CVE-2026-91986Public exploitNetwork attack vectorHinoki check available

Virtual-host spoofing via unfiltered git URL path

Published Sep 15, 2026 · Updated Sep 15, 2026

Injection in GitoxideLabs gitoxide gix-transport before 0.59.2 allows context-dependent attackers to spoof git-daemon virtual hosts. The message::connect serializer writes a percent-decoded git URL path into a NUL-delimited request without rejecting NUL, CR, or LF bytes. Exploitation requires a crafted git URL to reach the client through a malicious submodule, path composition, or interception, enabling repository misrouting or request and log newline injection.

CVSS severity5.4
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Injection in GitoxideLabs gitoxide gix-transport before 0.59.2 allows context-dependent attackers to spoof git-daemon virtual hosts. The message::connect serializer writes a percent-decoded git URL path into a NUL-delimited request without rejecting NUL, CR, or LF bytes. Exploitation requires a crafted git URL to reach the client through a malicious submodule, path composition, or interception, enabling repository misrouting or request and log newline injection.

The record

CVE
CVE-2026-91986
Published
Sep 15, 2026
Updated
Sep 15, 2026
Vendor
GitoxideLabs
Product
gitoxide
Classifications
CWE-93, CWE-74
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <0.59.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

GitoxideLabs · gitoxideversion=0 <0.59.2

Published CVSS scores

5.4GitoxideLabsCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-93Improper Neutralization of CRLF Sequences ('CRLF Injection')
CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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