XXE in Apache SIS XML parsing (GeoTIFF/ISO19115/GML/GPX)
Apache SIS contains an XML External Entity (XXE) issue caused by improper restriction of external entity resolution during XML parsing. A crafted XML payload can be embedded in inputs processed by SIS (including GeoTIFF files with the DGIWG GEO_METADATA tag, ISO 19115 metadata XML, GML-defined Coordinate Reference Systems, and GPX files). When SIS parses the malicious XML, external entities can be resolved such that the contents of local files on the server running Apache SIS are disclosed to the attacker. Affected versions are Apache SIS 0.4 through 1.5 (inclusive); the issue is fixed in 1.6.
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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.
javax.xml.accessExternalDTD set to a restrictive, comma-separated allowlist of permitted protocols (including the option of an empty string to disallow external DTD access), e.g. java -Djavax.xml.accessExternalDTD="" ....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
9 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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.