths. As a result, a crafted theme archive can write files outside /.themes by using ../ path traversal, absolute paths, or symlink entries...

EUVD-2026-72673

The shell theme installer in gnome-tweaks extracts user-supplied ZIP archives without validating archive member paths. As a result, a crafted theme archive can write files outside /.themes by using ../ path traversal, absolute paths, or symlink entries...

CVE-2026-74859 Gnome-tweaks: path traversal in theme installer

The shell theme installer in gnome-tweaks extracts user-supplied ZIP archives without validating archive member paths. As a result, a crafted theme archive can write files outside /.themes by using ../ path traversal, absolute paths, or symlink entries...

CVE-2026-74859

The shell theme installer in gnome-tweaks extracts user-supplied ZIP archives without validating archive member paths. As a result, a crafted theme archive can write files outside /.themes by using ../ path traversal, absolute paths, or symlink entries...

libvirt: swtpm privilege escalation via symlink following

A flaw was found in libvirt. A local attacker, specifically a process running as the confined swtpm user, could exploit a symlink-following vulnerability in the virFileChownFiles function. By planting a symbolic link within the swtpm state directory, the attacker could trick the root-level libvir...