# CVE-2026-1731: BeyondTrust Remote Support (RS) and Privileged Remote Access (PRA) OS Command Injection

> Unauthenticated attackers can execute OS commands via crafted requests in BeyondTrust Remote Support and Privileged Remote Access.

- **Severity:** Critical 9.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:H/SA:L`)
- **Exploited in the wild:** Yes, since 13 Feb 2026 (CISA KEV), used in ransomware
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 6 Feb 2026
- **Updated:** 26 Feb 2026
- **Also known as:** GHSA-p5wr-5p37-2wm6

## What is CVE-2026-1731?

CVE-2026-1731 is a critical command injection vulnerability in BeyondTrust Remote Support(RS) & Privileged Remote Access(PRA), published on 6 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

BeyondTrust Remote Support (RS) and certain older versions of Privileged Remote Access (PRA) contain a critical pre-authentication remote code execution vulnerability. By sending specially crafted requests, an unauthenticated remote attacker may be able to execute operating system commands in the context of the site user.

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command)

## Which versions are affected by CVE-2026-1731?

It affects 2 products.


Products: Beyondtrust Privileged Remote Access, Beyondtrust Remote Support.

## How do I fix CVE-2026-1731?

No fix has been published for CVE-2026-1731 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 16 Feb 2026.

## Is CVE-2026-1731 being exploited?

Yes. Attackers have exploited CVE-2026-1731 in the wild since at least 13 Feb 2026, including in ransomware campaigns.

Public exploit code:

- CVE-2026-1731 - Critical command injection vulnerability in BeyondTrust Remote Support and Privileged Remote Access due to unsafe Bash arithmetic evaluation in a WebSocket-reachable script (github_poc): https://github.com/win3zz/CVE-2026-1731
- CVE-2026-1731 PoC (github_poc): https://github.com/jakubie07/CVE-2026-1731
- Passive vulnerability scanner for CVE-2026-1731 — BeyondTrust RS/PRA pre-auth RCE (CVSS 9.9). Educational & defensive use only. (github_poc): https://github.com/cybrdude/cve-2026-1731-scanner
- CVE-2026-1731 — BeyondTrust Remote Code Execution Vulnerability (github_poc): https://github.com/hex0user/CVE-2026-1731
- BeyondTrust Privileged Remote Access (PRA) and Remote Support (RS) unauthenticated Remote Code Execution (metasploit)
- Scanner: CVE-2026-1731 BeyondTrust Remote Support Pre-auth RCE — Python checker for actively exploited vulnerability (CISA KEV) (github_poc): https://github.com/ridhinva/beyondtrust-rce-scanner

## Other vulnerabilities in BeyondTrust Remote Support(RS) & Privileged Remote Access(PRA)

- [CVE-2024-12356](https://insights.sbomify.com/CVE-2024-12356/): BeyondTrust Privileged Remote Access (PRA) and Remote Support (RS) Command Injection Vulnerability (critical 9.8, exploited in the wild)
- [CVE-2024-12686](https://insights.sbomify.com/CVE-2024-12686/): BeyondTrust Privileged Remote Access (PRA) and Remote Support (RS) OS Command Injection (medium 6.6, exploited in the wild)
- [CVE-2023-4310](https://insights.sbomify.com/CVE-2023-4310/): Command injection in Privileged Remote Access (PRA) (critical 9.8)
- [CVE-2026-40138](https://insights.sbomify.com/CVE-2026-40138/): Critical Pre-Authentication Vulnerability in BeyondTrust Remote Support and Privileged Remote Access (critical 9.2)
- [CVE-2026-40139](https://insights.sbomify.com/CVE-2026-40139/): Critical Pre-Authentication Vulnerability in BeyondTrust Remote Support and Privileged Remote Access (critical 9.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-1731 and fix it if it is affected.

What it is: CVE-2026-1731 is a critical command injection vulnerability in BeyondTrust Remote Support(RS) & Privileged Remote Access(PRA), published on 6 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: Yes. Attackers have exploited CVE-2026-1731 in the wild since at least 13 Feb 2026, including in ransomware campaigns.

Affected product: BeyondTrust Remote Support(RS) & Privileged Remote Access(PRA). No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-1731/ (Markdown: https://insights.sbomify.com/CVE-2026-1731/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-1731
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-1731
- OSV: https://osv.dev/vulnerability/CVE-2026-1731

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-1731/
Summaries are generated and may contain mistakes; the official description above is the record.