CVE-2024-35195: Requests `Session` object does not verify requests after making first request with verify=False

Severity: medium (CVSS 5.6 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-05-20 · updated 2026-06-17
Weakness: CWE-670

Description

Requests is a HTTP library. Prior to 2.32.0, when making requests through a Requests `Session`, if the first request is made with `verify=False` to disable cert verification, all subsequent requests to the same host will continue to ignore cert verification regardless of changes to the value of `verify`. This behavior will continue for the lifecycle of the connection in the connection pool. This vulnerability is fixed in 2.32.0.

Affected products

HackerOne request node module: before 2.32.0 — fixed in 2.32.0
Pypi Requests: before 2.32.0; 0.0.1, 0.10.0, 0.10.1, 0.10.2, 0.10.3, 0.10.4 (+145) — fixed in 2.32.0

How to fix

Upgrade to a fixed version: HackerOne request node module 2.32.0; Pypi Requests 2.32.0. Check the vendor advisory for mitigations.

References

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