Common Weakness Enumeration

CWE-377

Allowed-with-Review

Insecure Temporary File

Abstraction: Class · Status: Incomplete

Creating and using insecure temporary files can leave application and system data vulnerable to attack.

185 vulnerabilities reference this CWE, most recent first.

CVE-2026-45384 (GCVE-0-2026-45384)

Vulnerability from cvelistv5 – Published: 2026-06-10 20:00 – Updated: 2026-06-11 13:38
VLAI
Title
bit7z: Arbitrary File Overwrite via Symlink Attack on Predictable Temp File During Archive Update
Summary
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.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-11 13:38 UTC
CWE
  • CWE-59 - Improper Link Resolution Before File Access ('Link Following')
  • CWE-377 - Insecure Temporary File
References
Impacted products
Vendor Product Version
rikyoz bit7z Affected: < 4.0.12
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CVE-2026-41991 (GCVE-0-2026-41991)

Vulnerability from cvelistv5 – Published: 2026-06-29 10:15 – Updated: 2026-06-29 13:31 X_Open Source
VLAI
Title
Predictable Temporary File in GNU gzip
Summary
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
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-29 13:31 UTC
CWE
  • CWE-377 - Insecure Temporary File
Impacted products
Vendor Product Version
GNU gzip Affected: 0 , ≤ 1.14 (semver)
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CVE-2026-41001 (GCVE-0-2026-41001)

Vulnerability from cvelistv5 – Published: 2026-06-11 05:04 – Updated: 2026-06-23 19:54
VLAI
Title
Predictable Temp Directory in Artemis Auto-configuration
Summary
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.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-11 15:13 UTC
CWE
  • CWE-377 - Insecure Temporary File
References
Impacted products
Vendor Product Version
Spring Spring Boot Affected: 4.0.0 , < 4.0.6.1 (custom)
Affected: 3.5.0 , < 3.5.14.1 (custom)
Affected: 3.4.0 , < 3.4.17 (custom)
Affected: 3.3.0 , < 3.3.20 (custom)
Affected: 2.7.0 , < 2.7.34 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-40979 (GCVE-0-2026-40979)

Vulnerability from cvelistv5 – Published: 2026-04-28 07:31 – Updated: 2026-04-28 12:33
VLAI
Summary
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)
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-28 12:32 UTC
CWE
  • CWE-377 - Insecure Temporary File
References
Impacted products
Vendor Product Version
Spring Spring AI Affected: 1.0.0 , < 1.0.6 (custom)
Affected: 1.1.0 , < 1.1.5 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-40973 (GCVE-0-2026-40973)

Vulnerability from cvelistv5 – Published: 2026-04-27 23:29 – Updated: 2026-04-29 03:55
VLAI
Summary
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.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-28 00:00 UTC
CWE
  • CWE-377 - Insecure Temporary File
References
Impacted products
Vendor Product Version
Spring Spring Boot Affected: 4.0.0 , < 4.0.6 (custom)
Affected: 3.5.0 , < 3.5.14 (custom)
Affected: 3.4.0 , < 3.4.16 (custom)
Affected: 3.3.0 , < 3.3.19 (custom)
Affected: 2.7.0 , < 2.7.33 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-35342 (GCVE-0-2026-35342)

Vulnerability from cvelistv5 – Published: 2026-04-22 16:07 – Updated: 2026-04-22 18:15
VLAI
Title
uutils coreutils mktemp Insecure Temporary File Placement via Empty TMPDIR
Summary
The mktemp utility in uutils coreutils fails to properly handle an empty TMPDIR environment variable. Unlike GNU mktemp, which falls back to /tmp when TMPDIR is an empty string, the uutils implementation treats the empty string as a valid path. This causes temporary files to be created in the current working directory (CWD) instead of the intended secure temporary directory. If the CWD is more permissive or accessible to other users than /tmp, it may lead to unintended information disclosure or unauthorized access to temporary data.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-22 18:15 UTC
CWE
  • CWE-377 - Insecure Temporary File
References
Impacted products
Vendor Product Version
Uutils coreutils Affected: 0 , < 0.6.0 (semver)
Create a notification for this product.
Credits
Show details on NVD website

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CVE-2026-25701 (GCVE-0-2026-25701)

Vulnerability from cvelistv5 – Published: 2026-02-25 10:59 – Updated: 2026-02-25 20:50
VLAI
Summary
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.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-25 20:49 UTC
CWE
  • CWE-377 - Insecure Temporary File
References
Impacted products
Vendor Product Version
openSUSE sdbootutil Affected: ? , < 5880246d3a02642dc68f5c8cb474bf63cdb56bca (git)
Create a notification for this product.
Date Public
2026-02-18 08:18
Show details on NVD website

