CVE-2023-4639

highpriority · track · 0EPSS 0.011 · 65 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.09% (65th) EPSS

CVSS 7.4 · high

Is it mine?

17 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

A flaw was found in Undertow, which incorrectly parses cookies with certain value-delimiting characters in incoming requests. This issue could allow an attacker to construct a cookie value to exfiltrate HttpOnly cookie values or spoof arbitrary additional cookie values, leading to unauthorized data access or modification. The main threat from this flaw impacts data confidentiality and integrity.

cvss

Technical severity, 0–10. One row per scoring source.

7.4

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.8–7.4

v3.17.4highAV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Nsecondary · FSTEC (BDU) RU

v3.17.4highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Nsecondary · ENISA EU

v3.17.4highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Nsecondary · secalert@redhat.com USexploitability 2.2 · impact 5.2

v3.17.4highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Nsecondary · OSV

v3.16.8mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-444USCWE-444USCWE-444US

affected products (17)

Products and version ranges known to be affected.

Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
Red Hat JBoss Enterprise Application Platform <8.0all versionscert_bundDE
Red Hat JBoss Enterprise Application Platform< 8.0cert_bundDE
Red Hat Migration Toolkit for Runtimes 1 on RHEL 8< 1.2-14enisa_euvdEU
Red Hat Migration Toolkit for Runtimes 1 on RHEL 8< 1.2-15enisa_euvdEU
Red Hat Migration Toolkit for Runtimes 1 on RHEL 8< 1.2-16enisa_euvdEU
Red Hat Migration Toolkit for Runtimes 1 on RHEL 8< 1.2-23enisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 8< 0:2.2.30-1.SP1_redhat_00001.1.el8eapenisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 9< 0:2.2.30-1.SP1_redhat_00001.1.el9eapenisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 7.4 on RHEL 7< 0:2.2.30-1.SP1_redhat_00001.1.el7eapenisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 8< 0:2.3.11-1.SP1_redhat_00001.1.el8eapenisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 9< 0:2.3.11-1.SP1_redhat_00001.1.el9eapenisa_euvdEU
Red Hat Inc. Migration Toolkit for Applications≤ 6fstec_bduRU
Red Hat Inc. Migration Toolkit for Runtimesall versionsfstec_bduRU
Red Hat Inc. undertowall versionsfstec_bduRU
Maven io.undertow:undertow-core< 2.2.30.FinalosvUSpkg:maven/io.undertow/undertow-core
Maven io.undertow:undertow-core2.3.0.Alpha1 → 2.3.11.FinalosvUSpkg:maven/io.undertow/undertow-core

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2024-1084Red Hat JBoss Enterprise Application Platform: Mehrere SchwachstellenDeutsch2024-05-09csaf · cert_bundDE
Ein entfernter anonymer Angreifer kann mehrere Schwachstellen in Red Hat JBoss Enterprise Application Platform ausnutzen, um einen Denial-of-Service-Zustand zu verursachen, Dateien zu manipulieren oder vertrauliche Informationen offenzulegen.
GHSA-3jrv-jgp8-45v3Undertow incorrectly parses cookies2024-11-17ghsa · osvUS
A flaw was found in Undertow, which incorrectly parses cookies with certain value-delimiting characters in incoming requests. This issue could allow an attacker to construct a cookie value to exfiltrate HttpOnly cookie values or spoof arbitrary additional cookie values, leading to unauthorized data access or modification. The main threat from this flaw impacts data confidentiality and integrity.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund osv NVD CVE.org MITRE

published 2024-11-17modified 2026-06-17

references (22)

External citations — patches, advisories, analysis.

scry

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