What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-01-27 · updated 2026-06-17
• Weakness: CWE-93

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.

Affected products

• HappyHackingSpace gakido: before 0.1.1

References

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

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