CVE-2026-102495
Apache Xmlschema: denial of service
- Risk score
- 59/100
- CVSS
- 7.5 v3.1
- Exploit chance (30 days)
- 0.5%
- Published
- 29 Sep 2026
Open in the live forecast Today's forecast
What to know
- What it is
- Apache XmlSchema doesn't limit how deeply schema imports and includes can be nested, so a malicious schema can make parsing recurse until the stack overflows. This causes a denial of service. Users are recommended to upgrade to version 2.3.3, which fixes this issue.
- Affected
- Apache Xmlschema before 2.3.3
- Fix
- Upgrade Apache Xmlschema to 2.3.3 or later.
- Exploitation
- No known exploitation
Story map
At a glance
Apache Xmlschema: Yellow, plan it in. Apache XmlSchema doesn't limit how deeply schema imports and includes can be nested, so a malicious schema can make parsing recurse until the stack overflows. This causes a denial of service. Users are recommended to upgrade to version 2.3.3, which fixes this issue.
The flaws
- CVE-2026-102495: Denial of service (CVSS 7.5 · EPSS 1%)
- CVE-2026-102496: Denial of service (CVSS 7.5 · EPSS 1%)
- CVE-2026-102497: Denial of service (CVSS 7.5 · EPSS 1%)
The fix
Upgrade Apache Xmlschema: 2.3.3 or later on your release line
Who is exposed: Apache Xmlschema before 2.3.3
Where it stands
- No known exploitation
Connects to
- Same weakness: CWE-674 (CWE-674). 54 other warnings in 30 days
Why it is Yellow
- CVSS 7.5 high
- Remotely exploitable without logging in
References
Original description
Apache XmlSchema doesn't limit how deeply schema imports and includes can be nested, so a malicious schema can make parsing recurse until the stack overflows. This causes a denial of service. Users are recommended to upgrade to version 2.3.3, which fixes this issue.
Last activity 29 Sep 2026. Patch Forecast updates every hour.