CVE-2026-50152

CRITICALPre-NVD 9.19.1
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

This critical-severity CVE scores 9.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2% (14th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
Trending — Patch released this week
9.1EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 9.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Ceph is an open-source distributed storage platform providing object, block, and file storage. In versions prior to 20.2.4 and 19.2.6, the Monitor subscription handler fails to properly authorize access to the configuration-key store, allowing any CephX user with only  mon allow r capabilities to read the entire store by sending a single crafted MMonSubscribe message. The config-key store holds sensitive secrets including OSD LUKS disk-encryption passphrases and, on cephadm-managed clusters, the SSH private key that cephadm uses to reach every host in the cluster. Because that key grants root on every node under the default cephadm configuration, a low-privileged read-only account can escalate to full cluster and host compromise. This issue is fixed in versions 20.2.4 and 19.2.6

CVSS v3
9.1
EG Score
9.1CRITICALmedium confidence
EG Risk
41
EG Risk 41/100

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 (value × EchelonGraph’s weight)
Severity91% × 45%
The EG Score, 9.1 of 10.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
14th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 27, 2026

Last Modified

September 8, 2026

Advisory Details (3)

Auto-updated Sep 15, 2026
Patch available. Sources: github_commit, github.
GitHub advisoryMentions a patch (unverified)

MON config-key store improper authorization · Advisory · ceph/ceph · GitHub

https://github.com/ceph/ceph/security/advisories/GHSA-rg9p-5xcp-wm8h
GitHub commit

commit f2840d2fd338 (ceph/ceph)

Fix landed in ceph/ceph commit f2840d2fd338 — awaiting tagged release

https://github.com/ceph/ceph/commit/f2840d2fd338ab5de2865f0f78684bbf7b888c84
GitHub commit

commit d971bb2b6199 (ceph/ceph)

Fix landed in ceph/ceph commit d971bb2b6199 — awaiting tagged release

https://github.com/ceph/ceph/commit/d971bb2b6199f70b1708a20a63fa944ee7a94727

Vendor Advisories for CVE-2026-50152(2)

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

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatrhceph/rhceph-8-rhel9:17911769902026-10-08redhat

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

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
ceph16.2.11+ds-2 ... 20.2.4+ds-1 (63 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
ceph18.2.7+ds-1 ... 20.2.4+ds-1 (20 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
ceph18.2.7+ds-1 ... 20.2.2+ds-9 (18 versions)
  • every version up to 20.2.4+ds-1: fixed in 20.2.4+ds-1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 23× in last 7d / 62× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

