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NVD / CVE Program· CNA GitHub_M

CVE-2023-26049: Cookie parsing of quoted values can exfiltrate values from other cookies in Eclipse Jetty

Noroxi assessment

Priority: Monitor (action score 21/100)

  • Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
  • Probability of exploitation in the next 30 days: 1.3% (FIRST EPSS); higher than 70.5% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: jetty9 (Debian:10) 9.4.16-0+deb10u3; jetty9 (Debian:11) 9.4.39-3+deb11u2; jetty9 (Debian:12) 9.4.50-4+deb12u1.
  • Severity is disputed: the assigning authority (CNA) scores it 2.4, NVD 5.3.

Low priority for now. Upgrade to jetty9 (Debian:10) 9.4.16-0+deb10u3; jetty9 (Debian:11) 9.4.39-3+deb11u2; jetty9 (Debian:12) 9.4.50-4+deb12u1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Jetty is a java based web server and servlet engine. Nonstandard cookie parsing in Jetty may allow an attacker to smuggle cookies within other cookies, or otherwise perform unintended behavior by tampering with the cookie parsing mechanism. If Jetty sees a cookie VALUE that starts with `"` (double quote), it will continue to read the cookie string until it sees a closing quote -- even if a semicolon is encountered. So, a cookie header such as: `DISPLAY_LANGUAGE="b; JSESSIONID=1337; c=d"` will be parsed as one cookie, with the name DISPLAY_LANGUAGE and a value of b; JSESSIONID=1337; c=d instead of 3 separate cookies. This has security implications because if, say, JSESSIONID is an HttpOnly cookie, and the DISPLAY_LANGUAGE cookie value is rendered on the page, an attacker can smuggle the JSESSIONID cookie into the DISPLAY_LANGUAGE cookie and thereby exfiltrate it. This is significant when an intermediary is enacting some policy based on cookies, so a smuggled cookie can bypass that policy yet still be seen by the Jetty server or its logging system. This issue has been addressed in versions 9.4.51, 10.0.14, 11.0.14, and 12.0.0.beta0 and users are advised to upgrade. There are no known workarounds for this issue.

MediumCVSS 5.3 · v3.1—Proof of concept Fix available
Published
Apr 18, 2023
Updated
Jun 17, 2026
EPSS
1.3% · 70th percentile

Report tools

JSON

Action score

21

Monitor

Low priority for now.

CVSS
21 / 40 · 5.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.3%

CNA vs NVD score

NVD
5.3
CNA · GitHub_M
2.4
2.9 point gap

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • Proof of concept exists, no weaponized module
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2023-26049

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
eclipsejetty
debiandebian linux
netappactive iq unified manager
netappe-series santricity os controller
netappe-series santricity unified manager
netappe-series santricity web services

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • debian debian linux10.0
  • debian debian linux11.0
  • debian debian linux12.0
  • eclipse jettybefore 9.4.51
  • eclipse jetty10.0.0 and later · before 10.0.14
  • eclipse jetty11.0.0 and later · before 11.0.14
  • eclipse jetty12.0.0
  • netapp active iq unified managerall versions
  • netapp e-series santricity os controller11.0 and later
  • netapp e-series santricity unified managerall versions
  • netapp e-series santricity web servicesall versions

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.

  • eclipse jetty.project

    • < 9.4.51, >= 10.0.0, < 10.0.14, >= 11.0.0, < 11.0.14, >= 12.0.0.alpha0, < 12.0.0.beta0affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:10jetty9before 9.4.16-0+deb10u39.4.16-0+deb10u3
Debian:11jetty9before 9.4.39-3+deb11u29.4.39-3+deb11u2
Debian:12jetty9before 9.4.50-4+deb12u19.4.50-4+deb12u1
Debian:13jetty9before 9.4.52-19.4.52-1
Mavenorg.eclipse.jetty:jetty-serverfrom 10.0.0 · before 10.0.1410.0.14
Mavenorg.eclipse.jetty:jetty-serverfrom 11.0.0 · before 11.0.1411.0.14
Mavenorg.eclipse.jetty:jetty-serverfrom 12.0.0alpha0 · before 12.0.0.beta012.0.0.beta0
Mavenorg.eclipse.jetty:jetty-serverbefore 9.4.51.v202302179.4.51.v20230217
openSUSE:Leap 15.4jetty-minimalbefore 9.4.51-150200.3.19.29.4.51-150200.3.19.2
Red Hat:jboss_enterprise_application_platform:7.4::el7eap7-activemq-artemisbefore 0:2.16.0-17.redhat_00051.1.el7eap0:2.16.0-17.redhat_00051.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7eap7-activemq-artemis-clibefore 0:2.16.0-17.redhat_00051.1.el7eap0:2.16.0-17.redhat_00051.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7eap7-activemq-artemis-commonsbefore 0:2.16.0-17.redhat_00051.1.el7eap0:2.16.0-17.redhat_00051.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7eap7-activemq-artemis-core-clientbefore 0:2.16.0-17.redhat_00051.1.el7eap0:2.16.0-17.redhat_00051.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7eap7-activemq-artemis-dtobefore 0:2.16.0-17.redhat_00051.1.el7eap0:2.16.0-17.redhat_00051.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7eap7-activemq-artemis-hornetq-protocolbefore 0:2.16.0-17.redhat_00051.1.el7eap0:2.16.0-17.redhat_00051.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7eap7-activemq-artemis-hqclient-protocolbefore 0:2.16.0-17.redhat_00051.1.el7eap0:2.16.0-17.redhat_00051.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7eap7-activemq-artemis-jdbc-storebefore 0:2.16.0-17.redhat_00051.1.el7eap0:2.16.0-17.redhat_00051.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7eap7-activemq-artemis-jms-clientbefore 0:2.16.0-17.redhat_00051.1.el7eap0:2.16.0-17.redhat_00051.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7eap7-activemq-artemis-jms-serverbefore 0:2.16.0-17.redhat_00051.1.el7eap0:2.16.0-17.redhat_00051.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7eap7-activemq-artemis-journalbefore 0:2.16.0-17.redhat_00051.1.el7eap0:2.16.0-17.redhat_00051.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7eap7-activemq-artemis-rabefore 0:2.16.0-17.redhat_00051.1.el7eap0:2.16.0-17.redhat_00051.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7eap7-activemq-artemis-selectorbefore 0:2.16.0-17.redhat_00051.1.el7eap0:2.16.0-17.redhat_00051.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7eap7-activemq-artemis-serverbefore 0:2.16.0-17.redhat_00051.1.el7eap0:2.16.0-17.redhat_00051.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7eap7-activemq-artemis-service-extensionsbefore 0:2.16.0-17.redhat_00051.1.el7eap0:2.16.0-17.redhat_00051.1.el7eap

