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GHSA-jhmr-57cj-q6g9

Komari vulnerable to 2FA Authentication Bypass

Also known asGO-2025-3873
Published
Aug 12, 2025
Updated
Aug 18, 2025
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed

Blast Radius

1 pkg affected
🐹github.com/komari-monitor/komari

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

Description

Summary

Logic error in 2FA verification condition allows bypass of two-factor authentication

Details

https://github.com/komari-monitor/komari/blob/bd5a6934e1b79a12cf1e6a9bba5372d0e04f3abc/api/login.go#L55

There is no way for Verify2Fa to return an error AND true as ok at the same time, any codes are considered as valid.

PoC

Use any 6 digits as 2FA code

Impact

Bypass 2FA Authentication

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐹Gogithub.com/komari-monitor/komariall versions0.0.0-20250809064056-cc3d54bff4c6

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/komari-monitor/komari. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update github.com/komari-monitor/komari to 0.0.0-20250809064056-cc3d54bff4c6 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-jhmr-57cj-q6g9 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.

  4. How O3 protects you

    O3 pinpoints whether GHSA-jhmr-57cj-q6g9 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-jhmr-57cj-q6g9. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### Summary Logic error in 2FA verification condition allows bypass of two-factor authentication ### Details https://github.com/komari-monitor/komari/blob/bd5a6934e1b79a12cf1e6a9bba5372d0e04f3abc/api/login.go#L55 There is no way for `Verify2Fa` to return an error **AND** true as `ok` at the same time, any codes are considered as valid. ### PoC Use any 6 digits as 2FA code ### Impact Bypass 2FA Authentication
O3 Security · Impact-Aware SCA

Is GHSA-jhmr-57cj-q6g9 in your dependencies?

O3 detects GHSA-jhmr-57cj-q6g9 across Go dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.