CVE-2026-39828

MEDIUMPre-NVD 6.36.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.3 under CISA-ADP (Vulnrichment) CVSS v3.1 (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 71% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: cisa-adp, epss
Trending — Patch released this week
6.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.3Exploit: None knownExposed: 0

A fix is available — apply it.

When an SSH server authentication callback returned PartialSuccessError with non-nil Permissions, those permissions were silently discarded, potentially dropping certificate restrictions such as force-command after a second factor succeeded. Returning non-nil Permissions with PartialSuccessError now results in a connection error.

CVSS v3
6.3
EG Score
6.3(medium)
EG Risk
28(Track)
EG Risk 28/100SSVC: 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 computed
Severity63% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
29%
KEV
Not listed

Published

May 22, 2026

Last Modified

July 24, 2026

Advisory Details (4)

Auto-updated Jun 14, 2026
No patch confirmed yet.
generic

GO-2026-5014 - Go Packages

https://pkg.go.dev/vuln/GO-2026-5014
generic
https://groups.google.com/g/golang-announce/c/a082jnz-LvI
generic

x/crypto/ssh: bypass of certificate restrictions · Issue #79562 · golang/go · GitHub

https://go.dev/issue/79562
generic
https://go.dev/cl/781621

Vendor Advisories for CVE-2026-39828(20)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(29)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatoadp/oadp-velero-rhel9:17840588222026-07-22redhat
redhatquay/quay-rhel8:17843539042026-07-21redhat
redhatquay/quay-rhel8:17843519662026-07-21redhat
redhatquay/quay-rhel8:17837518652026-07-20redhat
redhatrhtas/timestamp-authority-rhel9:17839686442026-07-16redhat
redhatquay/quay-rhel8:17837504472026-07-16redhat
redhatmulticluster-engine/hypershift-addon-rhel9-operator:17830258202026-07-16redhat
redhatopenshift-builds/openshift-builds-webhook-rhel9:17836121632026-07-16redhat
redhatrhem/flightctl-worker-rhel10:17841949712026-07-16redhat
redhatrhtas/rekor-cli-rhel9:17839693652026-07-16redhat
redhatrhtas/rekor-monitor-rhel9:17839685082026-07-16redhat
redhatflightctl-0:1.1.3-1.el9em2026-07-16redhat
redhatquay/quay-rhel9:17839558462026-07-16redhat
redhatrhem/flightctl-worker-rhel9:17841277752026-07-15redhat
redhatquay/quay-rhel8:17841258382026-07-15redhat
redhatrhtas/timestamp-authority-rhel9:17833266902026-07-09redhat
redhatrhtas/rekor-cli-rhel9:17833326252026-07-09redhat
redhatrhtas/rekor-monitor-rhel9:17833305722026-07-09redhat
redhatodf4/rook-ceph-rhel9-operator:17829342842026-07-09redhat
redhatrhtas/model-validation-rhel9-operator:17829927272026-07-09redhat
redhatconforma-cli-stack-v1-4-1.4.22026-07-09redhat
redhatrhtas/policy-controller-rhel9-operator:17829034922026-07-09redhat
redhatrhtas/model-transparency-cli-rhel9:17831838482026-07-09redhat
redhatdevworkspace/devworkspace-rhel9-operator:17824016742026-07-08redhat
redhatadvanced-cluster-security/rhacs-scanner-slim-rhel8:17828917892026-07-08redhat
redhatrhem/flightctl-worker-rhel9:17835024452026-07-08redhat
redhatopenshift-builds/openshift-builds-webhook-rhel9:17830582842026-07-08redhat
redhatflightctl-0:1.0.3-1.el9em2026-07-08redhat
redhatadvanced-cluster-security/rhacs-rhel9-operator:17833525892026-07-07redhat

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

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFixed inDependents
golang.org/x/crypto—0.52.0—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(17)

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 14× in last 7d / 43× 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 122 total refreshes for this CVE.

