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15 vulnerabilities by Eugeny
CVE-2026-48110 (GCVE-0-2026-48110)
Vulnerability from cvelistv5 – Published: 2026-06-10 20:26 – Updated: 2026-06-10 20:26
VLAI
Title
Russh: SSH message fields were decoded through allocation-first parsers before field-specific bounds
Summary
Russh is a Rust SSH client & server library. From version 0.34.0 to before version 0.61.0, several russh client and server message handlers decoded attacker-controlled SSH strings, name-lists, and byte fields into owned allocations before applying field-specific bounds. A remote SSH peer could send oversized, high-fanout, or malformed length-prefixed fields and make the library allocate, attempt to allocate, or split data before rejecting input that should have been rejected earlier. This issue has been patched in version 0.61.0.
Severity
7.5 (High)
CWE
- CWE-20 - Improper Input Validation
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/Eugeny/russh/security/advisori… | x_refsource_CONFIRM |
{
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"version": "\u003e= 0.34.0, \u003c 0.61.0"
}
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}
],
"metrics": [
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"userInteraction": "NONE",
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},
"title": "Russh: SSH message fields were decoded through allocation-first parsers before field-specific bounds"
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CVE-2026-48108 (GCVE-0-2026-48108)
Vulnerability from cvelistv5 – Published: 2026-06-10 20:24 – Updated: 2026-06-10 20:24
VLAI
Title
Russh: SSH identification parsing accepted non-canonical client banners and did not bound pre-banner input
Summary
Russh is a Rust SSH client & server library. From version 0.34.0-beta.1 to before version 0.61.0, russh did not enforce the SSH identification-string rules as deliberately as OpenSSH. In particular, the server-side identification reader used the same permissive path as the client, allowing pre-banner lines from clients, and the reader did not enforce a bounded number of pre-banner lines. For a library server built on russh, this could allow a remote peer to hold connection setup resources in the cleartext pre-authentication phase with malformed identification input that should have been rejected early. This issue has been patched in version 0.61.0.
Severity
5.3 (Medium)
CWE
- CWE-20 - Improper Input Validation
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/Eugeny/russh/security/advisori… | x_refsource_CONFIRM |
Impacted products
{
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"vendor": "Eugeny",
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}
],
"metrics": [
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CVE-2026-48107 (GCVE-0-2026-48107)
Vulnerability from cvelistv5 – Published: 2026-06-10 20:23 – Updated: 2026-06-10 20:23
VLAI
Title
Russh: Unchecked keyboard-interactive prompt count in client auth path
Summary
Russh is a Rust SSH client & server library. From version 0.37.0 to before version 0.61.0, in the russh client keyboard-interactive authentication path, a malicious SSH server could send a USERAUTH_INFO_REQUEST with an attacker-controlled prompt count, and the client would use that raw count directly in Vec::with_capacity(...) before validating that enough prompt data was actually present in the packet. This issue has been patched in version 0.61.0.
Severity
6.5 (Medium)
CWE
- CWE-20 - Improper Input Validation
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/Eugeny/russh/security/advisori… | x_refsource_CONFIRM |
{
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}
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}
],
"metrics": [
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CVE-2026-46705 (GCVE-0-2026-46705)
Vulnerability from cvelistv5 – Published: 2026-06-10 20:21 – Updated: 2026-06-10 20:22
VLAI
Title
russh server userauth state is not reset when authentication principal changes
Summary
Russh is a Rust SSH client & server library. From version 0.34.0-beta.1 to before version 0.61.0, the russh server authentication path keeps internal userauth state across SSH_MSG_USERAUTH_REQUEST messages without separating that state when the request principal changes. RFC 4252 allows the user name and service name fields to change between authentication requests. The issue is not that such changes are invalid. The issue is that russh-owned authentication state, such as remaining methods, partial-success state, and in-progress method state, can remain associated with the connection and then influence a later request for a different (user, service). This is an internal library state mismatch. This issue has been patched in version 0.61.0.
