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 70% 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
30%
KEV
Not listed

Published

May 22, 2026

Last Modified

August 28, 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(26)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatrhoai/odh-trainer-rhel9:17870890492026-08-27redhat
redhatoadp/oadp-velero-rhel9:17869445402026-08-25redhat
redhatrhacm2/multicluster-operators-subscription-rhel9:17869087772026-08-19redhat
redhatmulticluster-engine/cluster-image-set-controller-rhel9:17869119572026-08-19redhat
redhatcert-manager/jetstack-cert-manager-rhel9:17866138052026-08-13redhat
redhatopenshift4/ose-hyperkube-rhel9:17858846882026-08-11redhat
redhatopenshift-gitops-1/argocd-rhel9:17852113462026-08-10redhat
redhatopenshift-gitops-1/argocd-rhel8:17851492602026-08-10redhat
redhatoadp/oadp-velero-rhel9:17851808782026-08-06redhat
redhatconforma-cli-stack-v1-4-1.4.32026-08-05redhat
redhatcryostat/cryostat-storage-rhel9:4.2.0-192026-07-29redhat
redhatmulticluster-engine/cluster-image-set-controller-rhel9:17846467862026-07-29redhat
redhatrhacm2/multicluster-operators-subscription-rhel9:17842295082026-07-28redhat
redhatmulticluster-engine/cluster-image-set-controller-rhel9:17846460262026-07-28redhat
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
redhatflightctl-0:1.1.3-1.el9em2026-07-16redhat
redhatmulticluster-engine/hypershift-addon-rhel9-operator:17830258202026-07-16redhat
redhatrhtas/rekor-monitor-rhel9:17839685082026-07-16redhat
redhatrhtas/timestamp-authority-rhel9:17839686442026-07-16redhat
redhatrhem/flightctl-worker-rhel10:17841949712026-07-16redhat
redhatrhtas/rekor-cli-rhel9:17839693652026-07-16redhat
redhatquay/quay-rhel9:17839558462026-07-16redhat
redhatopenshift-builds/openshift-builds-webhook-rhel9:17836121632026-07-16redhat

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

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
golang-go.crypto1:0.0~git20201221.eec23a3-1 ... 1:0.53.0-1 (40 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
golang-go.crypto1:0.10.0-1 ... 1:0.53.0-1 (33 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
golang-go.crypto1:0.25.0-1 ... 1:0.53.0-1 (18 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
golang-go.crypto1:0.25.0-1 ... 1:0.52.0-1~bpo13+1 (16 versions)1:0.52.0-1—
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.

All Vendor Advisories

(25)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 21× in last 7d / 104× 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 244 total refreshes for this CVE.

