CVE-2021-34428

For Eclipse Jetty versions <= 9.4.40, <= 10.0.2, <= 11.0.2, if an exception is thrown from the SessionListener#sessionDestroyed() method, then the session ID is not invalidated in the session ID manager. On deployments with clustered sessions and multiple contexts this can result in a session not being invalidated. This can result in an application used on a shared computer being left logged in.

Published: 2021-06-22 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-34428 is rated Low Risk (32.2/100): CVSS Low severity, with medium exploitation likelihood (EPSS 0.96%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2021-34428

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.27% 0.96% +0.69%
2 2026-04-21 0.67% 0.27% -0.40%
3 2025-12-17 — 0.67% —

Full EPSS history (40 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-34428

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
2.9 3.1 LOW
CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N Click to expand
Attack vector (AV:P)
Hands-on access—USB, keyboard, opening the case—not something you do purely over the wire.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 0.4 2.5 [email protected]
3.5 3.1 LOW
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N Click to expand
Attack vector (AV:P)
Hands-on access—USB, keyboard, opening the case—not something you do purely over the wire.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 0.9 2.5 [email protected]
3.6 2.0 LOW
AV:L/AC:L/Au:N/C:P/I:P/A:N Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 3.9 4.9 [email protected]

Weakness enumeration for CVE-2021-34428

GitHub Security Advisory for CVE-2021-34428

GHSA-m6cp-vxjx-65j6 · Severity: low · Ecosystem: maven — SessionListener can prevent a session from being invalidated breaking logout

OS Trackers for CVE-2021-34428

vendor priority summary link
debian not yet assigned CVE-2021-34428 not yet assigned priority: Debian including 1 source packages (jetty9), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2021-34428
redhat low — https://access.redhat.com/security/cve/CVE-2021-34428
suse medium CVE-2021-34428 severity moderate: SUSE including 8 source package names (jetty-http, jetty-io, …), 8 product×package rows across 1 product lines (SUSE Linux Enterprise Module for Development Tools 15 SP2): Known Not Affected 8. https://www.suse.com/security/cve/CVE-2021-34428/
ubuntu low CVE-2021-34428 low priority: Ubuntu including 3 source packages (jetty, jetty8, jetty9), 48 status rows across 16 suites (bionic, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 27, ignored 6, needs-triage 6, not-affected 5, needed 3, released 1. https://ubuntu.com/security/CVE-2021-34428

Affected software / configurations for CVE-2021-34428

Vendor Product Version Raw CPE
eclipse jetty <= 9.4.40 cpe:2.3:a:eclipse:jetty:*:*:*:*:*:*:*:*
eclipse jetty >= 10.0.0, <= 10.0.2 cpe:2.3:a:eclipse:jetty:*:*:*:*:*:*:*:*
eclipse jetty >= 11.0.0, <= 11.0.2 cpe:2.3:a:eclipse:jetty:*:*:*:*:*:*:*:*
debian debian_linux 10.0 cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
netapp active_iq_unified_manager — cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:linux:*:*
netapp active_iq_unified_manager — cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:windows:*:*
netapp e-series_santricity_os_controller >= 11.0, <= 11.70.1 cpe:2.3:a:netapp:e-series_santricity_os_controller:*:*:*:*:*:*:*:*
netapp e-series_santricity_web_services — cpe:2.3:a:netapp:e-series_santricity_web_services:-:*:*:*:*:web_services_proxy:*:*
netapp element_plug-in_for_vcenter_server — cpe:2.3:a:netapp:element_plug-in_for_vcenter_server:-:*:*:*:*:*:*:*
netapp santricity_cloud_connector — cpe:2.3:a:netapp:santricity_cloud_connector:-:*:*:*:*:*:*:*
netapp snap_creator_framework — cpe:2.3:a:netapp:snap_creator_framework:-:*:*:*:*:*:*:*
netapp snapmanager — cpe:2.3:a:netapp:snapmanager:-:*:*:*:*:sap:*:*
oracle autovue_for_agile_product_lifecycle_management 21.0.2 cpe:2.3:a:oracle:autovue_for_agile_product_lifecycle_management:21.0.2:*:*:*:*:*:*:*
oracle communications_element_manager 8.2.2 cpe:2.3:a:oracle:communications_element_manager:8.2.2:*:*:*:*:*:*:*
oracle communications_services_gatekeeper 7.0 cpe:2.3:a:oracle:communications_services_gatekeeper:7.0:*:*:*:*:*:*:*
oracle communications_session_report_manager >= 8.0.0.0, <= 8.2.4.0 cpe:2.3:a:oracle:communications_session_report_manager:*:*:*:*:*:*:*:*
oracle communications_session_route_manager >= 8.0.0, <= 8.2.4.0 cpe:2.3:a:oracle:communications_session_route_manager:*:*:*:*:*:*:*:*
oracle rest_data_services < 21.3 cpe:2.3:a:oracle:rest_data_services:*:*:*:*:-:*:*:*
oracle siebel_core_-_automation <= 21.9 cpe:2.3:a:oracle:siebel_core_-_automation:*:*:*:*:*:*:*:*

References for CVE-2021-34428

URL Tags
https://github.com/eclipse/jetty.project/security/advisories/GHSA-m6cp-vxjx-65j6 Third Party Advisory
https://lists.apache.org/thread.html/r67c4f90658fde875521c949448c54c98517beecdc7f618f902c620ec%40%3Cissues.zookeeper.apache.org%3E
https://lists.apache.org/thread.html/r8a1a332899a1f92c8118b0895b144b27a78e3f25b9d58a34dd5eb084%40%3Cnotifications.zookeeper.apache.org%3E
https://lists.apache.org/thread.html/rbefa055282d52d6b58d29a79fbb0be65ab0a38d25f00bd29eaf5e6fd%40%3Cnotifications.zookeeper.apache.org%3E
https://lists.apache.org/thread.html/rddbb4f8d5db23265bb63d14ef4b3723b438abc1589f877db11d35450%40%3Cissues.zookeeper.apache.org%3E
https://lists.apache.org/thread.html/ref1c161a1621504e673f9197b49e6efe5a33ce3f0e6d8f1f804fc695%40%3Cjira.kafka.apache.org%3E
https://lists.apache.org/thread.html/rf36f1114e84a3379b20587063686148e2d5a39abc0b8a66ff2a9087a%40%3Cissues.zookeeper.apache.org%3E
https://security.netapp.com/advisory/ntap-20210813-0003/ Third Party Advisory
https://www.debian.org/security/2021/dsa-4949 Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.html Not Applicable Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2022.html Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2021.html Patch Third Party Advisory
cvelogic Threat Intelligence