Severity
5.3 (Medium)
CWE
- CWE-287 - Improper Authentication
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/Eugeny/russh/security/advisori… | x_refsource_CONFIRM |
Impacted products
{
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"cna": {
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{
"product": "russh",
"vendor": "Eugeny",
"versions": [
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}
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}
],
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}
],
"metrics": [
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"confidentialityImpact": "NONE",
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"privilegesRequired": "NONE",
"scope": "UNCHANGED",
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CVE-2026-46702 (GCVE-0-2026-46702)
Vulnerability from cvelistv5 – Published: 2026-06-10 20:19 – Updated: 2026-06-10 20:19
VLAI
Title
Russh: Post-decompression SSH packet size was not bounded, allowing remote oversized compressed packets
Summary
Russh is a Rust SSH client & server library. From version 0.34.0 to before version 0.61.1, when SSH compression is enabled, russh accepted compressed packets whose on-wire size passed the normal transport packet-length checks but whose decompressed size was much larger. This allowed a remote peer to send oversized post-decompression packets that should have been rejected. In current releases, this is a remote denial-of-service / resource-exhaustion issue in the post-decompression receive path. In older releases before 0.58.0, the same remote decompression path used CryptoVec, which appears to make the historical impact worse. This issue has been patched in version 0.61.1.
Severity
7.5 (High)
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/Eugeny/russh/security/advisori… | x_refsource_CONFIRM |
{
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}
],
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CVE-2026-46673 (GCVE-0-2026-46673)
Vulnerability from cvelistv5 – Published: 2026-06-10 20:16 – Updated: 2026-06-10 20:16
VLAI
Title
Russh: Unchecked CryptoVec allocation and growth handling is reachable from local agent inputs in current russh releases and from remote SSH traffic in historical pre-0.58.0 releases
Summary
Russh is a Rust SSH client & server library. Prior to version 0.60.3, CryptoVec used unchecked capacity growth, unchecked length arithmetic, and unsafe allocation/locking paths. In current russh releases, local SSH agent peers could still feed attacker-controlled frame lengths into buffer growth before validation. In older russh releases before 0.58.0, remote SSH traffic also reached CryptoVec through transport and compression buffers. This issue has been patched in version 0.60.3.
Severity
7.5 (High)
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/Eugeny/russh/security/advisori… | x_refsource_CONFIRM |
{
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"vendor": "Eugeny",
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{
"status": "affected",
"version": "\u003c 0.60.3"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Russh is a Rust SSH client \u0026 server library. Prior to version 0.60.3, CryptoVec used unchecked capacity growth, unchecked length arithmetic, and unsafe allocation/locking paths. In current russh releases, local SSH agent peers could still feed attacker-controlled frame lengths into buffer growth before validation. In older russh releases before 0.58.0, remote SSH traffic also reached CryptoVec through transport and compression buffers. This issue has been patched in version 0.60.3."
}
],
"metrics": [
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"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
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],
"source": {
"advisory": "GHSA-g9f8-wqj9-fjw5",
"discovery": "UNKNOWN"
},
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}
},
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CVE-2026-45038 (GCVE-0-2026-45038)
Vulnerability from cvelistv5 – Published: 2026-05-15 16:48 – Updated: 2026-05-20 15:42
VLAI
Title
Tabby: Dragging and Dropping a File into Tabby Can Lead to Code Execution
Summary
Tabby (formerly Terminus) is a highly configurable terminal emulator. Prior to 1.0.233, since Tabby does not escape control characters from file paths when dragging and dropping a file into it, code execution can be achieved. This vulnerability is fixed in 1.0.233.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-150 - Improper Neutralization of Escape, Meta, or Control Sequences
Assigner
References
1 reference
| URL | Tags |
|---|---|
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CVE-2026-45036 (GCVE-0-2026-45036)
Vulnerability from cvelistv5 – Published: 2026-05-15 16:47 – Updated: 2026-05-20 15:42
VLAI
Title
Tabby auto-confirms ZMODEM detection on terminal output, leading to shell command execution from displayed file content under fish, bash, and zsh
Summary
Tabby (formerly Terminus) is a highly configurable terminal emulator. Prior to 1.0.233, Tabby before 1.0.233 automatically confirms ZMODEM protocol detection on all terminal session output without user interaction, enabling shell command execution when a user displays attacker-controlled content. The ZModemMiddleware in tabby-terminal consumes all session output through a Zmodem.Sentry, and when a ZMODEM ZRQINIT header is detected, unconditionally calls detection.confirm() and writes a fixed ZRINIT response ( **\x18B0100000023be50\r\n\x11) back into the active PTY as input. When the process that triggered the detection (e.g., cat) exits, the injected bytes are consumed by the user's shell as a command line. Under fish (default configuration), the ** prefix triggers recursive glob expansion against the current directory, allowing an attacker-placed executable at a matching nested path (e.g., d/xB0100000023be50) to be executed by relative pathname without relying on PATH. Under bash and zsh, a secondary xterm.js terminal color-query feedback (OSC 10) can be combined in the same file to inject a slash-containing command word that similarly bypasses PATH resolution. An attacker can exploit this by providing a crafted file (e.g., in a cloned Git repository) that a user displays with cat, achieving code execution with no interaction beyond viewing the file. This vulnerability is fixed in 1.0.233.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
1 reference
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CVE-2026-45035 (GCVE-0-2026-45035)
Vulnerability from cvelistv5 – Published: 2026-05-15 16:41 – Updated: 2026-05-21 03:55
VLAI
Title
Tabby: RCE via `tabby://run` URL Scheme
Summary
Tabby (formerly Terminus) is a highly configurable terminal emulator. Prior to 1.0.233, Tabby registers itself as the handler for the tabby:// URL scheme on all platforms. The URL scheme handler supports a run command that directly executes OS commands with no user confirmation, sanitization, or sandboxing. An attacker can craft a malicious link (tabby://run?command=...) and deliver it via a website, email, chat message, or any other medium. When a victim clicks the link, the OS launches Tabby which immediately spawns the specified command as a child process with the user's full privileges. This is a zero-click-after-link-visit RCE vulnerability. This vulnerability is fixed in 1.0.233.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
1 reference
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CVE-2026-45037 (GCVE-0-2026-45037)
Vulnerability from cvelistv5 – Published: 2026-05-15 16:40 – Updated: 2026-05-15 17:49
VLAI
Title
Tabby: Unsafe protocol handler execution via terminal linkifier allows arbitrary OS protocol invocation
Summary
Tabby (formerly Terminus) is a highly configurable terminal emulator. Prior to 1.0.232, Tabby's terminal linkifier passes any detected URI directly to the operating system's protocol handler without validating the protocol scheme. This allows a malicious SSH or Telnet server to send crafted terminal output containing dangerous protocol URIs which Tabby renders as clickable links, triggering arbitrary OS protocol handlers on the victim's machine. This vulnerability is fixed in 1.0.232.
Severity
7.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
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CVE-2026-42189 (GCVE-0-2026-42189)
Vulnerability from cvelistv5 – Published: 2026-05-08 19:49 – Updated: 2026-05-11 14:23
VLAI
Title
Russh: Pre-auth DoS via unbounded allocation in keyboard-interactive auth
Summary
Russh is a Rust SSH client & server library. Prior to version 0.60.1, a pre-authentication denial-of-service vulnerability exists in the server's keyboard-interactive authentication handler. A malicious client can crash any russh-based server that implements keyboard-interactive auth (e.g., for 2FA/TOTP) with a single malformed packet, requiring no credentials. This issue has been patched in version 0.60.1.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
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| https://github.com/Eugeny/russh/commit/6c3c80a9b6… | x_refsource_MISC |
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CVE-2025-54804 (GCVE-0-2025-54804)
Vulnerability from cvelistv5 – Published: 2025-08-05 00:05 – Updated: 2025-08-05 14:44
VLAI
Title
Russh is missing an overflow check during channel windows adjust
Summary
Russh is a Rust SSH client & server library. In versions 0.54.0 and below, the channel window adjust message of the SSH protocol is used to track the free space in the receive buffer of the other side of a channel. The current implementation takes the value from the message and adds it to an internal state value. This can result in a integer overflow. If the Rust code is compiled with overflow checks, it will panic. A malicious client can crash a server. This is fixed in version 0.54.1.
