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NVD / CVE Program· CNA redhat

CVE-2020-10736: An authorization bypass vulnerability was found in Ceph versions 15.2.0 before 15.2.2, where the ceph-mon and ceph-mgr daemons do not…

HighCVSS 8.0 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 32/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.64% (FIRST EPSS); higher than 51.4% of all records.
  • Someone on the same network segment can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: ceph (Alpine:v3.13) 15.2.6-r0; ceph16 (Alpine:v3.17) 15.2.6-r0.

Low priority for now. Upgrade to ceph (Alpine:v3.13) 15.2.6-r0; ceph16 (Alpine:v3.17) 15.2.6-r0 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

An authorization bypass vulnerability was found in Ceph versions 15.2.0 before 15.2.2, where the ceph-mon and ceph-mgr daemons do not properly restrict access, resulting in gaining access to unauthorized resources. This flaw allows an authenticated client to modify the configuration and possibly conduct further attacks.

Published
Jun 22, 2020
Updated
Jun 16, 2026
EPSS
0.6% · 51th percentile

Report tools

JSON

Action score

32

Monitor

Low priority for now.

CVSS
32 / 40 · 8.0 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.6%

CNA vs NVD score

NVD
8.0
CNA · redhat
8.0
agree

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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  • Not in KEV: no record of exploitation in the wild
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Noroxi analysis

What does it mean in your environment?

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxfoundationceph

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

  • [UNKNOWN] ceph

    • 15.2.0 before 15.2.2affected

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linuxfoundation ceph15.2.0 and later · before 15.2.2

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Alpine:v3.13cephfrom 15.2.0 · before 15.2.6-r015.2.6-r0
Alpine:v3.17ceph16before 15.2.6-r015.2.6-r0

Same product

linuxfoundation: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-0670A flaw was found in Openstack manilla owning a Ceph File system "share", which enables the owner to read/write any manilla share or entire…
    36Monitor
  • CVE-2020-12059An issue was discovered in Ceph through 13.2.9.
    31Monitor
  • CVE-2020-1699A path traversal flaw was found in the Ceph dashboard implemented in upstream versions v14.2.5, v14.2.6, v15.0.0 of Ceph storage and has…
    31Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2020-1760Apr 23, 2020 · A flaw was found in the Ceph Object Gateway, where it supports request sent by an anonymous user in Amazon S3.
    24Monitor
  • Later →CVE-2021-20288Apr 15, 2021 · An authentication flaw was found in ceph in versions before 14.2.20.
    29Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
alpine:ceph15.2.6-r0 · Alpine:v3.13Package registry (OSV)
alpine:ceph1615.2.6-r0 · Alpine:v3.17Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Someone on the same network segment can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Adjacent
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-285 · Improper Authorization

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

References

Show all references (1 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records