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Khoj Open Redirect Vulnerability in Login PageGHSA-564j-v29w-rqr6

MEDIUMFix: khoj-ai/khoj@4daf16e

GHSA-564j-v29w-rqr6 is a medium-severity (CVSS 6.5) vulnerability in khoj-assistant. A fix is available for khoj-assistant — see the affected versions and patch details below.

Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Dec 6, 2024 · OSV.dev, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected
🐍khoj-assistant

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.

Description

Summary

An attacker can use the next parameter on the login page to redirect a victim to a malicious page, while masking this using a legit-looking app.khoj.dev url. For example, https://app.khoj.dev/login?next=//example.com will redirect to the https://example.com page.

Details

The problem seems to be in this method: https://github.com/khoj-ai/khoj/blob/2667ef45449eb408ce1d7c393be04845be31e15f/src/khoj/routers/auth.py#L95

PoC

Open the https://app.khoj.dev/login?next=//example.com url in a Gecko-based browser (Firefox).

Impact

The impact is low, and this could only be used in phishing attempts, but it's still a problem nonetheless.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPIkhoj-assistantall versions1.14.0pip install --upgrade 'khoj-assistant==1.14.0'

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for khoj-assistant, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update khoj-assistant to 1.14.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-564j-v29w-rqr6 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

### Summary An attacker can use the `next` parameter on the login page to redirect a victim to a malicious page, while masking this using a legit-looking `app.khoj.dev` url. For example, `https://app.khoj.dev/login?next=//example.com` will redirect to the https://example.com page. ### Details The problem seems to be in this method: https://github.com/khoj-ai/khoj/blob/2667ef45449eb408ce1d7c393be04845be31e15f/src/khoj/routers/auth.py#L95 ### PoC Open the `https://app.khoj.dev/login?next=//example.com` url in a Gecko-based browser (Firefox). ### Impact The impact is low, and this could only b
O3 Security · Impact-Aware SCA

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Khoj Open Redirect Vulnerability in Login Page