# CVE-2026-102764: BeyondTrust Remote Support Authentication Bypass by Spoofing

> Attackers can perform file operations on the BeyondTrust Remote Support appliance due to improper origin validation in internal messaging components.

- **Severity:** Critical 9.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Yes, since 16 Oct 2026 (CISA KEV)
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 15 Oct 2026
- **Updated:** 17 Oct 2026
- **Also known as:** GHSA-pf95-v8m2-73q8

## What is CVE-2026-102764?

CVE-2026-102764 is a critical vulnerability in BeyondTrust Remote Support, published on 15 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The vulnerability exists within internal components of BeyondTrust’s Remote Support product. The components did not adequately validate the origin of the messages it received. Under the right conditions, this could allow an attacker to perform file operations on the appliance.

Weakness: CWE-290 (Authentication Bypass by Spoofing)

## Which versions are affected by CVE-2026-102764?

It affects 1 product.


Products: Beyondtrust Remote Support.

## How do I fix CVE-2026-102764?

No fix has been published for CVE-2026-102764 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 19 Oct 2026.

## Is CVE-2026-102764 being exploited?

Yes. Attackers have exploited CVE-2026-102764 in the wild since at least 16 Oct 2026.

Public exploit code:

- CVE-2026-102764 BeyondTrust Remote Support unauthenticated file write / RCE proof of concept (github_poc): https://github.com/Worthes/CVE-2026-102764-Proof-of-concept
- CVE-2026-102764 — BeyondTrust Remote Support Exploit (github_poc): https://github.com/maxprog-svg/CVE-2026-102764
- Offline BeyondTrust Remote Support evidence checker for CVE-2026-102764. Remote Support version and configuration evidence. Standalone Python; JSON/CSV/HTML reports; no exploit payloads. (github_poc): https://github.com/CompleteTech-Security/beyondtrust-remote-support-cve-2026-102764-check

## Other vulnerabilities in BeyondTrust Remote Support

- [CVE-2017-5996](https://insights.sbomify.com/CVE-2017-5996/): Privilege escalation in n/a (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-102764 and fix it if it is affected.

What it is: CVE-2026-102764 is a critical vulnerability in BeyondTrust Remote Support, published on 15 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: Yes. Attackers have exploited CVE-2026-102764 in the wild since at least 16 Oct 2026.

Affected product: BeyondTrust Remote Support. 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-2026-102764/ (Markdown: https://insights.sbomify.com/CVE-2026-102764/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-102764
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-102764
- OSV: https://osv.dev/vulnerability/CVE-2026-102764

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-102764/
Summaries are generated and may contain mistakes; the official description above is the record.