CVE-2026-59901

highEPSS 0.005 · 38 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.46% (38th) EPSS

CVSS 7.5 · high

Is it mine?

68 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · osv

EPSS · scored 2026-10-18

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.136.Final and 4.2.16.Final, the `Bzip2Decoder` handler in Netty's compression codec pipeline is vulnerable to a denial-of-service attack through a malformed bzip2 stream that permanently captures the event-loop thread in an infinite loop. The vulnerability exists in the run-length encoding (RLE) state machine within [`Bzip2BlockDecompressor.read()`]. This issue has been fixed in versions 4.1.136.Final and 4.2.16.Final.

cvss

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

8.7

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.6–8.7

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

v4.08.7highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:Nsecondary · ENISA EU

v4.08.7highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · security-advisories@github.com

v4.06.6mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)

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-835USCWE-835US

affected products (68)

Products and version ranges known to be affected.

IBM App Connect Enterprise for Manufactoringall versionscert_bundDEcpe:/a:ibm:app_connect_enterprise:for_manufactoring
IBM DB2all versionscert_bundDEcpe:/a:ibm:db2:-
IBM SPSS Analytic Serverall versionscert_bundDEcpe:/a:ibm:spss:analytic_server
IBM SPSS Modeler 19.0.0.0all versionscert_bundDEcpe:/a:ibm:spss:modeler_19.0.0.0
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
Atlassian Atlassian Bamboo Data Center LTS <10.2.22≤ Data Center LTS <10.2.22cert_bundDE
Atlassian Atlassian Bamboo Data Center LTS <10.2.23≤ Data Center LTS <10.2.23cert_bundDE
Atlassian Atlassian Bamboo Data Center LTS <12.1.10≤ Data Center LTS <12.1.10cert_bundDE
Atlassian Atlassian Bamboo Data Center LTS <12.1.11≤ Data Center LTS <12.1.11cert_bundDE
Atlassian Atlassian Bitbucket Data Center <10.4.2≤ Data Center <10.4.2cert_bundDE
Atlassian Atlassian Bitbucket Data Center <10.4.3≤ Data Center <10.4.3cert_bundDE
Atlassian Atlassian Bitbucket Data Center LTS <10.2.6≤ Data Center LTS <10.2.6cert_bundDE
Atlassian Atlassian Bitbucket Data Center LTS <10.2.7≤ Data Center LTS <10.2.7cert_bundDE
Atlassian Atlassian Bitbucket Data Center LTS <9.4.23≤ Data Center LTS <9.4.23cert_bundDE
Atlassian Atlassian Bitbucket Data Center LTS <9.4.24≤ Data Center LTS <9.4.24cert_bundDE
Atlassian Atlassian Confluence Data Center LTS <10.2.15≤ Data Center LTS <10.2.15cert_bundDE
Atlassian Atlassian Confluence Data Center LTS <10.2.17≤ Data Center LTS <10.2.17cert_bundDE
Atlassian Atlassian Confluence Data Center LTS <10.2.18≤ Data Center LTS <10.2.18cert_bundDE
Atlassian Atlassian Confluence Data Center LTS <9.2.23≤ Data Center LTS <9.2.23cert_bundDE

showing 20 of 68

advisories (4)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-2356Netty: Mehrere SchwachstellenDeutsch2026-07-14csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Netty ausnutzen, um Sicherheitsprüfungen zu umgehen, Anfragen oder Header zu manipulieren, Zertifikatsprüfungen zu unterlaufen sowie einen Denial of Service zu verursachen.
WID-SEC-W-2026-2923Atlassian Produkte (Bamboo, Bitbucket, Confluence, Crucible, Fisheye, und Jira): Mehrere SchwachstellenDeutsch2026-08-18csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Atlassian Bamboo, Atlassian Bitbucket, Atlassian Confluence, Atlassian Crucible, Atlassian Fisheye und Atlassian Jira ausnutzen, um beliebigen Programmcode auszuführen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Dateien zu manipulieren, um einen Cross-Site Scripting Angriff durchzuführen, um einen SQL-Injection Angriff durchzuführen, und um Sicherheitsvorkehrungen zu umgehen.
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.
GHSA-558v-64gr-wgg4Netty: [Bzip2Decoder] Infinite Loop in RLE State Machine Leads to Event-Loop Thread Hang2026-07-22ghsa · osvUS
The `Bzip2Decoder` handler in Netty's compression codec pipeline is vulnerable to a denial-of-service attack through a malformed bzip2 stream that permanently captures the event-loop thread in an infinite loop. The vulnerability exists in the run-length encoding (RLE) state machine within [`Bzip2BlockDecompressor.read()`]

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund osv NVD CVE.org MITRE

published 2026-07-29modified 2026-08-06

references (3)

External citations — patches, advisories, analysis.

scry

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