+96

Same product

eclipse: all records

Other highest-scoring records for the same primary product.

  • CVE-2021-34429For 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 con
    60This week
  • CVE-2021-28164In 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 segm
    60This week
  • CVE-2015-2080The exception handling code in Eclipse Jetty before 9.2.9.v20150224 allows remote attackers to obtain sensitive information from process mem
    53Plan

Published before and after this one in the same product

  • ← EarlierCVE-2022-2191Jul 7, 2022 · In Eclipse Jetty versions 10.0.0 thru 10.0.9, and 11.0.0 thru 11.0.9 versions, SslConnection does not release ByteBuffers from configured By
    31Monitor
  • ← EarlierCVE-2023-26048Apr 18, 2023 · OutOfMemoryError for large multipart without filename in Eclipse Jetty
    22Monitor
  • Later →CVE-2023-36479Sep 15, 2023 · Jetty vulnerable to errant command quoting in CGI Servlet
    12Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:jetty99.4.50-4+deb12u1 · Debian:12Package registry (OSV)
Maven:org.eclipse.jetty:jetty-server10.0.14Package registry (OSV)
Maven:org.eclipse.jetty:jetty-server11.0.14Package registry (OSV)
Maven:org.eclipse.jetty:jetty-server12.0.0.beta0Package registry (OSV)
Maven:org.eclipse.jetty:jetty-server9.4.51.v20230217Package registry (OSV)
opensuse:jetty-minimal9.4.51-150200.3.19.2 · openSUSE:Leap 15.4Package registry (OSV)
red hat:eap7-activemq-artemis0:2.16.0-17.redhat_00051.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7Package registry (OSV)
red hat:eap7-activemq-artemis-cli0:2.16.0-17.redhat_00051.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7Package registry (OSV)
red hat:eap7-activemq-artemis-commons0:2.16.0-17.redhat_00051.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7Package registry (OSV)
red hat:eap7-guava0:32.1.1-2.jre_redhat_00001.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7Package registry (OSV)
red hat:eap7-guava-libraries0:32.1.1-2.jre_redhat_00001.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7Package registry (OSV)
red hat:eap7-jboss-xnio-base0:3.8.11-1.SP1_redhat_00001.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7Package registry (OSV)
red hat:eap7-undertow0:2.2.28-1.SP1_redhat_00001.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7Package registry (OSV)
red hat:eap7-wildfly0:7.4.14-5.GA_redhat_00002.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7Package registry (OSV)
red hat:eap7-wildfly-java-jdk110:7.4.14-5.GA_redhat_00002.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7Package registry (OSV)
red hat:eap7-wildfly-java-jdk80:7.4.14-5.GA_redhat_00002.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7Package registry (OSV)
red hat:eap7-wildfly-javadocs0:7.4.14-5.GA_redhat_00002.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7Package registry (OSV)
red hat:eap7-wildfly-modules0:7.4.14-5.GA_redhat_00002.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7Package registry (OSV)
suse:jetty-minimal9.4.51-150200.3.19.2 · SUSE:Linux Enterprise Module for Development Tools 15 SP4Package registry (OSV)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Proof-of-concept repository on GitHub ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Proof-of-concept repository on GitHubstars:02023-11-01

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. First PoC+196 d
  3. TodayNov 6, 2026+1297 d

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
low · data can be read
Integrity
none
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
Low
Integrity impact
None
Availability impact
None

Weakness class (CWE)

CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor

CVSS vector

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

nvd-primary

Root cause

The extension requests broader permissions than its function needs and sends the data it collects out for purposes beyond its stated function.

The bug in code

The whole CWE-200 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

json
{  "permissions": ["tabs", "<all_urls>"],  "background": { "service_worker": "analytics.js" }}

Fixed

json
{  "permissions": ["activeTab"],  "host_permissions": ["https://yildiz.example/*"]}

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records