  1. 2026-07-26 14:54 UTCEPSS rescore
  2. 2026-07-26 14:54 UTCEPSS rescore
  3. 2026-07-26 08:08 UTCEG score recompute
  4. 2026-07-26 08:08 UTCVendor advisory
  5. 2026-07-25 14:18 UTCEPSS rescore
  6. 2026-07-25 14:18 UTCEPSS rescore
  7. 2026-07-24 14:17 UTCEPSS rescore
  8. 2026-07-24 14:17 UTCEPSS rescore
  9. 2026-07-23 14:18 UTCEPSS rescore
  10. 2026-07-23 14:18 UTCEPSS rescore
  11. 2026-07-23 03:10 UTCEG score recompute
  12. 2026-07-22 14:08 UTCEPSS rescore
  13. 2026-07-21 15:24 UTCEPSS rescore
  14. 2026-07-20 17:08 UTCEPSS rescore
  15. 2026-07-19 14:31 UTCEPSS rescore
  16. 2026-07-19 02:29 UTCEPSS rescore
  17. 2026-07-18 10:04 UTCEPSS rescore
  18. 2026-07-17 18:59 UTCOSV refresh
  19. 2026-07-16 17:03 UTCEPSS rescore
  20. 2026-07-15 16:57 UTCEPSS rescore
  21. 2026-07-15 16:57 UTCEPSS rescore
  22. 2026-07-15 02:00 UTCEPSS rescore
  23. 2026-07-13 22:30 UTCEPSS rescore
  24. 2026-07-13 06:13 UTCEPSS rescore
  25. 2026-07-13 06:13 UTCEPSS rescore
Show 75 more
  1. 2026-07-12 05:46 UTCEPSS rescore
  2. 2026-07-11 08:27 UTCEPSS rescore
  3. 2026-07-09 19:10 UTCEPSS rescore
  4. 2026-07-08 15:15 UTCEPSS rescore
  5. 2026-07-07 13:46 UTCEPSS rescore
  6. 2026-07-06 16:27 UTCEPSS rescore
  7. 2026-07-06 16:27 UTCEPSS rescore
  8. 2026-07-06 02:23 UTCEPSS rescore
  9. 2026-07-06 02:23 UTCEPSS rescore
  10. 2026-07-05 02:30 UTCEPSS rescore
  11. 2026-07-04 06:31 UTCEPSS rescore
  12. 2026-07-01 15:06 UTCEPSS rescore
  13. 2026-06-30 23:22 UTCEPSS rescore
  14. 2026-06-29 16:39 UTCVendor advisory
  15. 2026-06-29 14:06 UTCEPSS rescore
  16. 2026-06-28 14:07 UTCEPSS rescore
  17. 2026-06-28 04:56 UTCEPSS rescore
  18. 2026-06-27 19:32 UTCVendor advisory
  19. 2026-06-27 03:08 UTCEPSS rescore
  20. 2026-06-26 19:15 UTCVendor advisory
  21. 2026-06-25 14:10 UTCVendor advisory
  22. 2026-06-25 13:49 UTCEPSS rescore
  23. 2026-06-25 13:49 UTCEPSS rescore
  24. 2026-06-24 14:05 UTCEPSS rescore
  25. 2026-06-23 21:33 UTCEPSS rescore
  26. 2026-06-22 14:25 UTCEPSS rescore
  27. 2026-06-22 14:25 UTCEPSS rescore
  28. 2026-06-21 14:56 UTCEPSS rescore
  29. 2026-06-21 14:56 UTCEPSS rescore
  30. 2026-06-21 01:59 UTCEPSS rescore
  31. 2026-06-19 19:25 UTCEPSS rescore
  32. 2026-06-18 17:52 UTCEPSS rescore
  33. 2026-06-18 17:52 UTCEPSS rescore
  34. 2026-06-17 19:56 UTCVendor advisory
  35. 2026-06-17 17:53 UTCEPSS rescore
  36. 2026-06-16 21:14 UTCVendor advisory
  37. 2026-06-16 17:52 UTCEPSS rescore
  38. 2026-06-15 22:51 UTCVendor advisory
  39. 2026-06-15 17:49 UTCEPSS rescore
  40. 2026-06-15 00:36 UTCVendor advisory
  41. 2026-06-14 23:18 UTCEPSS rescore
  42. 2026-06-14 02:20 UTCVendor advisory
  43. 2026-06-13 23:00 UTCEPSS rescore
  44. 2026-06-13 04:02 UTCVendor advisory
  45. 2026-06-12 23:12 UTCEPSS rescore
  46. 2026-06-12 23:12 UTCEPSS rescore
  47. 2026-06-12 05:44 UTCVendor advisory
  48. 2026-06-11 14:00 UTCEPSS rescore
  49. 2026-06-11 07:28 UTCVendor advisory
  50. 2026-06-10 22:18 UTCEPSS rescore
  51. 2026-06-10 13:22 UTCEPSS rescore
  52. 2026-06-10 09:13 UTCVendor advisory
  53. 2026-06-09 10:57 UTCVendor advisory
  54. 2026-06-08 14:17 UTCEPSS rescore
  55. 2026-06-08 14:17 UTCEPSS rescore
  56. 2026-06-08 12:41 UTCVendor advisory
  57. 2026-06-07 15:25 UTCEPSS rescore
  58. 2026-06-07 15:25 UTCEPSS rescore
  59. 2026-06-07 15:25 UTCEPSS rescore
  60. 2026-06-07 14:26 UTCVendor advisory
  61. 2026-06-06 16:10 UTCVendor advisory
  62. 2026-06-06 13:47 UTCEPSS rescore
  63. 2026-06-06 13:47 UTCEPSS rescore
  64. 2026-06-05 22:47 UTCEPSS rescore
  65. 2026-06-05 22:47 UTCEPSS rescore
  66. 2026-06-05 17:54 UTCVendor advisory
  67. 2026-06-05 06:10 UTCEPSS rescore
  68. 2026-06-05 06:10 UTCEPSS rescore
  69. 2026-06-04 19:38 UTCVendor advisory
  70. 2026-06-04 13:12 UTCEPSS rescore
  71. 2026-06-04 13:12 UTCEPSS rescore
  72. 2026-06-03 21:22 UTCVendor advisory
  73. 2026-06-02 23:06 UTCVendor advisory
  74. 2026-06-02 20:13 UTCEPSS rescore
  75. 2026-06-02 00:50 UTCVendor advisory

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-39828?
CVE-2026-39828 is a medium vulnerability published on May 22, 2026. When an SSH server authentication callback returned PartialSuccessError with non-nil Permissions, those permissions were silently discarded, potentially dropping certificate restrictions such as force-command after a second factor succeeded. Returning non-nil Permissions with PartialSuccessError…
When was CVE-2026-39828 disclosed?
CVE-2026-39828 was first published in the National Vulnerability Database on May 22, 2026, with the most recent update on July 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-39828 actively exploited?
CVE-2026-39828 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 70.5% of all scored CVEs.
What is the CVSS score of CVE-2026-39828?
CVE-2026-39828 has a CVSS v3.1 base score of 6.3 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-39828?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-39828, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-39828

Explore →

Is Your Infrastructure Affected by CVE-2026-39828?

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

Start Free Scan →Browse All CVEs