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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-25645 Detail

Description

Requests is a HTTP library. Prior to version 2.33.0, the function `requests.utils.extract_zipped_paths()` (which is used by `HTTPAdapter.cert_verify()` to load the CA bundle, often from the `certifi` package's zipapp structure) uses a predictable, non-unique filename (the basename of the file, e.g., `cacert.pem`) when attempting to extract files into the system's temporary directory (`/tmp`). The vulnerable logic performs a check to see if the target file already exists in `/tmp` and re-uses the existing file if found, instead of securely checking the file's content or ensuring atomic, unique extraction. This allows a Local Attacker to pre-create a malicious CA bundle file (e.g., `/tmp/cacert.pem`) before a vulnerable application (running with potentially higher privileges) initializes the `requests` library. Version 2.33.0 contains a patch.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/psf/requests/commit/66d21cb07bd6255b1280291c4fafb71803cdb3b7 GitHub, Inc.
https://github.com/psf/requests/releases/tag/v2.33.0 GitHub, Inc.
https://github.com/psf/requests/security/advisories/GHSA-gc5v-m9x4-r6x2 GitHub, Inc.

Weakness Enumeration

CWE-ID CWE Name Source
CWE-377 Insecure Temporary File GitHub, Inc.  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-25645
NVD Published Date:
03/25/2026
NVD Last Modified:
03/25/2026
Source:
GitHub, Inc.