CVE-2026-64607

mediumpriority · track · 0EPSS 0.005 · 40 %ileDEEUFRNLUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.46% (40th) EPSS

CVSS 5.3 · medium

Is it mine?

33 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · cert_bund · ncsc_nl

EPSS · scored 2026-10-27

HttpClient based on the classic i/o model fails to correctly release the underlying connection back to the connection manager if it encounters an invalid or unsupported `Content-Encoding` header value in the response message. Please note this defect does not affect HttpClient based on the async i/o model. This issue affects Apache HttpComponents Client: from 5.0-alpha1 through 5.6.2.

cvss

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

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.9–7.5

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · ENISA EU

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondaryexploitability 3.9 · impact 1.4

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · OSV

v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:Usecondary · CVSS-BT (t0sche)

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · NCSC-NL NL

ssvc

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

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-772USCWE-772USCWE-772US

affected products (33)

Products and version ranges known to be affected.

IBM QRadar SIEMall versionscert_bundDEcpe:/a:ibm:qradar_siem:-
IBM Spectrum Scaleall versionscert_bundDEcpe:/a:ibm:spectrum_scale:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
RealObjects PDFreactor< 12.7.1cert_bundDE
Apache Software Foundation Apache HttpComponents Client≤ 5.0-alpha ≤5.6.2enisa_euvdEU
Oracle Access Manager≤ vers:unknown/*ncsc_nlNL
Oracle Business Process Management Suite≤ vers:unknown/*ncsc_nlNL
Oracle Coherence≤ vers:unknown/*ncsc_nlNL
Oracle Data Integrator≤ vers:unknown/*ncsc_nlNL
Oracle Fusion Middleware≤ vers:unknown/*ncsc_nlNL
Oracle Fusion Middleware Common Libraries And Tools≤ vers:unknown/*ncsc_nlNL
Oracle Fusion Middleware Control≤ vers:unknown/*ncsc_nlNL
Oracle Fusion Middleware MapViewer≤ vers:unknown/*ncsc_nlNL
Oracle Global Lifecycle Management NextGen OUI Framework≤ vers:unknown/*ncsc_nlNL
Oracle HTTP Server≤ vers:unknown/*ncsc_nlNL
Oracle Helidon≤ vers:unknown/*ncsc_nlNL
Oracle Identity Manager≤ vers:unknown/*ncsc_nlNL
Oracle Identity Manager (Application)≤ vers:unknown/*ncsc_nlNL
Oracle Identity Manager Connector≤ vers:unknown/*ncsc_nlNL
Oracle JDeveloper≤ vers:unknown/*ncsc_nlNL

showing 20 of 33

advisories (8)

Vendor and ecosystem advisories describing this.

NCSC-2026-0448Kwetsbaarheden verholpen in Oracle Fusion MiddlewareNL2026-10-22csaf · ncsc_nlNL
Oracle heeft meerdere kwetsbaarheden verholpen in diverse producten, waaronder Oracle SOA Suite, Oracle WebLogic Server, Oracle Data Integrator, Oracle Identity Manager, Oracle Access Manager, Oracle WebCenter Content, Oracle Fusion Middleware (inclusief Helidon) en Oracle HTTP Server.
WID-SEC-W-2026-2615Apache HttpComponents: Schwachstelle ermöglicht Denial of ServiceDeutsch2026-08-02csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Apache HttpComponents ausnutzen, um einen Denial of Service Angriff durchzuführen.
WID-SEC-W-2026-2867RealObjects PDFreactor: Mehrere Schwachstellen ermöglichen nicht spezifizierten AngriffDeutsch2026-08-16csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in RealObjects PDFreactor ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.
WID-SEC-W-2026-3379Camunda: Schwachstelle ermöglicht Denial of ServiceDeutsch2026-09-15csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Camunda ausnutzen, um einen Denial of Service Angriff durchzuführen.
WID-SEC-W-2026-4062Oracle Utilities Applications: Mehrere SchwachstellenDeutsch2026-10-20csaf · cert_bundDE
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle Utilities Applications ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.
WID-SEC-W-2026-4078Oracle Fusion Middleware: Mehrere SchwachstellenDeutsch2026-10-20csaf · cert_bundDE
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle Fusion Middleware ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.
GHSA-hjcp-jmpx-g3qmApache HttpComponents Client: Connection Leak on Content-Encoding Decode Error Leads to Pool Exhaustion DoS2026-07-31ghsa · osvUS
HttpClient based on the classic i/o model fails to correctly release the underlying connection back to the connection manager if it encounters an invalid or unsupported `Content-Encoding` header value in the response message. Please note this defect does not affect HttpClient based on the async i/o model. This issue affects Apache HttpComponents Client: from 5.0-alpha1 through 5.6.2.
CERTFR-2026-AVI-1385Multiples vulnérabilités dans les produits VMwareFrançais2026-10-26vendor · certfrFR

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund ncsc_nl osv certfr NVD CVE.org MITRE

published 2026-07-31modified 2026-10-23

references (4)

External citations — patches, advisories, analysis.

scry

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