XXE in Ambari/Oozie XML Parsing
CVE-2025-23195 is an XML External Entity (XXE) vulnerability in the Ambari/Oozie project. The vulnerability arises from insecure XML parsing using the DocumentBuilderFactory class, where external entity resolution is not disabled. This allows attackers to inject malicious XML entities, potentially leading to the disclosure of arbitrary files on the server or enabling server-side request forgery (SSRF) attacks. The vulnerability is present in versions prior to Ambari 2.7.9 and the trunk branch before the fix.
Are you exposed to this one?
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
DocumentBuilderFactory) to disable external entity resolution by setting the appropriate features (e.g., setFeature("http://apache.org/xml/features/disallow-doctype-decl", true)). Restrict network access to the vulnerable service to trusted sources only until the patch can be applied.Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
2 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.