Arbitrary file write via separator-mismatched sanitization
Published Feb 20, 2026 · Updated Feb 20, 2026
Path traversal in Spring Data Geode snapshot import allows attackers to write files outside the extraction directory on Windows. The filename sanitizer strips directory components using the platform-native separator, but Windows uses backslashes while ZIP entries use forward slashes, leaving ../ sequences intact. Exploitation requires a Windows-hosted application to import an attacker-controlled ZIP or JAR with write access to the target path; successful use overwrites application-accessible files.
Summary
What happened
Path traversal in Spring Data Geode snapshot import allows attackers to write files outside the extraction directory on Windows. The filename sanitizer strips directory components using the platform-native separator, but Windows uses backslashes while ZIP entries use forward slashes, leaving ../ sequences intact. Exploitation requires a Windows-hosted application to import an attacker-controlled ZIP or JAR with write access to the target path; successful use overwrites application-accessible files.
The record
- CVE
- CVE-2026-2818
- Published
- Feb 20, 2026
- Updated
- Feb 20, 2026
- Vendor
- VMware
- Product
- Spring Data for Apache Geode
- Classifications
- CWE-22, CWE-23, CAPEC-139, CAPEC-126, T1204.002
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 20, 2026CVE publishedPublication date reported by the CVE source.
- Feb 20, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=2.0.0.RELEASE <=2.7.18
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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