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4 vulnerabilities by wg-easy
CVE-2026-72603 (GCVE-0-2026-72603)
Vulnerability from nvd – Published: 2026-08-11 11:15 – Updated: 2026-08-11 12:12
VLAI
EPSS
VEX
Title
wg-easy wg-easy - OS Command Injection
Summary
An OS command injection vulnerability in wg-easy 15.3.0 allows users with the clients.create permission to execute arbitrary commands as root by injecting newline-delimited WireGuard PostUp directives into the client name field. The client name is written to the WireGuard configuration file without neutralizing newline characters, allowing injection of arbitrary directives that are executed by wg-quick with root privileges. An attacker with clients.create permission achieves root code execution on the host.
Severity
9.9 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-11 12:12 UTC
CWE
- CWE-78 - OS Command Injection
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/wg-easy/wg-easy |
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CVE-2026-63089 (GCVE-0-2026-63089)
Vulnerability from nvd – Published: 2026-07-16 19:28 – Updated: 2026-07-18 03:08 X_Open Source
VLAI
EPSS
VEX
Title
WireGuard Easy Weak Token Generation Information Disclosure via OTL Route
Summary
WireGuard Easy through 15.3.0, fixed in commit 66b292b, contains a cryptographically weak one-time link token generation vulnerability that allows unauthenticated network attackers to recover WireGuard peer credentials by brute-forcing a keyspace of at most 1000 candidate tokens per client ID, as the token is computed using CRC32 over a random value constrained to 0-999. Attackers can enumerate candidate tokens against the unauthenticated /cnf/:oneTimeLink route, which lacks rate limiting and does not validate token expiration, to obtain a peer's PrivateKey and PresharedKey and impersonate that peer on the VPN network.
Severity
9.3 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-18 03:08 UTC
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/wg-easy/wg-easy/pull/2661 | issue-tracking |
| https://github.com/wg-easy/wg-easy/commit/66b292b… | patch |
| https://www.vulncheck.com/advisories/wireguard-ea… | third-party-advisory |
Impacted products
Date Public
2026-07-12 00:00
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CVE-2026-72603 (GCVE-0-2026-72603)
Vulnerability from cvelistv5 – Published: 2026-08-11 11:15 – Updated: 2026-08-11 12:12
VLAI
EPSS
VEX
Title
wg-easy wg-easy - OS Command Injection
Summary
An OS command injection vulnerability in wg-easy 15.3.0 allows users with the clients.create permission to execute arbitrary commands as root by injecting newline-delimited WireGuard PostUp directives into the client name field. The client name is written to the WireGuard configuration file without neutralizing newline characters, allowing injection of arbitrary directives that are executed by wg-quick with root privileges. An attacker with clients.create permission achieves root code execution on the host.
Severity
9.9 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-11 12:12 UTC
CWE
- CWE-78 - OS Command Injection
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/wg-easy/wg-easy |
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CVE-2026-63089 (GCVE-0-2026-63089)
Vulnerability from cvelistv5 – Published: 2026-07-16 19:28 – Updated: 2026-07-18 03:08 X_Open Source
VLAI
EPSS
VEX
Title
WireGuard Easy Weak Token Generation Information Disclosure via OTL Route
Summary
WireGuard Easy through 15.3.0, fixed in commit 66b292b, contains a cryptographically weak one-time link token generation vulnerability that allows unauthenticated network attackers to recover WireGuard peer credentials by brute-forcing a keyspace of at most 1000 candidate tokens per client ID, as the token is computed using CRC32 over a random value constrained to 0-999. Attackers can enumerate candidate tokens against the unauthenticated /cnf/:oneTimeLink route, which lacks rate limiting and does not validate token expiration, to obtain a peer's PrivateKey and PresharedKey and impersonate that peer on the VPN network.
Severity
9.3 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-18 03:08 UTC
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/wg-easy/wg-easy/pull/2661 | issue-tracking |
| https://github.com/wg-easy/wg-easy/commit/66b292b… | patch |
| https://www.vulncheck.com/advisories/wireguard-ea… | third-party-advisory |
Impacted products
Date Public
2026-07-12 00:00
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