CVE-2026-59999

HIGHNVD 7.55.9▼
EchelonGraph scoreMEDIUM confidence

Score 5.9 from GitHub Security Advisory published 2026-07-08. NVD baseline CVSS 7.5; sources differ by 1.6.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.5Exploit: NoneExposed: 0

A fix is available — apply it.

In sshd in OpenSSH before 10.4, DisableForwarding=yes was supposed to take precedence over PermitTunnel=yes, but did not.

CVSS v3
7.5
EG Score
5.9(medium)
EPSS
3.8%
KEV
Not listed

Published

July 8, 2026

Last Modified

July 9, 2026

Advisory Details (3)

Auto-updated Jul 8, 2026
No patch confirmed yet.
generic

oss-security - Announce: OpenSSH 10.4 released

https://www.openwall.com/lists/oss-security/2026/07/06/5
generic

OpenSSH: Release Notes

https://www.openssh.org/releasenotes.html#10.4p1
generic

'Announce: OpenSSH 10.4 released' - MARC

https://marc.info/?l=openssh-unix-dev&m=178333966933090&w=2

Vendor 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.

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntussh-askpass-gnome (1:10.2p1-2ubuntu3.4) @ resolute2026-07-17ubuntu
redhatopenssh-main-10.4p1-1.hum12026-07-09redhat

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.

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 12× in last 7d / 42× 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.

  1. 2026-07-22 14:08 UTCEPSS rescore
  2. 2026-07-22 14:08 UTCEPSS rescore
  3. 2026-07-21 15:25 UTCEPSS rescore
  4. 2026-07-21 15:25 UTCEPSS rescore
  5. 2026-07-20 17:08 UTCEPSS rescore
  6. 2026-07-19 14:31 UTCEPSS rescore
  7. 2026-07-18 10:04 UTCEPSS rescore
  8. 2026-07-17 00:14 UTCVendor advisory
  9. 2026-07-17 00:14 UTCGHSA enrichment
  10. 2026-07-16 17:03 UTCEPSS rescore
  11. 2026-07-16 00:19 UTCVendor advisory
  12. 2026-07-16 00:19 UTCGHSA enrichment
  13. 2026-07-15 16:57 UTCEPSS rescore
  14. 2026-07-15 16:57 UTCEPSS rescore
  15. 2026-07-15 02:00 UTCEPSS rescore
  16. 2026-07-15 02:00 UTCEPSS rescore
  17. 2026-07-15 00:24 UTCVendor advisory
  18. 2026-07-15 00:24 UTCGHSA enrichment
  19. 2026-07-14 00:29 UTCVendor advisory
  20. 2026-07-14 00:29 UTCGHSA enrichment
  21. 2026-07-13 22:31 UTCEPSS rescore
  22. 2026-07-13 06:13 UTCEPSS rescore
  23. 2026-07-13 06:13 UTCEPSS rescore
  24. 2026-07-13 00:34 UTCVendor advisory
  25. 2026-07-13 00:34 UTCGHSA enrichment
Show 17 more
  1. 2026-07-12 05:46 UTCEPSS rescore
  2. 2026-07-12 00:39 UTCVendor advisory
  3. 2026-07-12 00:39 UTCGHSA enrichment
  4. 2026-07-11 08:27 UTCEPSS rescore
  5. 2026-07-11 08:27 UTCEPSS rescore
  6. 2026-07-11 00:43 UTCVendor advisory
  7. 2026-07-11 00:43 UTCGHSA enrichment
  8. 2026-07-10 00:48 UTCVendor advisory
  9. 2026-07-10 00:48 UTCGHSA enrichment
  10. 2026-07-09 19:10 UTCEPSS rescore
  11. 2026-07-09 19:10 UTCEPSS rescore
  12. 2026-07-09 17:00 UTCNVD updateCVSS v3 → 7.5 · severity → HIGH
  13. 2026-07-09 00:51 UTCGHSA enrichment
  14. 2026-07-08 15:16 UTCEPSS rescore
  15. 2026-07-08 15:16 UTCEPSS rescore
  16. 2026-07-08 00:55 UTCEG score recompute
  17. 2026-07-08 00:55 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-59999?
CVE-2026-59999 is a high vulnerability published on July 8, 2026. In sshd in OpenSSH before 10.4, DisableForwarding=yes was supposed to take precedence over PermitTunnel=yes, but did not.
When was CVE-2026-59999 disclosed?
CVE-2026-59999 was first published in the National Vulnerability Database on July 8, 2026, with the most recent update on July 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-59999 actively exploited?
CVE-2026-59999 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-59999?
CVE-2026-59999 has a CVSS v3 base score of 7.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 5.9.
How do I remediate CVE-2026-59999?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-59999, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-59999

Explore →

Is Your Infrastructure Affected by CVE-2026-59999?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs