CVE-2026-54428

highpriority · track · 0EPSS 0.009 · 59 %ileDEEUFRNLUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.87% (59th) EPSS

CVSS 7.5 · high

Is it mine?

53 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · cert_bund · ncsc_nl

EPSS · scored 2026-10-27

Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache HttpComponents Core (5.4.2 and earlier, 5.5-beta1 and earlier) allows an remote attacker to cause a denial of service through memory exhaustion by sending oversized compressed header blocks before the HTTP/2 SETTINGS acknowledgement causes the configured header list size limit to be applied.

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 · 6.9–7.5

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

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondaryexploitability 3.9 · impact 3.6

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

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/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-400USCWE-400USCWE-770USCWE-770US

affected products (53)

Products and version ranges known to be affected.

Fusion Middlewareall versionscert_bundDEcpe:/a:oracle:fusion_middleware:3.0.0-3.2.21
Fusion Middlewareall versionscert_bundDEcpe:/a:oracle:fusion_middleware:4.0.0-4.5.5
Fusion Middlewareall versionscert_bundDEcpe:/a:oracle:fusion_middleware:27.0.0
Oracle Fusion Middleware 12.2.1.4.0all versionscert_bundDEcpe:/a:oracle:fusion_middleware:12.2.1.4.0
Oracle Fusion Middleware 14.1.1.0.0all versionscert_bundDEcpe:/a:oracle:fusion_middleware:14.1.1.0.0
Oracle Fusion Middleware 14.1.2.0.0all versionscert_bundDEcpe:/a:oracle:fusion_middleware:14.1.2.0.0
Oracle Fusion Middleware 14.1.2.1.0all versionscert_bundDEcpe:/a:oracle:fusion_middleware:14.1.2.1.0
Oracle Fusion Middleware 15.1.1.0.0all versionscert_bundDEcpe:/a:oracle:fusion_middleware:15.1.1.0.0
Oracle Fusion Middleware 8.5.8all versionscert_bundDEcpe:/a:oracle:fusion_middleware:8.5.8
Atlassian Bamboo≤ LTS <12.1.12cert_bundDE
Atlassian Bamboo≤ LTS <10.2.24cert_bundDE
Atlassian Bitbucket≤ LTS <10.2.8cert_bundDE
Atlassian Bitbucket≤ LTS <9.4.26cert_bundDE
Atlassian Bitbucket< 10.5.1cert_bundDE
Atlassian Confluence≤ LTS <10.2.19cert_bundDE
Atlassian Confluence≤ LTS <9.2.26cert_bundDE
Atlassian Confluence< 11.0.0cert_bundDE
Atlassian Crucible< 4.9.15cert_bundDE
Atlassian Fisheye< 4.9.15cert_bundDE
Atlassian Jira≤ LTS <10.3.26cert_bundDE

showing 20 of 53

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-2026-2172Apache HttpComponents Core: Mehrere Schwachstellen ermöglichen Denial of ServiceDeutsch2026-07-01csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Apache HttpComponents Core ausnutzen, um einen Denial of Service Angriff durchzuführen.
WID-SEC-W-2026-3376Atlassian Bamboo, Bitbucket, Confluence, Fisheye/Crucible, Jira Software und Jira Service Management: Mehrere SchwachstellenDeutsch2026-09-15csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Atlassian Bamboo, Bitbucket, Confluence, Fisheye/Crucible, Jira Software und Jira Service Management ausnutzen, um beliebigen Programmcode auszuführen, Sicherheitsmaßnahmen zu umgehen, serverseitige Request-Forgery-Angriffe (SSRF) durchzuführen, Cross-Site-Scripting-Angriffe zu starten, sensible Informationen offenzulegen, Daten zu manipulieren oder Denial-of-Service-Zustände herbeizuführen.
WID-SEC-W-2026-4056Atlassian Produkte (Bamboo, Bitbucket, Confluence, Crucible, Fisheye und Jira): Mehrere SchwachstellenDeutsch2026-10-20csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Atlassian Bamboo, Bitbucket, Confluence, Crucible, Fisheye und Jira ausnutzen, um Daten zu manipulieren, um seine Privilegien zu erhöhen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um einen Cross-Site Scripting Angriff durchzuführen, um Sicherheitsvorkehrungen zu umgehen und um beliebigen Programmcode auszuführen.
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-v3jc-474w-2wm6Apache HttpComponents Core: HPackDecoder Unlimited Header List Size Before SETTINGS ACK2026-07-01ghsa · osvUS
Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache HttpComponents Core (5.4.2 and earlier, 5.5-beta1 and earlier) allows an remote attacker to cause a denial of service through memory exhaustion by sending oversized compressed header blocks before the HTTP/2 SETTINGS acknowledgement causes the configured header list size limit to be applied.
CERTFR-2026-AVI-1349Multiples vulnérabilités dans Oracle Database ServerFrançais2026-10-21vendor · certfrFR
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 2026-07-01modified 2026-10-25

references (5)

External citations — patches, advisories, analysis.

http://www.openwall.com/lists/oss-security/2026/07/01/3 cnnvd
https://lists.apache.org/thread/5zjp8vczvxq19pw2rvhs21q446bhl0sd cnnvd
https://lists.apache.org/thread/5zjp8vczvxq19pw2rvhs21q446bhl0sd enisa_euvd
http://www.openwall.com/lists/oss-security/2026/07/01/3MitigationThird Party Advisorynvd
https://lists.apache.org/thread/5zjp8vczvxq19pw2rvhs21q446bhl0sdMitigationVendor Advisorynvd

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