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MEDIUM

CVE-2021-34429

CVSS v3

5.3

MEDIUM

EPSS Score

99.3 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • org.eclipse.jetty:jetty-webappMavenfrom 11.0.1 · fixed in 11.0.6

Vendor advisories

  • CVE-2021-34429 Red Hat Product Security2 products fixed · 53 known affected

    jetty: crafted URIs allow bypassing security constraints

    jetty-annotations as a component of Red Hat Enterprise Linux 7 · jetty-ant as a component of Red Hat Enterprise Linux 7 · jetty-client as a component of Red Hat Enterprise Linux 7

  • RHSA-2022:0138 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat AMQ Streams 2.0.0 release and security update

  • RHSA-2021:3700 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat AMQ Broker 7.9.0 release and security update

Full record on NVD

Description

For Eclipse Jetty versions 9.4.37-9.4.42, 10.0.1-10.0.5 & 11.0.1-11.0.5, URIs can be crafted using some encoded characters to access the content of the WEB-INF directory and/or bypass some security constraints. This is a variation of the vulnerability reported in CVE-2021-28164/GHSA-v7ff-8wcx-gmc5.

Technical details

Published
2021-07-15
Exploit-DB
EDB-50478

Frequently asked questions

What is CVE-2021-34429?

For Eclipse Jetty versions 9.4.37-9.4.42, 10.0.1-10.0.5 & 11.0.1-11.0.5, URIs can be crafted using some encoded characters to access the content of the WEB-INF directory and/or bypass some security constraints. This is a variation of the vulnerability reported in CVE-2021-28164/GHSA-v7ff-8wcx-gmc5.

Is CVE-2021-34429 actively exploited?

Active exploitation of CVE-2021-34429 has not been confirmed. Its EPSS score was 99.3% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-34429?

CVE-2021-34429 has a CVSS v3 base score of 5.3 (MEDIUM severity).

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