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CVE-2026-62252 critical CVSS 9.8

Vulnerability in github.com/sipcapture/homer-app (CVE-2026-62252)

Summary

Vulnerability in github.com/sipcapture/homer-app (CVE-2026-62252). Successful exploitation can lead to full system takeover. Exploitable via admin. Mitigation: upgrade to 0.0.0-20260625091610-b2e942031ff8 or later.

Original description

The description as published by the source.

Summary

On every fresh Homer deployment using internal authentication, the bootstrap process automatically creates an admin account with the password sipcapture (stored as a legacy SHA-256 hex hash). There is no first-login forced-change mechanism. Any attacker who reaches the login endpoint immediately gains full administrative access.

Details

config/config.go lines 858-861:

// DefaultInternalAuthPasswordHash is the SHA-256 hex digest of the default
// bootstrap password (cleartext: sipcapture).
const DefaultInternalAuthPasswordHash = "883ffc1f37fd0fe542b0fb9740035c4383e7d976c411161d24e62edace280f90"

coordinator/services/auth_bootstrap.go lines 20-71: EnsureBootstrapAdminUser() runs at startup. If no admin user exists, it inserts a row with username=admin, password_hash=DefaultInternalAuthPasswordHash. No force_change, no first_login flag, no expiry is set.

coordinator/services/auth_bootstrap_test.go line 114 confirms the plaintext:

u, err := svc.Authenticate(ctx, "admin", "sipcapture")

passwordhash/password.go lines 36-45: Legacy SHA-256 hex hashes are accepted via legacySHA256HexEqual, so the default credential is functional on any deployment.

PoC

# Authenticate with default credentials — works on any fresh Homer deployment
curl -s -X POST http:///api/v3/auth \
  -H 'Content-Type: application/json' \
  -d '{"username":"admin","password":"sipcapture"}'
# Response: {"token":"","data":{"userG…

Source: GitHub Security Advisories (Global) NVD GitHub Advisory

Auto-generated summary

Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.

A vulnerability tracked as CVE-2026-62252 has been found in github.com/sipcapture/homer-app.
Attackers can target a specific entry point like admin over the network to misuse the product.
Successful exploitation can lead to full system takeover. CVSS score: 9.8/10.
What to do: upgrade github.com/sipcapture/homer-app to 0.0.0-20260625091610-b2e942031ff8 or later.
If unsure, ask your IT team or search "github.com/sipcapture/homer-app CVE-2026-62252" on the vendor's site.

CVE-2026-62252 (github.com/sipcapture/homer-app) — CWE-798 / CVSS v3 9.8
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Attack surface: admin / sipcapture / force_change / first_login
Patched: 0.0.0-20260625091610-b2e942031ff8 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.

❓ What is the problem

A vulnerability (CWE-798) exists in github.com/sipcapture/homer-app. Attackers reach the vulnerable code path via admin without authentication.

📍 Affected scope

Check the vendor advisory for the affected versions of github.com/sipcapture/homer-app. Attack surface: admin / sipcapture / force_change / first_login.

🔥 Severity

Severity: Critical (CVSS 9.8/10). Successful exploitation can lead to full system takeover.

🔧 How to fix

Update to 0.0.0-20260625091610-b2e942031ff8.

🛡️ Workaround

Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.

🔍 Detection

Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'github.com/sipcapture/homer-app' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.

Response actions

Concrete steps and command examples for SOC/SRE teams to execute in order

  1. 1
    Identify exposure identify 
    grep -r 'github.com/sipcapture/homer-app' . | grep -v node_modules

    リポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で github.com/sipcapture/homer-app を grep し、稼働しているサービス・バージョンを把握する。

  2. 2
    Apply patch patch 
    Upgrade github.com/sipcapture/homer-app to 0.0.0-20260625091610-b2e942031ff8

    ステージング環境で 0.0.0-20260625091610-b2e942031ff8 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。

  3. 3
    Post-deployment verification verify 
    Confirm patched version is live in production

    パッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。

Affected packages

go github.com/sipcapture/homer-app
[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.0.0-20260625091610-b2e942031ff8"}]}]

References

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