What is GHSA-4vv9-m5xv-x4cc?

GHSA-4vv9-m5xv-x4cc is a security advisory published by GitHub Security Advisories with Medium severity. IBM MQ could allow an authenticated attacker to cause a denial of service due to improper...

Which CVE IDs does GHSA-4vv9-m5xv-x4cc cover?

GHSA-4vv9-m5xv-x4cc covers the following CVE IDs: CVE-2026-12343. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-4vv9-m5xv-x4cc?

GHSA-4vv9-m5xv-x4cc has a CVSS v3 base score of 6.5, published by GitHub Security Advisories.

GHSA-4vv9-m5xv-x4ccMediumCVSS 6.5

IBM MQ could allow an authenticated attacker to cause a denial of service due to improper...

Vendor

GitHub Security Advisories

Published

October 19, 2026

Last Modified

October 19, 2026

🔗 CVE IDs covered (1)

CVE-2026-12343 →

📋 Description

IBM MQ could allow an authenticated attacker to cause a denial of service due to improper validation of RFH2 message header fields in queued publish/subscribe operations.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-12343
https://www.ibm.com/support/pages/node/7292667
https://github.com/advisories/GHSA-4vv9-m5xv-x4cc