CVE-2026-48732: Warp SSH Command Injection Vulnerability – HIGH Severity

Technical summary

CVE-2026-48732 is a command injection vulnerability (CWE-78) in Warp's SSH background command processing. The root cause is unsafe concatenation of user-controllable input—specifically the remote working directory path—into shell command strings without proper sanitization or escaping. When Warp's metadata collection routines execute SSH-backed helper commands, they interpolate the remote directory name directly into the command syntax. An attacker who controls the remote repository or directory naming can embed shell metacharacters and command sequences (e.g., backticks, semicolons, pipes) that break out of the intended command context. The injected syntax then executes within the same SSH session, running arbitrary commands with the SSH user's privileges on the remote host. The vulnerability requires user interaction—a developer must connect to an attacker-controlled or compromised host or clone a malicious repository—making the attack vector network-based with low attack complexity.

Business impact

For development teams using Warp, this vulnerability poses a critical supply chain and credential compromise risk. An attacker could poison a Git repository or SSH server to execute arbitrary code within the authenticated SSH session of any developer who connects. This could lead to theft of source code, private keys, environment variables, or other sensitive data stored on the development machine or accessible via the compromised SSH session. Since SSH sessions often carry high-value authentication tokens and access to internal infrastructure, a successful exploit could enable lateral movement and deeper network intrusion. Organizations with strict code review and deployment pipelines remain protected by those controls, but the initial compromise of a developer's machine or SSH session could bypass many security boundaries.

Affected systems

Warp versions from 0.2023.03.21.08.02.stable_00 through 0.2026.05.06.15.42.stable_00 are vulnerable. The fix is included in version 0.2026.05.06.15.42.stable_01 and later. Any development team actively using Warp during this extended window—spanning approximately three years—should verify their installed version and update immediately. Organizations without Warp deployed are unaffected.

Exploitability

The vulnerability requires an attacker to control or compromise a remote SSH server, Git repository, or directory that a developer then connects to via Warp. This is achievable through malicious repository hosting, compromised open-source packages with poisoned SSH endpoints, or direct compromise of internal Git servers. Once a developer initiates an SSH connection via Warp to such a source, the malicious directory name triggers command injection automatically during Warp's metadata collection phase. No additional user action or bypass is required after the initial connection. The CVSS vector (AV:N/AC:L/PR:N/UI:R) reflects that while network-accessible and low-complexity to exploit, user interaction is necessary—the developer must choose to connect to the attacker-controlled system. Exploitation does not appear to be documented in public exploit databases or weaponized kits at publication.

Remediation

Update Warp to version 0.2026.05.06.15.42.stable_01 or later immediately. This patched version properly sanitizes or escapes the remote working directory path before interpolating it into helper commands, preventing command injection. Development teams should audit their Warp deployment version across all machines (including CI/CD environments if Warp is used there) and enforce the patched version via update policies or package management. If immediate patching is not feasible, restrict SSH connections via Warp to trusted, internal hosts and avoid cloning repositories from untrusted sources until the patch is deployed.

Patch guidance

Verify your current Warp version by checking Help > About or running `warp --version` in the terminal. If the version is older than 0.2026.05.06.15.42.stable_01, update via the in-app auto-update mechanism or download the latest version from Warp's official release channel. For enterprise deployments, coordinate patching across development teams and any automation systems that invoke Warp. After patching, restart any open SSH sessions or reconnect to remote hosts to ensure the new command-building logic takes effect. No configuration changes are required; the patch is purely a code-level fix.

Detection guidance

Monitor SSH connection logs on internal Git servers and development hosts for unusual or suspicious directory names containing shell metacharacters (backticks, semicolons, pipes, `$()` syntax) in clone or connect requests. Examine Warp's local logs for errors during metadata collection on remote systems; command injection attempts may generate unexpected output or error messages. If you have SSH traffic capture or IDS/IPS systems in place, look for command injection patterns in SSH session content, particularly unusual commands executed immediately after Warp initiates a connection. Alert on unexpected command execution by SSH-authenticated developer accounts outside normal workflows. Retrospective detection is difficult; focus on preventing new infections by ensuring all systems are patched.

Why prioritize this

This vulnerability merits immediate patching attention due to its HIGH CVSS score (8.8), wide affected version range spanning three years, and attack surface that spans any developer using Warp with external repositories or SSH connections. The vulnerability enables authenticated code execution in the developer's SSH session, potentially exposing source code, credentials, and internal infrastructure access. While it requires social engineering (connecting to a malicious host), the consequences are severe—full compromise of a development environment and access to production deployment keys. The lack of KEV designation and active exploitation reports does not diminish risk; patching is straightforward and carries no known compatibility burden.

Risk score, explained

The CVSS 3.1 score of 8.8 (HIGH) reflects: (1) Network-accessible attack vector—the attacker can host a malicious repository or SSH server reachable over the network; (2) Low attack complexity—no special conditions or bypasses needed beyond the initial connection; (3) No privileges required—the attacker doesn't need prior access; (4) User interaction required—a developer must initiate the connection to Warp; (5) Unchanged scope—the impact is confined to the SSH session and remote host; (6) High confidentiality, integrity, and availability impact—the attacker gains code execution and can exfiltrate data, modify files, or disrupt services. The user-interaction requirement prevents a perfect score, but the ease of triggering via a convincing phishing email or social engineering justifies the 8.8 rating.

Frequently asked questions