CVE-2026-91986
gix-transport: gix-transport: Information disclosure and virtual host spoofing via control character injection
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 16, 2026
Updated · September 16, 2026
Description
A flaw was found in gix-transport. This vulnerability allows a remote attacker to inject control characters, specifically NUL, Carriage Return (CR), and Line Feed (LF) bytes, into git-daemon connect requests by crafting malicious git URLs. This injection can lead to spoofing of virtual hosts or the insertion of newlines into daemon requests and logs, potentially causing information disclosure or unexpected behavior.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.4CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
CWE-93 · Improper Neutralization of CRLF Sequences ('CRLF Injection')