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Medium, CVSS 5.9

Tor path lengths too short when "full Vanguards" configured

CVE-2024-35313GHSA-c96h-cxx6-rmg9

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (arti 1.2.3; tor-circmgr 0.18.1), redeploy, then verify what is actually installed.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

Affected packages

  • crates.io arti

    Affected
    >= 1.2.2, <= 1.2.2
    Fixed in
    1.2.3
  • crates.io tor-circmgr

    Affected
    >= 0.18.0, <= 0.18.0
    Fixed in
    0.18.1

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
5.9 · CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
  • CVE-2024-35313: 0.30% estimated exploitation activity in the next 30 days; percentile 22.59 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

In Tor Arti before 1.2.3, circuits sometimes incorrectly have a length of 3 (with full vanguards), aka TROVE-2024-004.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 1 · created ·

    Published from ghsa record GHSA-c96h-cxx6-rmg9

Agent brief

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# Patch Next advisory brief: CVE-2024-35313

Advisory: Tor path lengths too short when "full Vanguards" configured
IDs: CVE-2024-35313, GHSA-c96h-cxx6-rmg9
Record: https://patchnext.com/advisories/cve-2024-35313 (revision 1, source checked 26 Oct 2026, 15:38 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 5.9)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: arti 1.2.3; tor-circmgr 0.18.1. A vendor fix does not mean a deployment is fixed.

## Affected components
- crates.io arti: affected >= 1.2.2, <= 1.2.2; fixed in 1.2.3
- crates.io tor-circmgr: affected >= 0.18.0, <= 0.18.0; fixed in 0.18.1

## Suggested inspection (read-only)
- crates.io arti: check the installed version with your package manager.
- crates.io tor-circmgr: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on arti, tor-circmgr.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-c96h-cxx6-rmg9 (GitHub-reviewed advisory GHSA-c96h-cxx6-rmg9 lists affected ranges: crates.io tor-circmgr >=0.18.0 =1.2.2 <=1.2.2)

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