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CVE-2026-49975 high CVSS 7.5

Vulnerability in apache (CVE-2026-49975)

Summary

Vulnerability in apache (CVE-2026-49975). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 2.4.68 or later.

Original description

The description as published by the source.

Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's mod_http leads to denial of service via malicious HTTP requests.

This issue affects Apache HTTP Server: from 2.4.17 through 2.4.67.

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-2026-49975 has been found in apache.
Risk of unauthorized operations or information disclosure. CVSS score: 7.5/10.
What to do: upgrade apache to 2.4.68 or later.
If unsure, ask your IT team or search "apache CVE-2026-49975" on the vendor's site.

CVE-2026-49975 (apache) — CWE-789 / CVSS v3 7.5
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Patched: 2.4.68 — 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-789) exists in apache.

📍 Affected scope

Check the vendor advisory for the affected versions of apache.

🔥 Severity

Severity: High (CVSS 7.5/10). Risk of unauthorized operations or information disclosure.

🔧 How to fix

Update to 2.4.68.

🛡️ 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 'apache' . 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 'apache' . | 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 apache 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 apache to 2.4.68

    ステージング環境で 2.4.68 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

Bitnami apache
[{"type":"SEMVER","events":[{"introduced":"2.4.17"},{"fixed":"2.4.68"}]}]

Fix status by distribution

Fixed packages published by each distribution for this CVE

References

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