CVE-2026-45037Network attack vector

Arbitrary protocol invocation via unchecked terminal links

Published May 15, 2026 · Updated May 15, 2026

Unsafe URI handling in Eugeny Tabby 1.0.231 and earlier allows remote attackers to invoke OS protocol handlers through crafted terminal links. URLHandler.handle() in tabby-linkifier passes detected URIs to openExternal() without first restricting their schemes to safe protocols. Exploitation requires a user to connect to an attacker-controlled SSH or Telnet server and click the rendered link; impact depends on the installed handler, with code execution documented for vulnerable Windows handlers.

CVSS severity7.1
High
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unsafe URI handling in Eugeny Tabby 1.0.231 and earlier allows remote attackers to invoke OS protocol handlers through crafted terminal links. URLHandler.handle() in tabby-linkifier passes detected URIs to openExternal() without first restricting their schemes to safe protocols. Exploitation requires a user to connect to an attacker-controlled SSH or Telnet server and click the rendered link; impact depends on the installed handler, with code execution documented for vulnerable Windows handlers.

The record

CVE
CVE-2026-45037
Published
May 15, 2026
Updated
May 15, 2026
Vendor
Russh Project
Product
Tabby
Classifications
CWE-184, CWE-601, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 15, 2026CVE publishedPublication date reported by the CVE source.
  2. May 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=< 1.0.232

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Russh Project · Tabbyversion=< 1.0.232

Published CVSS scores

7.1GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-184Incomplete List of Disallowed Inputs
CWE-601URL Redirection to Untrusted Site ('Open Redirect')
T1204.001User Execution: Malicious Link

Public exploit references

No public exploit references are available in this record.

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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