rdiffweb vulnerable to Sensitive Cookie in HTTPS Session Without 'Secure' Attribute

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS 4.0

7.1 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N · score source

EPSS

• CVE-2022-3174: 0.71% estimated exploitation activity in the next 30 days; percentile 53.43 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

rdiffweb version 2.4.1 is vulnerable to Sensitive Cookie in HTTPS Session Without 'Secure' Attribute. This makes it so that a user's cookies can be sent to the server with an unencrypted request over the HTTP protocol. Version 2.4.2 contains a fix for the issue.

Published by the source

14 Sep 2022, 00:00 UTC

Last modified by the source

25 Oct 2024, 21:32 UTC

Source last checked

26 Oct 2026, 13:23 UTC

1. Revision 3 · amended · 26 Oct 2026

   Amended from ghsa record GHSA-mjw4-xvx6-3grg

2. Revision 2 · amended · 25 Oct 2026

   Reviewed OSV alias/range/CVSS4 correction; package source scopes and original publication preserved. No customer finding resolved.

3. Revision 1 · created · 24 Oct 2026

   Published from osv record GHSA-mjw4-xvx6-3grg

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# Patch Next advisory brief: CVE-2022-3174

Advisory: rdiffweb vulnerable to Sensitive Cookie in HTTPS Session Without 'Secure' Attribute
IDs: CVE-2022-3174, GHSA-mjw4-xvx6-3grg
Record: https://patchnext.com/advisories/cve-2022-3174 (revision 3, source checked 26 Oct 2026, 13:23 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 7.1)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: rdiffweb 2.4.2. A vendor fix does not mean a deployment is fixed.

## Affected components
- PyPI rdiffweb: affected >= 2.4.1, <= 2.4.1; fixed in 2.4.2

## Suggested inspection (read-only)
- `python -m pip show rdiffweb`: prints the installed version. Run with the environment that serves production active.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on rdiffweb.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-mjw4-xvx6-3grg (OSV record GHSA-mjw4-xvx6-3grg lists affected ranges: PyPI rdiffweb >=2.4.1 <2.4.2 (fixed))
- Verified: https://github.com/advisories/GHSA-mjw4-xvx6-3grg (GitHub-reviewed advisory GHSA-mjw4-xvx6-3grg lists affected ranges: PyPI rdiffweb >=2.4.1 <=2.4.1)

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