Malicious code in @onereach/si-switch (npm)

npm/@onereach/si-switch is affected by the large-scale, self-propagating npm supply-chain worm of 2026-08-04 the "Shai-Hulud: Here We Go Again" wave — the same campaign that began with the compromise of the keyv and cacheable maintainer account. The listed versions were trojanized and republished...

MAL-2026-11599 Malicious code in @onereach/font-icons (npm)

npm/@onereach/font-icons is affected by the large-scale, self-propagating npm supply-chain worm of 2026-08-04 the "Shai-Hulud: Here We Go Again" wave — the same campaign that began with the compromise of the keyv and cacheable maintainer account. The listed versions were trojanized and republishe...

MAL-2026-11765 Malicious code in @ornikar/postcss-config (npm)

npm/@ornikar/postcss-config is affected by the large-scale, self-propagating npm supply-chain worm of 2026-08-04 the "Shai-Hulud: Here We Go Again" wave — the same campaign that began with the compromise of the keyv and cacheable maintainer account. The listed versions were trojanized and...

Embedded Malicious Code

Overview Affected versions of this package are vulnerable to Embedded Malicious Code. This package was involved in a supply chain compromise that affected multiple namespaces on the npm registry, including popular caching and key-value storage utilities. A malicious actor compromised a maintainer...

Embedded Malicious Code

Overview Affected versions of this package are vulnerable to Embedded Malicious Code. This package was involved in a supply chain compromise that affected multiple namespaces on the npm registry, including popular caching and key-value storage utilities. A malicious actor compromised a maintainer...

Embedded Malicious Code

Overview Affected versions of this package are vulnerable to Embedded Malicious Code. This package was involved in a supply chain compromise that affected multiple namespaces on the npm registry, including popular caching and key-value storage utilities. A malicious actor compromised a maintainer...

Embedded Malicious Code

Overview Affected versions of this package are vulnerable to Embedded Malicious Code. This package was involved in a supply chain compromise that affected multiple namespaces on the npm registry, including popular caching and key-value storage utilities. A malicious actor compromised a maintainer...

Duplicate Advisory: NLTK: Missing Post-Download Integrity Verification Allows Malicious Package Injection

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-5wp5-5229-5g6q. This link is maintained to preserve external references. Original Description In nltk version 3.9.4, the nltk.downloader.Downloader.downloadpackage function writes downloaded package bytes to dis...

GHSA-PV39-QRFQ-G8GC Duplicate Advisory: NLTK: Missing Post-Download Integrity Verification Allows Malicious Package Injection

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-5wp5-5229-5g6q. This link is maintained to preserve external references. Original Description In nltk version 3.9.4, the nltk.downloader.Downloader.downloadpackage function writes downloaded package bytes to dis...

UBUNTU-CVE-2026-12259

In nltk version 3.9.4, the nltk.downloader.Downloader.downloadpackage function writes downloaded package bytes to disk and may extract them before enforcing SHA-256 or MD5 checksum validation. This allows an attacker to tamper with the package response body for info.url through a compromised...

CVE-2026-12259

In nltk version 3.9.4, the nltk.downloader.Downloader.downloadpackage function writes downloaded package bytes to disk and may extract them before enforcing SHA-256 or MD5 checksum validation. This allows an attacker to tamper with the package response body for info.url through a compromised...

CVE-2026-12259

In nltk version 3.9.4, the nltk.downloader.Downloader.downloadpackage function writes downloaded package bytes to disk and may extract them before enforcing SHA-256 or MD5 checksum validation. This allows an attacker to tamper with the package response body for info.url through a compromised...

CVE-2026-12259 Improper Input Validation in nltk/nltk

In nltk version 3.9.4, the nltk.downloader.Downloader.downloadpackage function writes downloaded package bytes to disk and may extract them before enforcing SHA-256 or MD5 checksum validation. This allows an attacker to tamper with the package response body for info.url through a compromised...

CVE-2026-12259

The CVE affects nltk 3.9.4: nltk.downloader.Downloader._download_package() can write package bytes to disk and may extract them before SHA-256/MD5 checks, enabling tampering via compromised mirrors or proxies. This could lead to installation of attacker-controlled package bytes (potentially malic...

CVE-2026-12259 Improper Input Validation in nltk/nltk

In nltk version 3.9.4, the nltk.downloader.Downloader.downloadpackage function writes downloaded package bytes to disk and may extract them before enforcing SHA-256 or MD5 checksum validation. This allows an attacker to tamper with the package response body for info.url through a compromised...

CVE-2026-12259

In nltk version 3.9.4, the nltk.downloader.Downloader.downloadpackage function writes downloaded package bytes to disk and may extract them before enforcing SHA-256 or MD5 checksum validation. This allows an attacker to tamper with the package response body for info.url through a compromised...

Improper Validation of Integrity Check Value

Overview nltk is a Natural Language Toolkit NLTK is a Python package for natural language processing. Affected versions of this package are vulnerable to Improper Validation of Integrity Check Value in nltk/downloader.py through the Downloader.downloadpackage download-and-extract flow. An attacke...

PT-2026-67013

Name of the Vulnerable Software and Affected Versions nltk version 3.9.4 Description The nltk.downloader.Downloader. download package function writes downloaded package bytes to disk and may extract them before enforcing SHA-256 or MD5 checksum validation. This allows an attacker to tamper with t...

CVE-2026-12259: Download of Code Without Integrity Check

In nltk version 3.9.4, the nltk.downloader.Downloader.downloadpackage function writes downloaded package bytes to disk and may extract them before enforcing SHA-256 or MD5 checksum validation. This allows an attacker to tamper with the package response body for info.url through a compromised...

Silver Fox Targets Japanese Manufacturer with 3-Driver BYOVD Chain and ValleyRAT

The Chinese cybercrime group known as Silver Fox has been observed using new drivers as part of bring your own vulnerable driver BYOVD attacks targeting a Japanese organization in the industrial manufacturing sector to ultimately deliver ValleyRAT aka Winos 4.0 for persistent remote access. "In...