What is GHSA-mv3r-x43m-8mr7?

GHSA-mv3r-x43m-8mr7 is a security advisory published by GitHub Security Advisories with High severity. Unbounded multi-line response accumulation in SmtpResponseDecoder leads to memory-exhaustion DoS

Which CVE IDs does GHSA-mv3r-x43m-8mr7 cover?

GHSA-mv3r-x43m-8mr7 covers the following CVE IDs: CVE-2026-93563. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-mv3r-x43m-8mr7?

GHSA-mv3r-x43m-8mr7 has a CVSS v3 base score of 7.5, published by GitHub Security Advisories.

GHSA-mv3r-x43m-8mr7HighCVSS 7.5

Unbounded multi-line response accumulation in SmtpResponseDecoder leads to memory-exhaustion DoS

Vendor

GitHub Security Advisories

Published

September 18, 2026

Last Modified

September 18, 2026

🔗 CVE IDs covered (1)

CVE-2026-93563 →

📋 Description

Unbounded multi-line response accumulation in SmtpResponseDecoder leads to memory-exhaustion DoS

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-93563
https://access.redhat.com/security/cve/CVE-2026-93563
https://bugzilla.redhat.com/show_bug.cgi?id=2536976
https://github.com/advisories/GHSA-mv3r-x43m-8mr7