  1. 2026-08-30 01:22 UTCEPSS rescore
  2. 2026-08-28 21:41 UTCEPSS rescore
  3. 2026-08-28 16:47 UTCVendor advisory
  4. 2026-08-28 16:00 UTCEG score recompute
  5. 2026-08-28 16:00 UTCVendor advisory
  6. 2026-08-27 14:25 UTCEPSS rescore
  7. 2026-08-27 13:02 UTCVendor advisory
  8. 2026-08-26 16:24 UTCEG score recompute
  9. 2026-08-26 16:24 UTCVendor advisory
  10. 2026-08-26 14:46 UTCEPSS rescore
  11. 2026-08-26 12:21 UTCEG score recompute
  12. 2026-08-26 12:21 UTCVendor advisory
  13. 2026-08-25 13:49 UTCEPSS rescore
  14. 2026-08-25 13:24 UTCVendor advisory
  15. 2026-08-25 12:20 UTCEG score recompute
  16. 2026-08-25 12:20 UTCVendor advisory
  17. 2026-08-24 13:29 UTCVendor advisory
  18. 2026-08-24 12:25 UTCEG score recompute
  19. 2026-08-24 12:25 UTCVendor advisory
  20. 2026-08-23 16:42 UTCEG score recompute
  21. 2026-08-23 16:42 UTCVendor advisory
  22. 2026-08-23 00:19 UTCEPSS rescore
  23. 2026-08-21 23:49 UTCEPSS rescore
  24. 2026-08-21 13:19 UTCVendor advisory
  25. 2026-08-21 12:31 UTCEG score recompute
Show 75 more
  1. 2026-08-21 12:31 UTCVendor advisory
  2. 2026-08-20 22:55 UTCEPSS rescore
  3. 2026-08-20 13:58 UTCVendor advisory
  4. 2026-08-20 12:43 UTCEG score recompute
  5. 2026-08-20 12:43 UTCVendor advisory
  6. 2026-08-19 17:03 UTCEPSS rescore
  7. 2026-08-19 12:27 UTCVendor advisory
  8. 2026-08-19 12:11 UTCEG score recompute
  9. 2026-08-19 12:11 UTCVendor advisory
  10. 2026-08-18 13:48 UTCEPSS rescore
  11. 2026-08-18 12:40 UTCVendor advisory
  12. 2026-08-18 12:18 UTCEG score recompute
  13. 2026-08-18 12:18 UTCVendor advisory
  14. 2026-08-17 13:47 UTCEPSS rescore
  15. 2026-08-17 12:19 UTCVendor advisory
  16. 2026-08-17 12:12 UTCVendor advisory
  17. 2026-08-17 09:45 UTCEG score recompute
  18. 2026-08-17 09:45 UTCVendor advisory
  19. 2026-08-16 14:56 UTCEPSS rescore
  20. 2026-08-16 03:21 UTCEG score recompute
  21. 2026-08-16 03:21 UTCVendor advisory
  22. 2026-08-16 02:14 UTCEPSS rescore
  23. 2026-08-15 01:30 UTCEPSS rescore
  24. 2026-08-14 13:27 UTCVendor advisory
  25. 2026-08-14 12:29 UTCVendor advisory
  26. 2026-08-14 11:53 UTCEG score recompute
  27. 2026-08-14 11:53 UTCVendor advisory
  28. 2026-08-13 22:00 UTCEPSS rescore
  29. 2026-08-13 13:37 UTCVendor advisory
  30. 2026-08-13 12:28 UTCVendor advisory
  31. 2026-08-13 10:53 UTCEG score recompute
  32. 2026-08-13 10:53 UTCVendor advisory
  33. 2026-08-12 13:51 UTCEPSS rescore
  34. 2026-08-12 12:37 UTCVendor advisory
  35. 2026-08-12 12:12 UTCVendor advisory
  36. 2026-08-12 11:52 UTCEG score recompute
  37. 2026-08-12 11:52 UTCVendor advisory
  38. 2026-08-11 13:43 UTCEPSS rescore
  39. 2026-08-11 13:23 UTCVendor advisory
  40. 2026-08-11 12:23 UTCEG score recompute
  41. 2026-08-11 12:23 UTCVendor advisory
  42. 2026-08-11 00:00 UTCEPSS rescore
  43. 2026-08-10 13:21 UTCVendor advisory
  44. 2026-08-10 12:26 UTCVendor advisory
  45. 2026-08-10 07:15 UTCEG score recompute
  46. 2026-08-10 07:15 UTCVendor advisory
  47. 2026-08-09 13:46 UTCEPSS rescore
  48. 2026-08-09 09:00 UTCEG score recompute
  49. 2026-08-09 09:00 UTCVendor advisory
  50. 2026-08-08 16:37 UTCEPSS rescore
  51. 2026-08-08 10:44 UTCEG score recompute
  52. 2026-08-08 10:44 UTCVendor advisory
  53. 2026-08-07 12:25 UTCVendor advisory
  54. 2026-08-07 12:08 UTCEG score recompute
  55. 2026-08-07 12:08 UTCVendor advisory
  56. 2026-08-06 13:46 UTCEPSS rescore
  57. 2026-08-06 13:38 UTCVendor advisory
  58. 2026-08-06 12:34 UTCVendor advisory
  59. 2026-08-06 12:01 UTCEG score recompute
  60. 2026-08-06 12:01 UTCVendor advisory
  61. 2026-08-05 19:17 UTCEPSS rescore
  62. 2026-08-05 13:44 UTCVendor advisory
  63. 2026-08-05 12:33 UTCEG score recompute
  64. 2026-08-05 12:33 UTCVendor advisory
  65. 2026-08-04 15:10 UTCEPSS rescore
  66. 2026-08-04 13:26 UTCVendor advisory
  67. 2026-08-04 12:34 UTCEG score recompute
  68. 2026-08-04 12:34 UTCVendor advisory
  69. 2026-08-04 10:38 UTCEPSS rescore
  70. 2026-08-03 13:43 UTCVendor advisory
  71. 2026-08-03 12:47 UTCEG score recompute
  72. 2026-08-03 12:47 UTCVendor advisory
  73. 2026-08-03 10:36 UTCEPSS rescore
  74. 2026-08-02 15:35 UTCEG score recompute
  75. 2026-08-02 15:35 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 August 28, 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 70.3% 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

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