CVE catalog
CVE-2021-28164
jetty9: CVE-2021-28164
- Severity
- Medium · CVSS 5.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 82.37% · Oct 25, 2026
In Eclipse Jetty 9.4.37.v20210219 to 9.4.38.v20210224, the default compliance mode allows requests with URIs that contain %2e or %2e%2e segments to access protected resources within the WEB-INF directory. For example a request to /context/%2e/WEB-INF/web.xml can retrieve the web.xml file. This can reveal sensitive information regarding the implementation of a web application.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | jetty9 | sid | 9.4.58-2 | fixed |
| Debian | jetty9 | forky | 9.4.58-2 | fixed |
| Debian | jetty9 | trixie | 9.4.57-1.1~deb13u1 | fixed |
| Debian | jetty9 | trixie-security | 9.4.57-1.1~deb13u1 | fixed |
| Debian | jetty9 | bookworm | 9.4.57-1.1~deb12u1 | fixed |
| Debian | jetty9 | bookworm-security | 9.4.57-1.1~deb12u1 | fixed |
| Ubuntu | equinox-bundles | 18.04 | 4.9-2~18.04 | vulnerable |
| Ubuntu | equinox-bundles | 20.04 | 4.12-1 | vulnerable |
| Ubuntu | equinox-bundles | 20.04 | 4.13-1 | vulnerable |
| Ubuntu | equinox-bundles | 22.04 | 4.18-1 | vulnerable |
| Ubuntu | equinox-bundles | 22.04 | 4.19-1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | jetty9 | source | sid | 9.4.39-1 | not yet assigned | Not reported | Not reported |
| Debian | jetty9 | source | forky | 9.4.39-1 | not yet assigned | Not reported | Not reported |
| Debian | jetty9 | source | trixie | 9.4.39-1 | not yet assigned | Not reported | Not reported |
| Debian | jetty9 | source | bookworm | 9.4.39-1 | not yet assigned | Not reported | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
[Debian 12 (Bookworm)]
- [jetty9]Unknown
Details (4)
9.4.57-1.1~deb12u1· all · bookwormFixed · Fixed:
9.4.39-1dsa · jetty9 · debian · bookworm; dsa · jetty9 · debian · 12
9.4.57-1.1~deb12u1· all · bookwormFixed · Fixed:
9.4.39-1dsa · jetty9 · debian · bookworm; dsa · jetty9 · debian · 12
9.4.57-1.1~deb12u1· all · bookworm-securityFixed · Fixed:
9.4.39-1dsa · jetty9 · debian · bookworm; dsa · jetty9 · debian · 12
9.4.57-1.1~deb12u1· all · bookworm-securityFixed · Fixed:
9.4.39-1dsa · jetty9 · debian · bookworm; dsa · jetty9 · debian · 12
- [libjetty9-extra-java]Unknown
Source package: [jetty9]
Details (4)
9.4.57-1.1~deb12u1· all · bookwormFixed · Fixed:
9.4.39-1dsa · jetty9 · debian · bookworm; dsa · jetty9 · debian · 12
9.4.57-1.1~deb12u1· all · bookwormFixed · Fixed:
9.4.39-1dsa · jetty9 · debian · bookworm; dsa · jetty9 · debian · 12
9.4.57-1.1~deb12u1· all · bookworm-securityFixed · Fixed:
9.4.39-1dsa · jetty9 · debian · bookworm; dsa · jetty9 · debian · 12
9.4.57-1.1~deb12u1· all · bookworm-securityFixed · Fixed:
9.4.39-1dsa · jetty9 · debian · bookworm; dsa · jetty9 · debian · 12
- [libjetty9-java]Unknown
Source package: [jetty9]
Details (4)
9.4.57-1.1~deb12u1· all · bookwormFixed · Fixed:
9.4.39-1dsa · jetty9 · debian · bookworm; dsa · jetty9 · debian · 12
9.4.57-1.1~deb12u1· all · bookwormFixed · Fixed:
9.4.39-1dsa · jetty9 · debian · bookworm; dsa · jetty9 · debian · 12
9.4.57-1.1~deb12u1· all · bookworm-securityFixed · Fixed:
9.4.39-1dsa · jetty9 · debian · bookworm; dsa · jetty9 · debian · 12
9.4.57-1.1~deb12u1· all · bookworm-securityFixed · Fixed:
9.4.39-1dsa · jetty9 · debian · bookworm; dsa · jetty9 · debian · 12
[Debian 13 (Trixie)]
- [jetty9]Unknown
Details (4)
9.4.57-1.1~deb13u1· all · trixieFixed · Fixed:
9.4.39-1dsa · jetty9 · debian · 13
9.4.57-1.1~deb13u1· all · trixieFixed · Fixed:
9.4.39-1dsa · jetty9 · debian · 13
9.4.57-1.1~deb13u1· all · trixie-securityFixed · Fixed:
9.4.39-1dsa · jetty9 · debian · 13
9.4.57-1.1~deb13u1· all · trixie-securityFixed · Fixed:
9.4.39-1dsa · jetty9 · debian · 13
- [libjetty9-extra-java]Unknown
Source package: [jetty9]
Details (4)
9.4.57-1.1~deb13u1· all · trixieFixed · Fixed:
9.4.39-1dsa · jetty9 · debian · 13
9.4.57-1.1~deb13u1· all · trixieFixed · Fixed:
9.4.39-1dsa · jetty9 · debian · 13
9.4.57-1.1~deb13u1· all · trixie-securityFixed · Fixed:
9.4.39-1dsa · jetty9 · debian · 13
9.4.57-1.1~deb13u1· all · trixie-securityFixed · Fixed:
9.4.39-1dsa · jetty9 · debian · 13
- [libjetty9-java]Unknown
Source package: [jetty9]
Details (4)
9.4.57-1.1~deb13u1· all · trixieFixed · Fixed:
9.4.39-1dsa · jetty9 · debian · 13
9.4.57-1.1~deb13u1· all · trixieFixed · Fixed:
9.4.39-1dsa · jetty9 · debian · 13
9.4.57-1.1~deb13u1· all · trixie-securityFixed · Fixed:
9.4.39-1dsa · jetty9 · debian · 13
9.4.57-1.1~deb13u1· all · trixie-securityFixed · Fixed:
9.4.39-1dsa · jetty9 · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2021_2005-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2021-28164]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2021-28164]
- [https://security-tracker.debian.org/tracker/CVE-2021-28164]
- [https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-28164.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2021/wid-sec-w-2022-1365.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]