CVE-2025-41234
MEDIUMDescription In Spring Framework, versions 6.0.x as of 6.0.5, versions 6.1.x and 6.2.x, an application is vulnerable to a reflected file download (RFD) attack when it sets a “Content-Disposition”…
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
Description
Description
In Spring Framework, versions 6.0.x as of 6.0.5, versions 6.1.x and 6.2.x, an application is vulnerable to a reflected file download (RFD) attack when it sets a “Content-Disposition” header with a non-ASCII charset, where the filename attribute is derived from user-supplied input.
Specifically, an application is vulnerable when all the following are true:
- The header is prepared with org.springframework.http.ContentDisposition.
- The filename is set via ContentDisposition.Builder#filename(String, Charset).
- The value for the filename is derived from user-supplied input.
- The application does not sanitize the user-supplied input.
- The downloaded content of the response is injected with malicious commands by the attacker (see RFD paper reference for details).
An application is not vulnerable if any of the following is true:
-
The application does not set a “Content-Disposition” response header.
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The header is not prepared with org.springframework.http.ContentDisposition.
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The filename is set via one of: * ContentDisposition.Builder#filename(String), or
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ContentDisposition.Builder#filename(String, ASCII)
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The filename is not derived from user-supplied input.
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The filename is derived from user-supplied input but sanitized by the application.
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The attacker cannot inject malicious content in the downloaded content of the response.
Affected Spring Products and VersionsSpring Framework:
- 6.2.0 - 6.2.7
- 6.1.0 - 6.1.20
- 6.0.5 - 6.0.28
- Older, unsupported versions are not affected
MitigationUsers of affected versions should upgrade to the corresponding fixed version.
Affected version(s)Fix versionAvailability6.2.x6.2.8OSS6.1.x6.1.21OSS6.0.x6.0.29 Commercial https://enterprise.spring.io/ No further mitigation steps are necessary.
CWE-113 in Content-Disposition handling in VMware Spring Framework versions 6.0.5 to 6.2.7 allows remote attackers to launch Reflected File Download (RFD) attacks via unsanitized user input in ContentDisposition.Builder#filename(String, Charset) with non-ASCII charsets.
Detection & mitigation playbook
VulnerabilityDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for the affected component. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Remediation status
No patched version of the affected component has shipped for CVE-2025-41234 yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.
Mitigate without a patch
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether CVE-2025-41234 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to CVE-2025-41234. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2025-41234 in your dependencies?
O3 detects CVE-2025-41234 across dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.