undertow at a glance
- Last 12 months
- 0
- Critical · all time
- 0
- Exploited · all time
- 0
- Public exploit · all time
- 1
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| Month | Vulnerabilities | Critical |
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| Nov 2026 | 0 | 0 |
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3 results · Feed
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High 7.5
Moderate severity vulnerability that affects io.undertow:undertow-core
It was found in Undertow before 1.3.28 that with non-clean TCP close, the Websocket server gets into infinite loop on every IO thread, effectively causing DoS.
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Medium 6.5CVE-2017-2666 Public exploit
Undertow-core vulnerable to HTTP Request Smuggling
It was discovered in Undertow that the code that parsed the HTTP request line permitted invalid characters. This could be exploited, in conjunction with a proxy that also permitted the invalid characters but with a different interpretation, to inject data int…
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Medium 5.4
Improper Neutralization of CRLF Sequences in HTTP Headers in Undertow
In Undertow before versions 7.1.2.CR1, 7.1.2.GA it was found that the fix for CVE-2016-4993 was incomplete and Undertow web server is vulnerable to the injection of arbitrary HTTP headers, and also response splitting, due to insufficient sanitization and vali…