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CVE-2023-46589

Vulnerability in org.apache.tomcat:tomcat-catalina (CVE-2023-46589)

Summary

Vulnerability in org.apache.tomcat:tomcat-catalina (CVE-2023-46589). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 8.5.96 or later.

Original description

The description as published by the source.

Improper Input Validation vulnerability in Apache Tomcat. Tomcat from 11.0.0-M1 through 11.0.0-M10, from 10.1.0-M1 through 10.1.15, from 9.0.0-M1 through 9.0.82, and from 8.5.0 through 8.5.95 did not correctly parse HTTP trailer headers. A trailer header that exceeded the header size limit could cause Tomcat to treat a single request as multiple requests leading to the possibility of request smuggling when behind a reverse proxy. Older, EOL versions may also be affected.

Users are recommended to upgrade to version 11.0.0-M11 onwards, 10.1.16 onwards, 9.0.83 onwards or 8.5.96 onwards, which fix the issue.

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-2023-46589 has been found in org.apache.tomcat:tomcat-catalina.
Risk of unauthorized operations or information disclosure.
What to do: upgrade org.apache.tomcat:tomcat-catalina to 8.5.96 or later.
If unsure, ask your IT team or search "org.apache.tomcat:tomcat-catalina CVE-2023-46589" on the vendor's site.

CVE-2023-46589 (org.apache.tomcat:tomcat-catalina) — CWE-20
Patched: 8.5.96 — 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-20) exists in org.apache.tomcat:tomcat-catalina.

📍 Affected scope

Check the vendor advisory for the affected versions of org.apache.tomcat:tomcat-catalina.

🔥 Severity

Severity: ?. Risk of unauthorized operations or information disclosure.

🔧 How to fix

Update to 8.5.96.

🛡️ 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. Audit SBOM/dependencies to find affected services.

Response actions

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

  1. 1
    Identify exposure identify 
    Audit SBOM/dependencies for affected components.

    資産台帳・SBOM・依存マニフェストで org.apache.tomcat:tomcat-catalina を使っているサービスとバージョンを洗い出す。

  2. 2
    Apply patch patch 
    Upgrade org.apache.tomcat:tomcat-catalina to 8.5.96

    ステージング環境で 8.5.96 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

maven org.apache.tomcat:tomcat-catalina
[{"type":"ECOSYSTEM","events":[{"introduced":"8.5.0"},{"fixed":"8.5.96"}]}]
maven org.apache.tomcat.embed:tomcat-embed-core
[{"type":"ECOSYSTEM","events":[{"introduced":"8.5.0"},{"fixed":"8.5.96"}]}]
maven org.apache.tomcat:tomcat-coyote
[{"type":"ECOSYSTEM","events":[{"introduced":"11.0.0-M1"},{"fixed":"11.0.0-M11"}]}]
Bitnami tomcat
[{"type":"SEMVER","events":[{"introduced":"8.5.0"},{"fixed":"8.5.96"},{"introduced":"9.0.0"},{"fixed":"9.0.83"},{"introduced":"10.1.0"},{"fixed":"10.1.16"}]}]

Fix status by distribution

Fixed packages published by each distribution for this CVE

References

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