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Vulnerability record · CVE-2020-1695 · published 19 May 2020

CVE-2020-1695: Redhat resteasy improper input validation vulnerability

Redhat · Resteasy

A flaw was found in all resteasy 3.x.x versions prior to 3.12.0.Final and all resteasy 4.x.x versions prior to 4.6.0.Final, where an improper input validation results in returning an illegal header that integrates into the server's response. This flaw may result in an injection, which leads to unexpected behavior when the HTTP response is constructed.

7.5 CVSS 3.1 High EPSS 2.0% · top 20.4% CWE-20 · Improper input validation
7.5CVSS 3.1 base score, v2 5.0
2.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

A flaw was found in all resteasy 3.x.x versions prior to 3.12.0.Final and all resteasy 4.x.x versions prior to 4.6.0.Final, where an improper input validation results in returning an illegal header that integrates into the server's response. This flaw may result in an injection, which leads to unexpected behavior when the HTTP response is constructed.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1695 Issue TrackingPatchVendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IJDMT443YZWCBS5NS76XZ7T
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RX22C6I56BJUER76IIPYHGZ
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1695 Issue TrackingPatchVendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IJDMT443YZWCBS5NS76XZ7T
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RX22C6I56BJUER76IIPYHGZ

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Source: NIST National Vulnerability Database (record CVE-2020-1695), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.