CVE-2019-17569
The refactoring present in Apache Tomcat 9.0.28 to 9.0.30, 8.5.48 to 8.5.50 and 7.0.98 to 7.0.99 introduced a regression.
Does this matter?
Lower severity and a low EPSS score (8.87%). Track it; it rarely justifies an emergency change on its own.
Description
The refactoring present in Apache Tomcat 9.0.28 to 9.0.30, 8.5.48 to 8.5.50 and 7.0.98 to 7.0.99 introduced a regression. The result of the regression was that invalid Transfer-Encoding headers were incorrectly processed leading to a possibility of HTTP Request Smuggling if Tomcat was located behind a reverse proxy that incorrectly handled the invalid Transfer-Encoding header in a particular manner. Such a reverse proxy is considered unlikely.
- CVSS 3.1
- 4.8 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
- EPSS
- 8.87% probability · 95th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-444
- Affected
- apache/tomcat · apache/tomee · opensuse/leap · netapp/data availability services · netapp/oncommand system manager · debian/debian linux · oracle/agile engineering data management · oracle/agile product lifecycle management · oracle/communications instant messaging server · oracle/health sciences empirica inspections · oracle/health sciences empirica signal · oracle/hospitality guest access · oracle/instantis enterprisetrack · oracle/mysql enterprise monitor · oracle/transportation management · oracle/workload manager
- Source
- security@apache.org
EPSS 8.9% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00025.htmlMailing List, Third Party Advisory
- https://lists.apache.org/thread.html/r7bc994c965a34876bd94d5ff15b4e1e30b6220a15eb9b47c81915b78%40%3Ccommits.tomee.apache.org%3E
- https://lists.apache.org/thread.html/r88def002c5c78534674ca67472e035099fbe088813d50062094a1390%40%3Cannounce.tomcat.apache.org%3EMailing List, Vendor Advisory
- https://lists.apache.org/thread.html/rc31cbabb46cdc58bbdd8519a8f64b6236b2635a3922bbeba0f0e3743%40%3Ccommits.tomee.apache.org%3E
- https://lists.debian.org/debian-lts-announce/2020/03/msg00006.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200327-0005/Third Party Advisory
- https://www.debian.org/security/2020/dsa-4673Third Party Advisory
- https://www.debian.org/security/2020/dsa-4680Third Party Advisory
- https://www.oracle.com/security-alerts/cpujan2021.htmlPatch, Third Party Advisory
- https://www.oracle.com/security-alerts/cpujul2020.htmlPatch, Third Party Advisory
- https://www.oracle.com/security-alerts/cpuoct2020.htmlPatch, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00025.htmlMailing List, Third Party Advisory
- https://lists.apache.org/thread.html/r7bc994c965a34876bd94d5ff15b4e1e30b6220a15eb9b47c81915b78%40%3Ccommits.tomee.apache.org%3E
- https://lists.apache.org/thread.html/r88def002c5c78534674ca67472e035099fbe088813d50062094a1390%40%3Cannounce.tomcat.apache.org%3EMailing List, Vendor Advisory
- https://lists.apache.org/thread.html/rc31cbabb46cdc58bbdd8519a8f64b6236b2635a3922bbeba0f0e3743%40%3Ccommits.tomee.apache.org%3E
- https://lists.debian.org/debian-lts-announce/2020/03/msg00006.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200327-0005/Third Party Advisory
- https://www.debian.org/security/2020/dsa-4673Third Party Advisory
- https://www.debian.org/security/2020/dsa-4680Third Party Advisory
- https://www.oracle.com/security-alerts/cpujan2021.htmlPatch, Third Party Advisory
- https://www.oracle.com/security-alerts/cpujul2020.htmlPatch, Third Party Advisory
- https://www.oracle.com/security-alerts/cpuoct2020.htmlPatch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.