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CVE-2026-25645 (GCVE-0-2026-25645)

Vulnerability from cvelistv5 – Published: 2026-03-25 17:02 – Updated: 2026-03-25 22:48
VLAI
Title
Requests has Insecure Temp File Reuse in its extract_zipped_paths() utility function
Summary
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.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-25 20:09 UTC
CWE
  • CWE-377 - Insecure Temporary File
Impacted products
Vendor Product Version
psf requests Affected: < 2.33.0
Create a notification for this product.
Show details on NVD website

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CVE-2026-20204 (GCVE-0-2026-20204)

Vulnerability from cvelistv5 – Published: 2026-04-15 15:17 – Updated: 2026-04-16 03:55
VLAI
Title
Improper Handling and Insufficient Isolation of Specific Temporary Files in Splunk Enterprise
Summary
In Splunk Enterprise versions below 10.2.1, 10.0.5, 9.4.10, and 9.3.11, and Splunk Cloud Platform versions below 10.4.2603.0, 10.3.2512.5, 10.2.2510.9, 10.1.2507.19, 10.0.2503.13, and 9.3.2411.127, a low-privileged user that does not hold the `admin` or `power` Splunk roles could potentially perform a Remote Code Execution (RCE) by uploading a malicious file to the `$SPLUNK_HOME/var/run/splunk/apptemp` directory due to improper handling and insufficient isolation of temporary files within the `apptemp` directory.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-15 00:00 UTC
CWE
  • CWE-377 - Creating and using insecure temporary files can leave application and system data vulnerable to attack.
Impacted products
Vendor Product Version
Splunk Splunk Enterprise Affected: 10.2 , < 10.2.1 (custom)
Affected: 10.0 , < 10.0.5 (custom)
Affected: 9.4 , < 9.4.10 (custom)
Affected: 9.3 , < 9.3.11 (custom)
Create a notification for this product.
Splunk Splunk Cloud Platform Affected: 10.4.2603 , < Not Affected (custom)
Affected: 10.3.2512 , < 10.3.2512.5 (custom)
Affected: 10.2.2510 , < 10.2.2510.9 (custom)
Affected: 10.1.2507 , < 10.1.2507.19 (custom)
Affected: 10.0.2503 , < 10.0.2503.13 (custom)
Affected: 9.3.2411 , < 9.3.2411.127 (custom)
Create a notification for this product.
Date Public
2026-04-15 00:00
Show details on NVD website

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CVE-2026-16791 (GCVE-0-2026-16791)

Vulnerability from cvelistv5 – Published: 2026-08-04 19:47 – Updated: 2026-08-05 15:08
VLAI
Title
Predictable Temporary File Symlink Vulnerability in Lenovo XClarity Essentials OneCLI
Summary
A temporary file creation vulnerability in the Linux version of Lenovo XClarity Essentials OneCLI 5.5.0 and below could allow a local low-privileged attacker to overwrite or truncate arbitrary local files with program-generated data when OneCLI is executed with elevated privileges.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-05 15:06 UTC
CWE
  • CWE-377 - Insecure Temporary File
References
URL Tags
https://support.lenovo.com/us/en/solutions/ht116433 patchrelease-notesproduct
Impacted products
Vendor Product Version
Lenovo XClarity Essentials OneCLI Affected: 0 , < 5.6 (custom)
    cpe:2.3:a:lenovo:xclarity_essentials_onecli:*:*:linux:*:*:*:*:*
Create a notification for this product.
Date Public
2026-08-04 13:00
Show details on NVD website

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No mitigation information available for this CWE.

CAPEC-149: Explore for Predictable Temporary File Names

An attacker explores a target to identify the names and locations of predictable temporary files for the purpose of launching further attacks against the target. This involves analyzing naming conventions and storage locations of the temporary files created by a target application. If an attacker can predict the names of temporary files they can use this information to mount other attacks, such as information gathering and symlink attacks.

CAPEC-155: Screen Temporary Files for Sensitive Information

An adversary exploits the temporary, insecure storage of information by monitoring the content of files used to store temp data during an application's routine execution flow. Many applications use temporary files to accelerate processing or to provide records of state across multiple executions of the application. Sometimes, however, these temporary files may end up storing sensitive information. By screening an application's temporary files, an adversary might be able to discover such sensitive information. For example, web browsers often cache content to accelerate subsequent lookups. If the content contains sensitive information then the adversary could recover this from the web cache.