Vulnerability · Published Jan 27, 2026 · Assigned by GitHub_M
CVE-2026-24489Gakido vulnerable to HTTP Header Injection (CRLF Injection)
Medium 5.3
In plain English
A medium-severity security flaw in gakido from HappyHackingSpace. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 34% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | gakido | 0.1.1 | GHSA-gcgx-chcp-hxp9 |
| PyPI | gakido | 0.1.1 | PYSEC-2026-1400 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| HappyHackingSpace | gakido | < 0.1.1 |
Weakness: CWE-93, CWE-113 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N