CVE-2026-93488

highpriority · track · 30EPSS 0.008 · 56 %ileDEFRUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.80% (56th) EPSS

CVSS 7.5 · high

Is it mine?

12 products

Check your exposure

Who says so?

2 sources

cert_bund · certfr

EPSS · scored 2026-10-22

A flaw was found in Netty. SpdySessionHandler accepts an unlimited number of concurrent remote-initiated streams because localConcurrentStreams defaults to Integer.MAX_VALUE and the handler provides no API to change it. A remote peer can open a SPDY connection and send a large number of SYN_STREAM frames with FLAG_FIN=0, causing unbounded heap and direct memory allocation that can lead to JVM OutOfMemoryError and a denial of service.

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:Hprimary · secalert@redhat.com USexploitability 3.9 · impact 3.6

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)

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-770US

affected products (12)

Products and version ranges known to be affected.

Atlassian Bamboo≤ LTS <10.2.24cert_bundDE
Atlassian Bamboo≤ LTS <12.1.12cert_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
Atlassian Jira≤ LTS <11.3.12cert_bundDE

advisories (3)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-3477Netty: Mehrere SchwachstellenDeutsch2026-09-20csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Netty ausnutzen, um Sicherheitsvorkehrungen zu umgehen, Daten zu manipulieren, vertrauliche Informationen offenzulegen oder einen Denial-of-Service-Zustand 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.
CERTFR-2026-AVI-1336Multiples vulnérabilités dans les produits IBMFrançais2026-10-16vendor · certfrFR

sources

Which sources assert this record, and when.

cert_bund certfr NVD CVE.org MITRE

published 2026-09-18modified 2026-10-15

references (8) nvd

External citations — patches, advisories, analysis.

scry

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