A vulnerability in sblim-cmpi-base allows local unprivileged users to perform a symlink attack via insecure temporary file creation in provider registration scripts. This can lead to overwriting root-owned files if the scripts run with elevated privileges, potentially disrupting system services. Exploitation requires the ability to create symlinks in world-writable directories and is conditional on privileged script execution. The issue may be mitigated by sticky-directory symlink protections.
CVE-2026-16791 is a low-severity vulnerability in Lenovo XClarity Essentials OneCLI for Linux versions 5.5.0 and below. It involves insecure temporary file creation that could allow a local low-privileged attacker to overwrite or truncate arbitrary local files when the program is run with elevated privileges. The vulnerability does not impact confidentiality but can affect integrity and availability. No official patch or remediation guidance is currently available from the vendor. There are no known exploits in the wild at this time.
Flameshot is powerful yet simple to use screenshot software. Prior to 14.0.0, the Open With feature wrote screenshots to a predictable temporary path and followed symlinks, creating a time-of-check to time-of-use race that allowed a local unprivileged attacker on the same machine to pre-plant a symlink and cause Flameshot to write PNG data through it, overwriting any file the victim user could write. This issue is fixed in version 14.0.0.
Claude Code is an agentic coding tool. From 2.1.59 until 2.1.128, the Claude Code /copy command wrote responses to a hardcoded, predictable path (/tmp/claude/response.md) without UID isolation, randomness, or symlink protection. The file was created world-readable (0644) in a world-traversable directory (0755), allowing any local user to read a privileged user's Claude response, which could contain secrets or credentials. Additionally, because the path was static and predictable, a local attacker could pre-create the directory and plant a symlink at the expected file path, causing the privileged process to follow the symlink and overwrite an attacker-chosen file with the response text. Exploiting this required a local unprivileged user on the same system and a privileged user to run the /copy command. This vulnerability is fixed in 2.1.128.
GNU gzip contains a vulnerability in the gzexe utility related to insecure temporary file handling. When the mktemp utility is not available in the user’s PATH, gzexe falls back to constructing a temporary file path based solely on the process ID (PID). This predictable filename is created without exclusive access or existence checks.
A local attacker can pre‑create the predicted temporary file path as a symbolic link pointing to an arbitrary file writable by the victim. When gzexe runs, it follows the symlink and overwrites the target file, resulting in a time‑of‑check to time‑of‑use (TOCTOU) condition that allows arbitrary file overwrite.
This issue has been fixed in the commit 4e6f8b24ab823146ab8776f0b7fe486ab34d4269
Spring Boot's ArtemisEmbeddedConfigurationFactory uses a fixed, static path for the embedded Artemis message broker's data directory when no explicit path is configured. A local attacker on the same host can pre-create this predictable directory or place a symlink before the application starts.
Affected versions:
Spring Boot 4.0.0 through 4.0.6; 3.5.0 through 3.5.14; 3.4.0 through 3.4.16; 3.3.0 through 3.3.19; 2.7.0 through 2.7.33.
bit7z is a cross-platform C++ static library that allows the compression/extraction of archive files. Prior to version 4.0.12, there is an arbitrary file overwrite vulnerability via symlink attack on predictable temp files during archive update. This issue has been patched in version 4.0.12.
CVE-2026-39819 is a medium severity vulnerability in the Go toolchain's cmd/go component. The 'go bug' command creates temporary files with predictable names in the system temporary directory. This allows an attacker with access to that directory to create symbolic links with those names, potentially causing the command to overwrite unintended files. No official patch or remediation is currently available, and no known exploits have been reported.
In Spring AI, having access to a shared environment can expose the ONNX model used by the application.
Affected versions:
Spring AI: 1.0.0 - 1.0.5 (fixed in 1.0.6), 1.1.0 - 1.1.4 (fixed in 1.1.5)
A local attacker on the same host as the application may be able to take control of the directory used by `ApplicationTemp`. When `server.servlet.session.persistent` is set to `true` and the attack persists across application restarts, this may allow the attacker to read session information and hijack authenticated users or deploy a gadget chain and execute code as the application's user.