  1. 2026-10-14 09:04 UTCEG score recompute
  2. 2026-10-14 09:04 UTCVendor advisory
  3. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  4. 2026-10-13 05:50 UTCEG score recompute
  5. 2026-10-13 05:50 UTCVendor advisory
  6. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  7. 2026-10-12 15:59 UTCEG score recompute
  8. 2026-10-12 07:17 UTCVendor advisory
  9. 2026-10-11 19:42 UTCEG score recompute
  10. 2026-10-11 16:57 UTCEG score recompute
  11. 2026-10-11 14:21 UTCEG score recompute
  12. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  13. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  14. 2026-10-10 13:46 UTCVendor advisory
  15. 2026-10-10 09:44 UTCVendor advisory
  16. 2026-10-10 05:37 UTCVendor advisory
  17. 2026-10-10 01:45 UTCEG score recompute
  18. 2026-10-10 01:45 UTCVendor advisory
  19. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  20. 2026-10-09 02:55 UTCEG score recompute
  21. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  22. 2026-10-08 01:13 UTCEG score recompute
  23. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  24. 2026-10-06 18:48 UTCEG score recompute
  25. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 14th percentile
Show 75 more
  1. 2026-10-05 20:35 UTCEG score recompute
  2. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  3. 2026-10-05 01:23 UTCEG score recompute
  4. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  5. 2026-10-03 14:56 UTCEG score recompute
  6. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  7. 2026-10-02 21:35 UTCEG score recompute
  8. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  9. 2026-10-01 19:52 UTCEG score recompute
  10. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  11. 2026-09-30 19:53 UTCEG score recompute
  12. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  13. 2026-09-30 04:53 UTCEG score recompute
  14. 2026-09-29 01:19 UTCEG score recompute
  15. 2026-09-28 15:57 UTCEG score recompute
  16. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  17. 2026-09-27 17:23 UTCEG score recompute
  18. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  19. 2026-09-26 18:22 UTCEG score recompute
  20. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  21. 2026-09-26 00:27 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  22. 2026-09-24 15:24 UTCEG score recompute
  23. 2026-09-23 20:34 UTCEG score recompute
  24. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  25. 2026-09-22 18:22 UTCEG score recompute
  26. 2026-09-21 22:41 UTCEG score recompute
  27. 2026-09-20 23:53 UTCEG score recompute
  28. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  29. 2026-09-19 16:15 UTCEG score recompute
  30. 2026-09-18 21:29 UTCEG score recompute
  31. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  32. 2026-09-17 20:54 UTCEG score recompute
  33. 2026-09-16 19:03 UTCEG score recompute
  34. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  35. 2026-09-16 09:15 UTCEG score recompute
  36. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  37. 2026-09-15 06:08 UTCEG score recompute
  38. 2026-09-13 19:07 UTCEG score recompute
  39. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  40. 2026-09-12 16:53 UTCEG score recompute
  41. 2026-09-11 18:22 UTCEG score recompute
  42. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  43. 2026-09-11 10:52 UTCEG score recompute
  44. 2026-09-10 11:52 UTCEG score recompute
  45. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  46. 2026-09-09 01:40 UTCEG score recompute
  47. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  48. 2026-09-07 19:23 UTCEG score recompute
  49. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  50. 2026-09-06 16:51 UTCEG score recompute
  51. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  52. 2026-09-05 18:18 UTCEG score recompute
  53. 2026-09-04 15:03 UTCEG score recompute
  54. 2026-09-04 07:28 UTCEG score recompute
  55. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  56. 2026-09-02 15:01 UTCEG score recompute
  57. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  58. 2026-09-01 15:58 UTCEG score recompute
  59. 2026-09-01 15:03 UTCEG score recompute
  60. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  61. 2026-09-01 08:24 UTCEG score recompute
  62. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  63. 2026-09-01 04:39 UTCEG score recompute
  64. 2026-09-01 04:04 UTCEG score recompute
  65. 2026-08-30 21:07 UTCEG score recompute
  66. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  67. 2026-08-30 02:17 UTCEG score recompute
  68. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  69. 2026-08-28 23:53 UTCEG score recompute
  70. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  71. 2026-08-28 16:39 UTCEG score recompute
  72. 2026-08-28 15:41 UTCEG score recompute
  73. 2026-08-28 00:31 UTCEG score recompute
  74. 2026-08-27 23:23 UTCEG score recomputeFirst assessed: 9.1 CRITICAL
  75. 2026-08-27 23:22 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-50152?
CVE-2026-50152 is a critical-severity vulnerability; its CVE record was published on August 27, 2026. Ceph is an open-source distributed storage platform providing object, block, and file storage. In versions prior to 20.2.4 and 19.2.6, the Monitor subscription handler fails to properly authorize access to the configuration-key store, allowing any CephX user with only mon allow r capabilities to…
When was the CVE record for CVE-2026-50152 published?
The CVE record for CVE-2026-50152 was published on August 27, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 8, 2026; the record at its source may have been updated since.
Is CVE-2026-50152 actively exploited?
CVE-2026-50152 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (14th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-50152?
CVE-2026-50152 has a CVSS base score of 9.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-50152?
A fix for CVE-2026-50152 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-50152 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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