CLEANSTART-2026-KO31881 malicious GOSUMDB was capable of serving arbitrary module content not contained within the transparency log

🗓️ 10 Sep 2026 01:50:10Reported by GoogleType

osv🔗 osv.dev👁 13 Views

Malicious GOSUMDB in dex package serves arbitrary module content outside transparency log.

Reporter	Title	Published	Views	Family All 1000
IBM Security Bulletins	Security Bulletin: Multiple vulnerabilities affect Data Virtualization on IBM Software Hub (July 2026 - Part 2 of 2)	7 Aug 202601:27	–	ibm
IBM Security Bulletins	Security Bulletin: The following vulnerabilities that can affect IBM Storage Scale Cluster Export Services (CES) S3 are now addressed in 5.2.3.9 or higher and 6.0.1.0 or higher	24 Jul 202615:52	–	ibm
IBM Security Bulletins	Security Bulletin: IBM Financial Transaction Manager is impacted by multiple vulnerabilities in RedHat Proxy for Kubernetes RBAC authorization	13 Oct 202618:23	–	ibm
IBM Security Bulletins	Security Bulletin: IBM Verify Antenna is affected by multiple vulnerabilities	6 Oct 202614:22	–	ibm
IBM Security Bulletins	Security Bulletin: IBM Instana Observability is affected by multiple vulnerabilities within Instana Agent container image	8 Sep 202617:48	–	ibm
IBM Security Bulletins	Security Bulletin: Vulnerability in golang.org/x/mod bundled with IBM Fusion and IBM Fusion HCI	2 Oct 202618:50	–	ibm
IBM Security Bulletins	Security Bulletin: Platform Navigator and Automation Assets in IBM Cloud Pak for Integration are vulnerable to multiple vulnerabilities in net	2 Jul 202612:43	–	ibm
IBM Security Bulletins	Security Bulletin: Multiple Vulnerabilities in IBM Operator for PostgreSQL	20 Aug 202623:55	–	ibm
IBM Security Bulletins	Security Bulletin: Multiple vulnerabilities affect Data Virtualization on IBM Software Hub (June 2026 - Part 2 of 2)	7 Jul 202607:24	–	ibm
IBM Security Bulletins	Security Bulletin: Multiple vulnerabilities addressed in IBM SevOne Network Performance Management for September 2026.	12 Oct 202622:55	–	ibm

Source	Link
github	www.github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-KO31881.json
osv	www.osv.dev/vulnerability/CVE-2026-33818
osv	www.osv.dev/vulnerability/CVE-2026-39821
osv	www.osv.dev/vulnerability/CVE-2026-46600
osv	www.osv.dev/vulnerability/CVE-2026-56853
osv	www.osv.dev/vulnerability/CVE-2026-56858
osv	www.osv.dev/vulnerability/CVE-2026-56859
osv	www.osv.dev/vulnerability/CVE-2026-56860
osv	www.osv.dev/vulnerability/CVE-2026-56862
osv	www.osv.dev/vulnerability/CVE-2026-56864

18 Sep 2026 12:17Current

5.9Medium risk

Vulners AI Score5.9

CVSS 3.19.8

EPSS0.00697

dex GOSUMDB transparency log arbitrary module content module