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PT-2026-40789

🗓️ 13 May 2026 00:00:00Reported by Positive TechnologiesType 
ptsecurity
 ptsecurity
🔗 dbugs.ptsecurity.com👁 12 Views

Two CVEs in MCP client SDKs allow prototype pollution and batched injection via JSON-RPC.

Related
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-30889
20 Mar 202602:59
attackerkb
cnnvd
CNNVD
Discourse 安全漏洞
20 Mar 202600:00
cnnvd
cve
CVE
CVE-2026-30889
20 Mar 202602:59
cve
cve
CVE
CVE-2026-31200
13 May 202600:00
cve
cvelist
Cvelist
CVE-2026-30889 Discourse has Unauthorized Post Data Exposure in discourse-user-notes
20 Mar 202602:59
cvelist
euvd
EUVD
EUVD-2026-13490
20 Mar 202602:59
euvd
nvd
NVD
CVE-2026-30889
20 Mar 202603:15
nvd
osv
OSV
BIT-DISCOURSE-2026-30889 Discourse has Unauthorized Post Data Exposure in discourse-user-notes
27 Mar 202607:10
osv
ptsecurity
Positive Technologies
PT-2026-26540
20 Mar 202600:00
ptsecurity
redhatcve
RedhatCVE
CVE-2026-30889
26 Mar 202615:11
redhatcve
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13 May 2026 00:00Current
6Medium risk
Vulners AI Score6
CVSS 3.14.9
CVSS 45.3
EPSS0.00278
SSVC
12