CLEANSTART-2026-WP20592 SSH servers parsing GSSAPI authentication requests do not validate the number of mechanisms specified in the request, allowing an attacker to cause unbounded memory consumption

🗓️ 30 Jan 2026 16:05:24Reported by GoogleType

osv🔗 osv.dev👁 14 Views

Argo Workflows FIPS package vulnerabilities allow memory exhaustion via unvalidated GSSAPI mechanism counts in secure shell

Reporter	Title	Published	Views	Family All 27549
OSV	CGA-29Q9-GPV8-96X8	4 Dec 202509:44	–	osv
OSV	CGA-29VP-HXV5-F53Q	22 Nov 202518:41	–	osv
OSV	CGA-29VP-VCWJ-3H23	22 Nov 202502:42	–	osv
OSV	CGA-29WJ-GP49-FP6F	9 Aug 202509:31	–	osv
OSV	CGA-29WM-F959-RV9J	21 Nov 202522:53	–	osv
OSV	CGA-29WQ-H5J2-5C8Q	22 Nov 202509:35	–	osv
OSV	CGA-29WW-V8GC-MQRX	22 Nov 202519:16	–	osv
OSV	CGA-29XC-XJ8V-8C46	3 Dec 202516:46	–	osv
OSV	CGA-2C2C-2HWX-X6CG	30 Oct 202519:58	–	osv
OSV	CGA-2C37-3FVM-JW7X	30 Oct 202519:51	–	osv

Source	Link
github	www.github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-WP20592
osv	www.osv.dev/vulnerability/CVE-2025-0913
osv	www.osv.dev/vulnerability/CVE-2025-4673
osv	www.osv.dev/vulnerability/CVE-2025-47907
osv	www.osv.dev/vulnerability/CVE-2025-47914
osv	www.osv.dev/vulnerability/CVE-2025-58181
osv	www.osv.dev/vulnerability/CVE-2025-62156
osv	www.osv.dev/vulnerability/CVE-2025-62157
osv	www.osv.dev/vulnerability/GHSA-C2HV-4PFJ-MM2R
osv	www.osv.dev/vulnerability/GHSA-CFPF-HRX2-8RV6

09 Sep 2026 12:01Current

5.8Medium risk

Vulners AI Score5.8

CVSS 3.19.8

EPSS0.00641