In sshd in OpenSSH before 10.4, DisableForwarding=yes was supposed to take precedence over PermitTunnel=yes, but did not.
CVE-2026-59999
This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 95% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EG Risk
- 34(Track)EG Risk 34/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity75% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 5%
- KEV
- Not listed
Published
July 8, 2026
Last Modified
July 9, 2026
Advisory Details (3)
Auto-updated Jul 8, 2026oss-security - Announce: OpenSSH 10.4 released
https://www.openwall.com/lists/oss-security/2026/07/06/5'Announce: OpenSSH 10.4 released' - MARC
https://marc.info/?l=openssh-unix-dev&m=178333966933090&w=2Vendor Advisories for CVE-2026-59999(3)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- CVE-2026-59999Microsoft Security Response Center (MSRC)Medium
In sshd in OpenSSH before 10.4, DisableForwarding=yes was supposed to take precedence over PermitTunnel=yes, but did not.
- RHSA-2026:37382Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
- GHSA-gcm2-x6hm-q4h3GitHub Security AdvisoriesMedium
In sshd in OpenSSH before 10.4, DisableForwarding=yes was supposed to take precedence over...
Patch Availability(2)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | ssh-askpass-gnome (1:10.2p1-2ubuntu3.4) @ resolute | 2026-08-25 | ubuntu |
| redhat | openssh-main-10.4p1-1.hum1 | 2026-07-09 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(4 across 4 ecosystems)
Debian:11(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| openssh | 1:10.0p1-1 ... 1:9.9p2-2 (86 versions) | — | — |
Debian:12(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| openssh | 1:10.0p1-1 ... 1:9.9p2-2 (75 versions) | — | — |
Debian:13(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| openssh | 1:10.0p1-7 ... 1:10.4p1-4 (29 versions) | — | — |
Debian:14(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| openssh | 1:10.0p1-7 ... 1:10.3p1-9 (21 versions) | 1:10.4p1-1 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(1)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
Data Freshness Timeline
(refreshed 34× in last 7d / 172× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 229 total refreshes for this CVE.
- 2026-08-25 13:49 UTCEPSS rescore
- 2026-08-25 10:16 UTCVendor advisory
- 2026-08-25 10:16 UTCGHSA enrichment
- 2026-08-24 20:36 UTCEG score recompute
- 2026-08-24 20:36 UTCVendor advisory
- 2026-08-24 20:36 UTCGHSA enrichment
- 2026-08-24 04:04 UTCVendor advisory
- 2026-08-24 04:04 UTCGHSA enrichment
- 2026-08-23 14:49 UTCVendor advisory
- 2026-08-23 14:49 UTCGHSA enrichment
- 2026-08-23 03:15 UTCEG score recompute
- 2026-08-23 03:15 UTCVendor advisory
- 2026-08-23 03:15 UTCGHSA enrichment
- 2026-08-23 00:19 UTCEPSS rescore
- 2026-08-22 15:31 UTCVendor advisory
- 2026-08-22 15:31 UTCGHSA enrichment
- 2026-08-22 03:56 UTCEG score recompute
- 2026-08-22 03:56 UTCVendor advisory
- 2026-08-22 03:56 UTCGHSA enrichment
- 2026-08-21 23:49 UTCEPSS rescore
- 2026-08-21 15:47 UTCVendor advisory
- 2026-08-21 15:47 UTCGHSA enrichment
- 2026-08-21 04:09 UTCEG score recompute
- 2026-08-21 04:09 UTCVendor advisory
- 2026-08-21 04:09 UTCGHSA enrichment
Show 75 moreShow fewer
