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CVE-2026-53878 medium CVSS 6.1

Vulnerability in django (CVE-2026-53878)

Summary

Vulnerability in django (CVE-2026-53878). Risk of unauthorized operations or information disclosure. Exploitable via DomainNameValidator. Mitigation: upgrade to 6.0.7 or later.

Original description

The description as published by the source.

An issue was discovered in Django 6.0 before 6.0.7 and 5.2 before 5.2.16.
DomainNameValidator does not prohibit newlines in domain names (unless used via a form field, since CharField strips newlines). If an application uses values with newlines in an HTTP response, header injection can occur. Django itself is unaffected because HttpResponse prohibits newlines in HTTP headers.
Earlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected.
Django would like to thank Bence Nagy for reporting this issue.

Source: NIST National Vulnerability Database 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-2026-53878 has been found in django.
Attackers can target a specific entry point like DomainNameValidator over the network to misuse the product.
Risk of unauthorized operations or information disclosure. CVSS score: 6.1/10.
What to do: upgrade django to 6.0.7 or later.
If unsure, ask your IT team or search "django CVE-2026-53878" on the vendor's site.

CVE-2026-53878 (django) — CWE-144 / CVSS v3 6.1
Attack vector: remote (network-reachable) / unauthenticated
Attack surface: DomainNameValidator / CharField / HttpResponse
Patched: 6.0.7 — 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-144) exists in django. Attackers reach the vulnerable code path via DomainNameValidator without authentication.

📍 Affected scope

Check the vendor advisory for the affected versions of django. Attack surface: DomainNameValidator / CharField / HttpResponse.

🔥 Severity

Severity: Medium (CVSS 6.1/10). Risk of unauthorized operations or information disclosure.

🔧 How to fix

Update to 6.0.7.

🛡️ 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 'django' . 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 'django' . | 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 django 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 django to 6.0.7

    ステージング環境で 6.0.7 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

pip django
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.7"}]}]
PyPI django
[{"type":"ECOSYSTEM","events":[{"introduced":"5.2"},{"fixed":"5.2.16"},{"introduced":"6.0"},{"fixed":"6.0.7"}]}]
Bitnami django
[{"type":"SEMVER","events":[{"introduced":"5.2.0"},{"fixed":"5.2.16"},{"introduced":"6.0.0"},{"fixed":"6.0.7"}]}]

Fix status by distribution

Fixed packages published by each distribution for this CVE

References

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