Header injection via unsanitized Content-Disposition filenames
Published Aug 27, 2026 · Updated Aug 27, 2026
HTTP response splitting in affected Spring Framework releases allows attackers to inject headers through malicious file names. ContentDisposition serialization writes attacker-controlled file names into response or multipart-part headers without rejecting control characters. The response path requires a non-default or legacy connector; the multipart path is connector-independent and permits header injection or body-framing corruption.
Summary
What happened
HTTP response splitting in affected Spring Framework releases allows attackers to inject headers through malicious file names. ContentDisposition serialization writes attacker-controlled file names into response or multipart-part headers without rejecting control characters. The response path requires a non-default or legacy connector; the multipart path is connector-independent and permits header injection or body-framing corruption.
The record
- CVE
- CVE-2026-59314
- Published
- Aug 27, 2026
- Updated
- Aug 27, 2026
- Vendor
- Spring
- Product
- Spring Framework
- Classifications
- CWE-113
- Attack vector
- network
- Privileges
- Unavailable
Timeline
How it unfolded
- Aug 27, 2026CVE publishedPublication date reported by the CVE source.
- Aug 27, 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=0 <=5.2.25.RELEASE
- Affected versionversion=5.3.0 <=5.3.49
- Affected versionversion=6.0.0 <=6.0.30
- Affected versionversion=6.1.0 <=6.1.28
- Affected versionversion=6.2.0 <=6.2.19
- Affected versionversion=7.0.0 <=7.0.8
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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