- 2026-08-20 22:55 UTCEPSS rescore
- 2026-08-20 15:39 UTCVendor advisory
- 2026-08-20 15:39 UTCGHSA enrichment
- 2026-08-20 02:09 UTCEG score recompute
- 2026-08-20 02:09 UTCVendor advisory
- 2026-08-20 02:09 UTCGHSA enrichment
- 2026-08-19 17:04 UTCEPSS rescore
- 2026-08-19 10:17 UTCVendor advisory
- 2026-08-19 10:17 UTCGHSA enrichment
- 2026-08-18 22:28 UTCEG score recompute
- 2026-08-18 22:28 UTCVendor advisory
- 2026-08-18 22:28 UTCGHSA enrichment
- 2026-08-18 13:48 UTCEPSS rescore
- 2026-08-18 10:53 UTCVendor advisory
- 2026-08-18 10:53 UTCGHSA enrichment
- 2026-08-17 22:32 UTCEG score recompute
- 2026-08-17 22:32 UTCVendor advisory
- 2026-08-17 22:32 UTCGHSA enrichment
- 2026-08-17 13:47 UTCEPSS rescore
- 2026-08-17 08:53 UTCVendor advisory
- 2026-08-17 08:53 UTCGHSA enrichment
- 2026-08-16 21:20 UTCEG score recompute
- 2026-08-16 21:20 UTCVendor advisory
- 2026-08-16 21:20 UTCGHSA enrichment
- 2026-08-16 14:56 UTCEPSS rescore
- 2026-08-16 09:45 UTCEG score recompute
- 2026-08-16 09:45 UTCVendor advisory
- 2026-08-16 09:45 UTCGHSA enrichment
- 2026-08-16 02:14 UTCEPSS rescore
- 2026-08-15 22:12 UTCVendor advisory
- 2026-08-15 22:12 UTCGHSA enrichment
- 2026-08-15 10:38 UTCEG score recompute
- 2026-08-15 10:38 UTCVendor advisory
- 2026-08-15 10:38 UTCGHSA enrichment
- 2026-08-15 01:30 UTCEPSS rescore
- 2026-08-14 23:03 UTCVendor advisory
- 2026-08-14 23:03 UTCGHSA enrichment
- 2026-08-14 11:29 UTCVendor advisory
- 2026-08-14 11:29 UTCGHSA enrichment
- 2026-08-13 23:56 UTCEG score recompute
- 2026-08-13 23:56 UTCVendor advisory
- 2026-08-13 23:56 UTCGHSA enrichment
- 2026-08-13 22:00 UTCEPSS rescore
- 2026-08-13 12:22 UTCVendor advisory
- 2026-08-13 12:22 UTCGHSA enrichment
- 2026-08-13 00:49 UTCEG score recompute
- 2026-08-13 00:49 UTCVendor advisory
- 2026-08-13 00:49 UTCGHSA enrichment
- 2026-08-12 13:51 UTCEPSS rescore
- 2026-08-12 13:15 UTCVendor advisory
- 2026-08-12 13:15 UTCGHSA enrichment
- 2026-08-12 01:41 UTCVendor advisory
- 2026-08-12 01:41 UTCGHSA enrichment
- 2026-08-11 14:07 UTCEG score recompute
- 2026-08-11 14:07 UTCVendor advisory
- 2026-08-11 14:07 UTCGHSA enrichment
- 2026-08-11 02:30 UTCEG score recompute
- 2026-08-11 02:30 UTCVendor advisory
- 2026-08-11 02:30 UTCGHSA enrichment
- 2026-08-11 00:00 UTCEPSS rescore
- 2026-08-10 14:57 UTCVendor advisory
- 2026-08-10 14:57 UTCGHSA enrichment
- 2026-08-10 03:23 UTCVendor advisory
- 2026-08-10 03:23 UTCGHSA enrichment
- 2026-08-09 15:49 UTCEG score recompute
- 2026-08-09 15:49 UTCVendor advisory
- 2026-08-09 15:49 UTCGHSA enrichment
- 2026-08-09 13:46 UTCEPSS rescore
- 2026-08-09 04:16 UTCVendor advisory
- 2026-08-09 04:16 UTCGHSA enrichment
- 2026-08-08 16:42 UTCEG score recompute
- 2026-08-08 16:42 UTCVendor advisory
- 2026-08-08 16:42 UTCGHSA enrichment
- 2026-08-08 16:37 UTCEPSS rescore
- 2026-08-08 05:08 UTCVendor advisory
Frequently asked(5)
What is CVE-2026-59999?
When was CVE-2026-59999 disclosed?
Is CVE-2026-59999 actively exploited?
What is the CVSS score of CVE-2026-59999?
How do I remediate CVE-2026-59999?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-59999
Is Your Infrastructure Affected by CVE-2026-59999?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.