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High 2 vendors · 2 advisories

CVE-2026-75140: DoS (Denial of Service) org.jsoup:jsoup Dependency in Bamboo Data Center

CVE-2026-75140 key facts

CISA KEV
Not listed (catalogue checked )
Highest advisory rating
High
CVSS base score
7.5 (Atlassian), 7.5 (Red Hat)
CVSS vector
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H (Red Hat)
Weakness
CWE-1050
Fixed releases
  • Atlassian: Bamboo Data Center and Server: 12.1.12 (LTS) recommended Data Center Only, Bamboo Data Center and Server: 10.2.24 (LTS) Data Center Only, Bitbucket Data Center and Server: 10.5.1 Data Center Only, Bitbucket Data Center and Server: 10.2.8 (LTS) recommended Data Center Only, Bitbucket Data Center and Server: 9.4.26 (LTS) Data Center Only, Crowd Data Center and Server: 7.2.4 recommended Data Center Only and 4 more in the advisory
  • Red Hat: 1.23.2, jsoup, ocp-tools-4/jenkins-rhel8:1792044326, ocp-tools-4/jenkins-rhel8:1792044327, ocp-tools-4/jenkins-rhel8:1792044382, ocp-tools-4/jenkins-rhel8:1792044386 and 20 more in the advisory
Vendor advisories
2 from Atlassian, Red Hat
Listed by VulniPulse
Record changed

Ratings, versions and fixes are quoted from the vendor advisories that cover only CVE-2026-75140; each belongs to its advisory, not to every product listed. How records are collected and checked.

How do I fix CVE-2026-75140?

Upgrade to a fixed release named by the vendor:

  • Atlassian: Bamboo Data Center and Server: 12.1.12 (LTS) recommended Data Center Only, Bamboo Data Center and Server: 10.2.24 (LTS) Data Center Only, Bitbucket Data Center and Server: 10.5.1 Data Center Only, Bitbucket Data Center and Server: 10.2.8 (LTS) recommended Data Center Only, Bitbucket Data Center and Server: 9.4.26 (LTS) Data Center Only, Crowd Data Center and Server: 7.2.4 recommended Data Center Only
  • Red Hat: 1.23.2, jsoup, ocp-tools-4/jenkins-rhel8:1792044326, ocp-tools-4/jenkins-rhel8:1792044327, ocp-tools-4/jenkins-rhel8:1792044382, ocp-tools-4/jenkins-rhel8:1792044386
  • Upgrade to a fixed version listed by Atlassian: Bamboo Data Center and Server: 12.1.12 (LTS) recommended Data Center Only; Bamboo Data Center and Server: 10.2.24 (LTS) Data Center Only; Bitbucket Data Center and Server: 10.5.1 Data Center Only; Bitbucket Data Center and Server: 10.2.8 (LTS) recommended Data Center Only. (Atlassian)
  • Validate and limit the nesting depth of XML documents before passing them to jsoup for parsing. Applications should implement input size limits and consider using iterative XML parsers for untrusted input. Where possible, restrict the sources of XML input to trusted origins only. (Red Hat)

Vendor advisories for CVE-2026-75140

Atlassian

1 advisory
  • Advisory severityHigh7.5

    High [CVE-2026-75140] DoS (Denial of Service) org.jsoup:jsoup Dependency in Bamboo Data Center

    CVE-2026-75140Source published

    DoS (Denial of Service) org.jsoup:jsoup Dependency in Bamboo Data Center. Affected: Bamboo Data Center and Server, Bitbucket Data Center and Server, Crowd Data Center and Server, Jira Data Center and Server, Jira Service Management Data Center and Server. Listed in Atlassian's Security Bulletin of October 20 2026.

    Affected products in this advisory
    • Bamboo Data Center and Server
    • Bitbucket Data Center and Server
    • Crowd Data Center and Server
    • Jira Data Center and Server

    1 more entries in the full advisory.

    Source-reported affected versions
    • Bamboo Data Center and Server: 12.1.0 to 12.1.11 (LTS)
    • Bamboo Data Center and Server: 12.0.0 to 12.0.2
    • Bamboo Data Center and Server: 11.0.0 to 11.0.8
    • Bamboo Data Center and Server: 10.2.0 to 10.2.23 (LTS)

    12 more entries in the full advisory.

    Source-reported fixed versions
    • Bamboo Data Center and Server: 12.1.12 (LTS) recommended Data Center Only
    • Bamboo Data Center and Server: 10.2.24 (LTS) Data Center Only
    • Bitbucket Data Center and Server: 10.5.1 Data Center Only
    • Bitbucket Data Center and Server: 10.2.8 (LTS) recommended Data Center Only

    6 more entries in the full advisory.

    Mitigation guidance
    • Upgrade to a fixed version listed by Atlassian: Bamboo Data Center and Server: 12.1.12 (LTS) recommended Data Center Only; Bamboo Data Center and Server: 10.2.24 (LTS) Data Center Only; Bitbucket Data Center and Server: 10.5.1 Data Center Only; Bitbucket Data Center and Server: 10.2.8 (LTS) recommended Data Center Only.
    Full advisory and evidenceOpen source bulletin

Red Hat

1 advisory
  • Advisory severityHigh7.5

    High [CVE-2026-75140] Denial of Service via deeply nested XML documents

    CVE-2026-75140Source published Source updated

    jsoup through 1.23.2, fixed in commit 862ba2f, contains an uncontrolled resource consumption vulnerability in XmlTreeBuilder that allows remote attackers to exhaust JVM heap memory by supplying a deeply nested XML document with uniquely-namespaced elements. The builder copies the entire inherited namespace map on every start element, causing quadratic time and memory complexity, which attackers can exploit to trigger an OutOfMemoryError and terminate the application. A flaw was found in jsoup. Successful exploitation could exhaust JVM heap memory, resulting in an OutOfMemoryError and terminating the application, effectively causing a Denial of Service (DoS). Parsing deeply nested XML documents can cause a denial of service via excessive stack consumption, leading to a StackOverflowError.…

    Affected products in this advisory
    • Red Hat build of Quarkus 3.27.5.SP2
    • Red Hat build of Quarkus 3.33.3.SP2
    • OpenShift Developer Tools and Services 4.12
    • OpenShift Developer Tools and Services 4.13

    19 more entries in the full advisory.

    Source-reported affected versions
    Affected-version details not available in this record.
    Source-reported fixed versions
    • 1.23.2
    • jsoup
    • ocp-tools-4/jenkins-rhel8:1792044326
    • ocp-tools-4/jenkins-rhel8:1792044327

    22 more entries in the full advisory.

    Mitigation guidance
    • Validate and limit the nesting depth of XML documents before passing them to jsoup for parsing. Applications should implement input size limits and consider using iterative XML parsers for untrusted input. Where possible, restrict the sources of XML input to trusted origins only.
    Full advisory and evidenceOpen source bulletin

References

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