Affected: Spring Boot 4.0.0–4.0.5 (fix 4.0.6), 3.5.0–3.5.13 (fix 3.5.14), 3.4.0–3.4.15 (fix 3.4.16), 3.3.0–3.3.18 (fix 3.3.19), 2.7.0–2.7.32 (fix 2.7.33); predictable temp directory / `ApplicationTemp` ownership verification. Versions that are no longer supported are also affected per vendor advisory.
The mktemp utility in uutils coreutils improperly handles an empty TMPDIR environment variable by treating it as a valid path rather than falling back to /tmp. This causes temporary files to be created in the current working directory instead of a secure temporary directory. If the current directory has more permissive access controls, this behavior may lead to unintended information disclosure or unauthorized access to temporary files. The vulnerability has a low severity with a CVSS score of 3.3. No patch or official remediation is currently documented.
Requests is a HTTP library. Prior to version 2.33.0, the `requests.utils.extract_zipped_paths()` utility function uses a predictable filename when extracting files from zip archives into the system temporary directory. If the target file already exists, it is reused without validation. A local attacker with write access to the temp directory could pre-create a malicious file that would be loaded in place of the legitimate one. Standard usage of the Requests library is not affected by this vulnerability. Only applications that call `extract_zipped_paths()` directly are impacted. Starting in version 2.33.0, the library extracts files to a non-deterministic location. If developers are unable to upgrade, they can set `TMPDIR` in their environment to a directory with restricted write access.
An Insecure Temporary File vulnerability in openSUSE sdbootutil allows local users to pre-create a directory to achieve various effects like:
* gain access to possible private information found in /var/lib/pcrlock.d
* manipulate the data backed up in /tmp/pcrlock.d.bak, therefore violating the integrity of the data should it be restored.
* overwrite protected system files with data from /var/lib/pcrlock.d by placing symlinks to existing files in the directory tree in /tmp/pcrlock.d.bak.
This issue affects sdbootutil: from ? before 5880246d3a02642dc68f5c8cb474bf63cdb56bca.
Insecure Temporary File vulnerability in Altera Quartus Prime Standard
Installer (SFX)
on Windows, Altera Quartus Prime Lite
Installer (SFX)
on Windows allows Explore for Predictable Temporary File Names.This issue affects Quartus Prime Standard: from 23.1 through 24.1; Quartus Prime Lite: from 23.1 through 24.1.
Insecure Temporary File vulnerability in Altera Quartus Prime Pro
Installer (SFX)
on Windows allows : Use of Predictable File Names.This issue affects Quartus Prime Pro: from 24.1 through 25.1.1.
Umbraco is an ASP.NET CMS. Due to unsafe handling and deletion of temporary files in versions 10.0.0 through 13.12.0, during the dictionary upload process an attacker with access to the backoffice can trigger predictable requests to temporary file paths. The application’s error responses (HTTP 500 when a file exists, 404 when it does not) allow the attacker to enumerate the existence of arbitrary files on the server’s filesystem. This vulnerability does not allow reading or writing file contents. In certain configurations, incomplete clean-up of temporary upload files may additionally expose the NTLM hash of the Windows account running the Umbraco application. This issue is fixed in version 13.12.1.
An insecure temporary file creation vulnerability exists in the AutoExtract component of Robocode version 1.9.3.6. The createTempFile method fails to securely create temporary files, allowing attackers to exploit race conditions and potentially execute arbitrary code or overwrite critical files. This vulnerability can be exploited by manipulating the temporary file creation process, leading to potential unauthorized actions.
Dell Alienware Command Center 6.x (AWCC), versions prior to 6.10.15.0, contains an Insecure Temporary File vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Privilege Escalation.
Dell Alienware Command Center 6.x (AWCC), versions prior to 6.10.15.0, contains an Insecure Temporary File vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Information tampering.
The llama_index library version 0.12.33 sets the NLTK data directory to a subdirectory of the codebase by default, which is world-writable in multi-user environments. This configuration allows local users to overwrite, delete, or corrupt NLTK data files, leading to potential denial of service, data tampering, or privilege escalation. The vulnerability arises from the use of a shared cache directory instead of a user-specific one, making it susceptible to local data tampering and denial of service.