SMTP command injection via unvalidated command bytes
Published Jul 21, 2025 · Updated Jun 23, 2026
SMTP injection in Eclipse Jakarta Mail allows remote authenticated users to inject commands into an SMTP session via crafted recipient data. The SMTPTransport.sendCommand path wrote command bytes and appended CRLF without rejecting CR or LF already present in the encoded input. Exploitation requires an application to place attacker-controlled recipient data into an SMTP envelope command, enabling added commands or split mail transactions.
Summary
What happened
SMTP injection in Eclipse Jakarta Mail allows remote authenticated users to inject commands into an SMTP session via crafted recipient data. The SMTPTransport.sendCommand path wrote command bytes and appended CRLF without rejecting CR or LF already present in the encoded input. Exploitation requires an application to place attacker-controlled recipient data into an SMTP envelope command, enabling added commands or split mail transactions.
The record
- CVE
- CVE-2025-7962
- Published
- Jul 21, 2025
- Updated
- Jun 23, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-147
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 21, 2025CVE publishedPublication date reported by the CVE source.
- Jun 23, 2026Record updatedLatest update available in the CVE record.
Exploitability
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What is affected?
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Published CVSS scores
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Attacks
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Public exploit references
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Technologies
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