Vulnerability in java (CVE-2026-23865)

Summary

Vulnerability in java (CVE-2026-23865). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 11.0.31, 17.0.19, 21.0.11, 25.0.3, 26.0.1 or later.

Original description

The description as published by the source.

An integer overflow in the tt_var_load_item_variation_store function of the Freetype library in versions 2.13.2 and 2.13.3 may allow for an out of bounds read operation when parsing HVAR/VVAR/MVAR tables in OpenType variable fonts. This issue is fixed in version 2.14.2.

Source: OSV.dev (Open Source Vulnerabilities) NVD 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-2026-23865 has been found in java.
Risk of unauthorized operations or information disclosure.
What to do: upgrade java to 11.0.31, 17.0.19, 21.0.11, 25.0.3, 26.0.1 or later.
If unsure, ask your IT team or search "java CVE-2026-23865" on the vendor's site.

CVE-2026-23865 (java)
Attack vector: local / unauthenticated
Patched: 11.0.31, 17.0.19, 21.0.11, 25.0.3, 26.0.1 — 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 (unclassified) exists in java.

📍 Affected scope

Check the vendor advisory for the affected versions of java.

🔥 Severity

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

🔧 How to fix

Update to 11.0.31, 17.0.19, 21.0.11, 25.0.3, 26.0.1.

🛡️ 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 'java' . 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
Identify exposure identify
```
grep -r 'java' . | 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 java を grep し、稼働しているサービス・バージョンを把握する。
2
Apply patch patch
```
Upgrade java to 11.0.31, 17.0.19, 21.0.11, 25.0.3, 26.0.1
```
ステージング環境で 11.0.31, 17.0.19, 21.0.11, 25.0.3, 26.0.1 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
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 java

[{"type":"SEMVER","events":[{"introduced":"9.0.0"},{"fixed":"11.0.31"},{"introduced":"12.0.0"},{"fixed":"17.0.19"},{"introduced":"18.0.0"},{"fixed":"21.0.11"},{"introduced":"22.0.0"},{"fixed":"25.0.3"},{"introduced":"26.0.0"},{"fixed":"26.0.1"}]}]

Bitnami java-min

[{"type":"SEMVER","events":[{"introduced":"9.0.0"},{"fixed":"11.0.31"},{"introduced":"12.0.0"},{"fixed":"17.0.19"},{"introduced":"18.0.0"},{"fixed":"21.0.11"},{"introduced":"22.0.0"},{"fixed":"25.0.3"},{"introduced":"26.0.0"},{"fixed":"26.0.1"}]}]

Bitnami jre

[{"type":"SEMVER","events":[{"introduced":"9.0.0"},{"fixed":"11.0.31"},{"introduced":"12.0.0"},{"fixed":"17.0.19"},{"introduced":"18.0.0"},{"fixed":"21.0.11"},{"introduced":"22.0.0"},{"fixed":"25.0.3"},{"introduced":"26.0.0"},{"fixed":"26.0.1"}]}]

Fix status by distribution

Fixed packages published by each distribution for this CVE

BellSoft Alpaquita BELL-CVE-2026-23865 freetype Fixed in: 2.13.3-r1
Debian DEBIAN-CVE-2026-23865 freetype Fixed in: 2.13.3+dfsg-1+deb13u1
Ubuntu UBUNTU-CVE-2026-23865 openjdk-8 Fixed in: 8u492-ga~us2-0ubuntu1~16.04.1

Summary

Original description

Auto-generated summary

Response actions

Affected packages

Fix status by distribution

References