PYSEC-2026-836
Denial of service vulnerability on Password reset page
Quick fix
PYSEC-2026-836 — kiwitcms: upgrade to the fixed version with the command below.
pip install --upgrade 'kiwitcms>=12.0'Details
### Impact Previous versions of Kiwi TCMS do not impose rate limits which makes it easier to attempt denial-of-service attacks against the Password reset page. An attacker could potentially send a large number of emails if they know the email addresses of users in Kiwi TCMS. Additionally that may strain SMTP resources.
### Patches Users should upgrade to v12.0 or later.
### Workarounds Users may install and configure a rate-limiting proxy in front of Kiwi TCMS such as Nginx and/or configure rate limits on their email server when possible.
### References [Disclosed by Ahmed Rabeaa Mosaa](https://huntr.dev/bounties/3b712cb6-3fa3-4f71-8562-7a7016c6262e)
Are you affected?
Enter the version of the package you're using.
Affected packages
References
- https://github.com/kiwitcms/Kiwi/security/advisories/GHSA-7j9h-3jxf-3vrf[WEB]
- https://nvd.nist.gov/vuln/detail/CVE-2023-25171[ADVISORY]
- https://github.com/kiwitcms/Kiwi/commit/761305d04f5910ba14cc04d1255a8f1afdbb87f3[WEB]
- https://github.com/kiwitcms/Kiwi[PACKAGE]
- https://huntr.dev/bounties/3b712cb6-3fa3-4f71-8562-7a7016c6262e[WEB]
- https://kiwitcms.org/blog/kiwi-tcms-team/2023/02/15/kiwi-tcms-120[WEB]
- https://pypi.org/project/kiwitcms[PACKAGE]
- https://github.com/advisories/GHSA-7j9h-3jxf-3vrf[ADVISORY]