CVE-2024-35195 Requests `Session` object does not verify requests after making first request with verify=False
Medium 5.6
Published
Updated
Check this codebase for CVE-2024-35195 and fix it if it is affected.
What it is: CVE-2024-35195 is a medium-severity vulnerability in psf requests, published on 20 May 2024. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2024-35195 in the wild and no public exploit code.
Affected packages and fixed versions:
- requests (PyPI): affected all versions; fixed in 2.32.0
- requests (PyPI): affected all versions; fixed in 2.32.0
- requests (PyPI): affected all versions; fixed in 2.32.0
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2024-35195/ (Markdown: https://insights.sbomify.com/CVE-2024-35195/index.md)
Attackers can bypass TLS certificate verification in Python Requests sessions if the first request disables verification, allowing man-in-the-middle attacks.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2024-35195?
CVE-2024-35195 is a medium-severity vulnerability in psf requests, published on 20 May 2024. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-670
Which versions are affected by CVE-2024-35195?
3 open source packages ship an affected version, including requests.
| Package | Affected | Fixed in |
|---|---|---|
requests PyPI | All versions | 2.32.0 |
requests PyPI | All versions | 2.32.0 |
requests PyPI | All versions | 2.32.0 |
Linux distribution packages (37)
python3-requests AlmaLinux:8 | All versions | 2.20.0-5.el8_10 |
python3-requests AlmaLinux:9 | All versions | 2.25.1-9.el9 |
python3-requests+security AlmaLinux:9 | All versions | 2.25.1-9.el9 |
python3-requests+socks AlmaLinux:9 | All versions | 2.25.1-9.el9 |
python-requests Red Hat:enterprise_linux:8::baseos | All versions | 0:2.20.0-5.el8_10 |
python3-requests Red Hat:enterprise_linux:8::baseos | All versions | 0:2.20.0-5.el8_10 |
python3-requests+security Red Hat:enterprise_linux:9::appstream | All versions | 0:2.25.1-9.el9 |
python3-requests+socks Red Hat:enterprise_linux:9::appstream | All versions | 0:2.25.1-9.el9 |
python-requests Red Hat:enterprise_linux:9::baseos | All versions | 0:2.25.1-9.el9 |
python3-requests Red Hat:enterprise_linux:9::baseos | All versions | 0:2.25.1-9.el9 |
python-requests Red Hat:openstack:17.1::el8 | All versions | 0:2.25.1-2.el8ost |
python3-requests Red Hat:openstack:17.1::el8 | All versions | 0:2.25.1-2.el8ost |
python-requests Rocky Linux:8 | All versions | 0:2.20.0-5.el8_10 |
python-requests Rocky Linux:9 | All versions | 0:2.25.1-9.el9 |
python-requests SUSE:Enterprise Storage 7.1 | All versions | 2.25.1-150300.3.9.1 |
python-requests SUSE:Linux Enterprise High Availability Extension 12 SP5 | All versions | 2.24.0-8.17.1 |
python-requests SUSE:Linux Enterprise High Availability Extension 12 SP5 | All versions | 2.24.0-8.20.1 |
python-requests SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | All versions | 2.25.1-150300.3.9.1 |
python-requests SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | All versions | 2.25.1-150300.3.9.1 |
python-requests SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | All versions | 2.31.0-150400.6.15.1 |
python-requests SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS | All versions | 2.25.1-150300.3.9.1 |
python-requests SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS | All versions | 2.31.0-150400.6.15.1 |
python-requests SUSE:Linux Enterprise Micro 5.1 | All versions | 2.25.1-150300.3.9.1 |
python-requests SUSE:Linux Enterprise Micro 5.2 | All versions | 2.25.1-150300.3.9.1 |
python-requests SUSE:Linux Enterprise Micro 5.3 | All versions | 2.25.1-150300.3.9.1 |
python-requests SUSE:Linux Enterprise Micro 5.4 | All versions | 2.25.1-150300.3.9.1 |
python-requests SUSE:Linux Enterprise Micro 5.5 | All versions | 2.25.1-150300.3.9.1 |
python-requests SUSE:Linux Enterprise Module for Advanced Systems Management 12 | All versions | 2.11.1-6.37.1 |
python-requests SUSE:Linux Enterprise Module for Advanced Systems Management 12 | All versions | 2.11.1-6.40.1 |
python-requests SUSE:Linux Enterprise Module for Basesystem 15 SP5 | All versions | 2.25.1-150300.3.9.1 |
python-requests SUSE:Linux Enterprise Module for Basesystem 15 SP6 | All versions | 2.25.1-150300.3.9.1 |
python-docker SUSE:Linux Enterprise Module for Package Hub 15 SP5 | All versions | 4.2.0-150200.3.5.1 |
python-docker SUSE:Linux Enterprise Module for Package Hub 15 SP6 | All versions | 4.2.0-150200.3.5.1 |
python-requests SUSE:Linux Enterprise Module for Public Cloud 12 | All versions | 2.24.0-8.17.1 |
python-requests SUSE:Linux Enterprise Module for Public Cloud 12 | All versions | 2.24.0-8.20.1 |
python-docker SUSE:Linux Enterprise Module for Public Cloud 15 SP4 | All versions | 7.0.0-150400.8.7.1 |
python-requests SUSE:Linux Enterprise Module for Public Cloud 15 SP4 | All versions | 2.31.0-150400.6.12.1 |
How do I fix CVE-2024-35195?
Upgrade requests to 2.32.0 or later.
Is CVE-2024-35195 being exploited?
There is no known exploitation of CVE-2024-35195 in the wild and no public exploit code.
Sources
Also known as ALPINE-CVE-2024-35195, ALSA-2025:0012, ALSA-2025:7049, AZL-42106, AZL-42127, AZL-42145 and 37 more.