onetwoseven-writeup

HTB OneTwoSeven — Full Walkthrough A complete, end-to-end walkthrough of OneTwoSeven , a retired HackTheBox Linux machine. The full chain: deterministic credential generation → symlink escape of an SFTP chroot → vim swap file recovery → SSH port-forwarding to a firewalled admin panel → bypass of...

CVE-2025-55130

CVE-2025-55130 - Node.js Permission Model Symlink Escape root@kitploit: / | | | | |/ \ / \ | | | | / | // \ | | || | || || || | | | | \ | \ \ | | | | | | |/|| \ ||| ||/||| | || | || | |/ |//||// Node.js Permission Model Bypass via Crafted Symlinks Discovered by natann @ JFrog Overview A path...

util-linux: util-linux: X-mount.subdir detached-tree resolution can escape via intermediate symlinks

The X-mount.subdir option uses a detached-tree fast path on Linux 6.15 and later and passes the configured subdirectory to opentree with ATSYMLINKNOFOLLOW. That flag does not stop intermediate symlink traversal or keep resolution inside the newly mounted filesystem. A local unprivileged user with...

CVE-2026-78409

A flaw in util-linux 's X-mount.subdir mount option allows a local unprivileged user to escape the intended subdirectory and attach an arbitrary host path at the intended mountpoint. On Linux 6.15 and later , the option takes a detached-tree fast path that calls open_tree() with AT_SYMLINK_NOFOLL...

CVE-2026-70622

A flaw was found in tar-rs. This vulnerability, a symlink escape, allows a local attacker to read sensitive files outside of the intended directory. By planting specially crafted symbolic links in an untrusted directory, an attacker can trick a privileged process, when archiving that directory,...

docker-cve-2022-39253-poc

docker host file read using cve-2022-39253 poc PoC reproduce environment root@kitploit: $ docker run --name=cve-2022-39253 -ti -d ssst0n3/dockerarchive:gitcve-2022-39253 $ docker attach --detach-keys ctrl-x cve-2022-39253 use ctrl-x to exit container's terminal wait minutes for environment starti...

CVE-2026-17106

CVE-2026-17106 — CopyEscape:docker cp container-to-host arbitrary file write HackSpeak distribution mirror. This repository is a distribution mirror of the CopyEscape PoC CVE-2026-17106 published by the Imperva Red Team Ron Masas , with the code identical to upstream; upstream does not include a...

CVE-2025-4517-tarfile-PATH_MAX-bypass

CVE-2025-4517 / CVE-2025-4330 — Python tarfile Data Filter Bypass via PATHMAX Overflow Author: 0xDTC CVEs: CVE-2025-4517 / CVE-2025-4330 Advisory: GHSA-6r6c-684h-9j7p CPython Fix: PR 135037 Overview Python's tarfile.extractallfilter="data" is supposed to safely extract tar archives by preventing...

CVE-2025-4138-4517-POC

CVE-2025-4138 / CVE-2025-4517 Python tarfile Filter Bypass via PATHMAX Symlink Escape Arbitrary file write throughfilter="data" / filter="tar" extraction Table of Contents Overview Vulnerability Details How It Works Affected Versio...

CVE-2026-48749

A flaw was found in Incus, a container and virtual machine manager. A crafted container image can use a symlink in the rootfs directory to read or write arbitrary files on the host, potentially leading to command execution. Mitigation No mitigation is needed as Incus is not shipped in any Red Hat...

Linux Distros Unpatched Vulnerability : CVE-2026-79676

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 path traversal vulnerability in corpus readers that reopen root- derived paths using built-in open instead of...

CVE-2026-79676

NLTK versions before 3.10.3 contain a path traversal vulnerability in corpus readers that reopen root-derived paths using built-in open instead of nltk.pathsec.open, allowing symlinks to escape trusted roots. Attackers who stage symlinked corpus files under a trusted data root can disclose...

CVE-2026-55540

PraisonAI is a multi-agent teams system. Prior to praisonai 4.6.51, ispathwithindirectory uses os.path.abspath rather than os.path.realpath for the workspace boundary. A symlink inside workspace can point outside and still pass the check, allowing readfile and other code tools to access files...

CVE-2026-79676

NLTK versions before 3.10.3 contain a path traversal vulnerability in corpus readers that reopen root-derived paths using built-in open instead of nltk.pathsec.open, allowing symlinks to escape trusted roots. Attackers who stage symlinked corpus files under a trusted data root can disclose...

EUVD-2026-65526

NLTK versions before 3.10.3 contain a path traversal vulnerability in corpus readers that reopen root-derived paths using built-in open instead of nltk.pathsec.open, allowing symlinks to escape trusted roots. Attackers who stage symlinked corpus files under a trusted data root can disclose...

CVE-2026-55540 PraisonAI: [Path Traversal] agent tools escape the configured workspace via symlinks

PraisonAI is a multi-agent teams system. Prior to praisonai 4.6.51, ispathwithindirectory uses os.path.abspath rather than os.path.realpath for the workspace boundary. A symlink inside workspace can point outside and still pass the check, allowing readfile and other code tools to access files...

CVE-2026-55540

CVE-2026-55540 is a path traversal vulnerability in PraisonAI , a multi-agent teams system. The function is_path_within_directory() relies on os.path.abspath() instead of os.path.realpath() to enforce the workspace boundary, so a symlink placed inside the workspace can resolve to a path outside i...

CVE-2026-55540 PraisonAI: [Path Traversal] agent tools escape the configured workspace via symlinks

PraisonAI is a multi-agent teams system. Prior to praisonai 4.6.51, ispathwithindirectory uses os.path.abspath rather than os.path.realpath for the workspace boundary. A symlink inside workspace can point outside and still pass the check, allowing readfile and other code tools to access files...

CVE-2026-70626

NLTK versions before 3.9.4 contain a symlink escape vulnerability in CorpusReader.open that allows local attackers to read arbitrary files outside the corpus root. The vulnerability exists because path validation is lexical and does not account for symlink resolution, enabling attackers to place...

CVE-2026-70626

NLTK versions before 3.9.4 contain a symlink escape vulnerability in CorpusReader.open that allows local attackers to read arbitrary files outside the corpus root. The vulnerability exists because path validation is lexical and does not account for symlink resolution, enabling attackers to place...