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CVE-2025-61726 high CVSS 7.5

Vulnerability in stdlib (CVE-2025-61726)

Summary

Vulnerability in stdlib (CVE-2025-61726). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 1.24.12, 1.25.6 or later.

Original description

The description as published by the source.

The net/url package does not set a limit on the number of query parameters in a query.

While the maximum size of query parameters in URLs is generally limited by the maximum request header size, the net/http.Request.ParseForm method can parse large URL-encoded forms. Parsing a large form containing many unique query parameters can cause excessive memory consumption.

Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV

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-2025-61726 has been found in stdlib.
Risk of unauthorized operations or information disclosure. CVSS score: 7.5/10.
What to do: upgrade stdlib to 1.24.12, 1.25.6 or later.
If unsure, ask your IT team or search "stdlib CVE-2025-61726" on the vendor's site.

CVE-2025-61726 (stdlib) — CWE-770 / CVSS v3 7.5
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Patched: 1.24.12, 1.25.6 — 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-770) exists in stdlib.

📍 Affected scope

Check the vendor advisory for the affected versions of stdlib.

🔥 Severity

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

🔧 How to fix

Update to 1.24.12, 1.25.6.

🛡️ 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 'stdlib' . 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 'stdlib' . | 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 stdlib 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 stdlib to 1.24.12, 1.25.6

    ステージング環境で 1.24.12, 1.25.6 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 stdlib
[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.24.12"},{"introduced":"1.25.0"},{"fixed":"1.25.6"}]}]
Bitnami golang
[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.24.12"},{"introduced":"1.25.0"},{"fixed":"1.25.6"}]}]

Fix status by distribution

Fixed packages published by each distribution for this CVE

References

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