Vulnerability in net.sourceforge.htmlunit:neko-htmlunit (CVE-2022-29546)
Summary
Vulnerability in net.sourceforge.htmlunit:neko-htmlunit (CVE-2022-29546). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 2.61.0 or later.
Original description
The description as published by the source.
HtmlUnit NekoHtml Parser before 2.61.0 suffers from a denial of service vulnerability. Crafted input associated with the parsing of Processing Instruction (PI) data leads to heap memory consumption. This is similar to CVE-2022-28366 but affects a much later version of the product.
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-2022-29546 has been found in net.sourceforge.htmlunit:neko-htmlunit.
Risk of unauthorized operations or information disclosure.
What to do: upgrade net.sourceforge.htmlunit:neko-htmlunit to 2.61.0 or later.
If unsure, ask your IT team or search "net.sourceforge.htmlunit:neko-htmlunit CVE-2022-29546" on the vendor's site.
CVE-2022-29546 (net.sourceforge.htmlunit:neko-htmlunit) — CWE-400
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Patched: 2.61.0 — 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.
A vulnerability (CWE-400) exists in net.sourceforge.htmlunit:neko-htmlunit.
Check the vendor advisory for the affected versions of net.sourceforge.htmlunit:neko-htmlunit.
Severity: ?. Risk of unauthorized operations or information disclosure.
Update to 2.61.0.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで net.sourceforge.htmlunit:neko-htmlunit を使っているサービスとバージョンを洗い出す。
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2Apply patch patch
Upgrade net.sourceforge.htmlunit:neko-htmlunit to 2.61.0ステージング環境で 2.61.0 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。
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3Post-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
References
- advisory github.com
- advisory nvd.nist.gov
- advisory github.com
- package github.com
- web github.com