Severity
6.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/Eugeny/russh/security/advisori… | x_refsource_CONFIRM |
| https://github.com/Eugeny/russh/commit/0eb5e40678… | x_refsource_MISC |
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CVE-2025-22136 (GCVE-0-2025-22136)
Vulnerability from cvelistv5 – Published: 2025-01-08 16:02 – Updated: 2025-01-08 19:25
VLAI
Title
Tabby has a TCC Bypass via Misconfigured Node Fuses
Summary
Tabby (formerly Terminus) is a highly configurable terminal emulator. Prior to 1.0.217 , Tabby enables several high-risk Electron Fuses, including RunAsNode, EnableNodeCliInspectArguments, and EnableNodeOptionsEnvironmentVariable. These fuses create potential code injection vectors even though the application is signed with hardened runtime and lacks dangerous entitlements such as com.apple.security.cs.disable-library-validation and com.apple.security.cs.allow-dyld-environment-variables. This vulnerability is fixed in 1.0.217.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/Eugeny/tabby/security/advisori… | x_refsource_CONFIRM |
| https://github.com/Eugeny/tabby/commit/93513541f7… | x_refsource_MISC |
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CVE-2024-55950 (GCVE-0-2024-55950)
Vulnerability from cvelistv5 – Published: 2024-12-26 21:52 – Updated: 2024-12-27 16:17
VLAI
Title
Tabby has a TCC Bypass via Unnecessary Permissive Entitlements in Tabby
Summary
Tabby (formerly Terminus) is a highly configurable terminal emulator. Prior to 1.0.216, Tabby terminal emulator contains overly permissive entitlements that are unnecessary for its core functionality and plugin system, creating potential security vulnerabilities. The application currently holds powerful permissions including camera, microphone access, and the ability to access personal folders (Downloads, Documents, etc.) through Apple Events, while also maintaining dangerous entitlements that enable code injection. The concerning entitlements are com.apple.security.cs.allow-dyld-environment-variables and com.apple.security.cs.disable-library-validation. Since Tabby's plugins and themes are NodeJS-based without native libraries or frameworks, and no environment variables are used in the codebase, it is recommended to review and remove at least one of the entitlements (com.apple.security.cs.disable-library-validation or com.apple.security.cs.allow-dyld-environment-variables) to prevent DYLD_INSERT_LIBRARIES injection while maintaining full application functionality. This vulnerability is fixed in 1.0.216.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-276 - Incorrect Default Permissions
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/Eugeny/tabby/security/advisori… | x_refsource_CONFIRM |
| https://github.com/Eugeny/tabby/commit/e1e6e1cdab… | x_refsource_MISC |
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CVE-2024-43410 (GCVE-0-2024-43410)
Vulnerability from cvelistv5 – Published: 2024-08-21 15:09 – Updated: 2024-08-21 15:35
VLAI
Title
Russh has an OOM Denial of Service due to allocation of untrusted amount
Summary
Russh is a Rust SSH client & server library. Allocating an untrusted amount of memory allows any unauthenticated user to OOM a russh server. An SSH packet consists of a 4-byte big-endian length, followed by a byte stream of this length.
After parsing and potentially decrypting the 4-byte length, russh allocates enough memory for this bytestream, as a performance optimization to avoid reallocations later. But this length is entirely untrusted and can be set to any value by the client, causing this much memory to be allocated, which will cause the process to OOM within a few such requests. This vulnerability is fixed in 0.44.1.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/Eugeny/russh/security/advisori… | x_refsource_CONFIRM |
| https://github.com/Eugeny/russh/commit/f660ea3f64… | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Eugeny | russh |
Affected:
< 0.44.1
|
|
| russh_project | russh |
Affected:
0 , < 0.44.1
(custom)
cpe:2.3:a:russh_project:russh:*:*:*:*:*:rust:*:* |
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}