An issue discovered in Python Charmers Future 0.18.2 and earlier allows remote attackers…
Priority HIGH 72CWE-400Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 3 fixed, 7 without a fix
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-400.
Summary
An issue discovered in Python Charmers Future 0.18.2 and earlier allows remote attackers to cause a denial of service via crafted Set-Cookie header from malicious web server.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01925 80th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Partial future (PyPI): 0.18.3Red Hat: 3 advisoriesRed Hat: 3 fixed, 7 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | future (PyPI) | before 0.18.3 | 0.18.3 | Patch available | GHSA-v3c5-jqr6-7qm8 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- future (PyPI) Vendor— Affected before 0.18.3 Fixed in 0.18.3 Patch available GHSA-v3c5-jqr6-7qm8
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:pythoncharmers:python-future:*:*:*:*:*:python:*:* | up to 0.18.2 | Vulnerable | Pythoncharmers |
- cpe:2.3:a:pythoncharmers:python-future:*:*:*:*:*:python:*:* Versions up to 0.18.2 Vulnerable ·Pythoncharmers
Remediation
- Fix · GHSA-v3c5-jqr6-7qm8 future (PyPI) Fixed in 0.18.3 Advisory →
Red Hat 3 advisories
- RHSA-2023:6818 Released 2023-11-08 · Red Hat rating ImportantSatellite 6.14 security and bug fix update
- Red Hat Satellite 6.14 for RHEL 8 foreman-3.7.0.9-1.el8sat, foreman-cli-3.7.0.9-1.el8sat, foreman-debug-3.7.0.9-1.el8sat +33
- RHSA-2023:4466 Released 2023-08-03 · Red Hat rating ImportantSatellite 6.13.3 Async Security Update
- Red Hat Satellite 6.13 for RHEL 8 python-future-0.18.3-1.el8pc, python39-future-0.18.3-1.el8pc, rubygem-safemode-1.3.8-1.el8sat
- RHSA-2023:2101 Released 2023-05-03 · Red Hat rating ModerateRHUI 4.4.0 release - Security Fixes, Bug Fixes, and Enhancements Update
- RHUI 4 for RHEL 8 python-django-3.2.18-1.0.1.el8ui, python-future-0.18.3-1.0.1.el8ui, python39-django-3.2.18-1.0.1.el8ui +1
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| CloudForms Management Engine 5 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Will not fix |
| Red Hat OpenShift Container Platform 3.11 | Affected | No fix planned: Out of support scope |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet |
| Red Hat OpenStack Platform 13 (Queens) | Affected | No fix planned: Out of support scope |
| Red Hat OpenStack Platform 16.1 | Affected | No fix planned: Will not fix |
| Red Hat Satellite 6 | Affected | No fix yet |
| RHUI 4 for RHEL 8 | Fixed | RHSA-2023:2101 |
| Red Hat Satellite 6.13 for RHEL 8 | Fixed | RHSA-2023:4466 |
| Red Hat Satellite 6.14 for RHEL 8 | Fixed | RHSA-2023:6818 |
Not affected: 6 products
- RHUI 4 for RHEL 8
- Red Hat Ansible Automation Platform 2
- Red Hat OpenStack Platform 16.2
- Red Hat OpenStack Platform 17.0
- Red Hat Satellite 6.13 for RHEL 8
- Red Hat Satellite 6.14 for RHEL 8
Timeline
- 2026-10-02 Threatist record created from CVE-2022-40899
- 2026-10-03 Alias added: GHSA-v3c5-jqr6-7qm8
References
Exploit 2
Advisory 3
Other 5
- https://github.com/PythonCharmers/python-future/commit/c91d70b34ef0402aef3e9d04364ba98509dca76f
- https://github.com/PythonCharmers/python-future
- https://github.com/pypa/advisory-database/tree/main/vulns/future/PYSEC-2022-42991.yaml
- https://pypi.org/project/future
- https://pyup.io/posts/pyup-discovers-redos-vulnerabilities-in-top-python-packages
Sources
- CVE-2022-40899 · CVE Program
- CVE-2022-40899 · NVD
- FIRST EPSS
- GHSA-v3c5-jqr6-7qm8 · GitHub Advisory Database · CC BY 4.0
- CVE-2022-40899 · Red Hat security data · CC BY 4.0
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