CVE-2026-93853Hinoki check available

Cloud snapshot deletion via unverified backup metadata

Published Sep 29, 2026 · Updated Sep 29, 2026

Snapshot deletion in EnterpriseDB Barman 3.4.0 through 3.20.0 allows attackers with catalog write access to delete unrelated cloud snapshots. During backup deletion or retention cleanup, Barman reads snapshot IDs from backup.info and sends them to the cloud delete API without checking backup ownership. Exploitation requires separate catalog-write and cloud-delete identities; substituted IDs can target snapshots reachable by Barman's cloud credentials.

CVSS severityUnavailable
Unscored
EPSS probability0.21%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Snapshot deletion in EnterpriseDB Barman 3.4.0 through 3.20.0 allows attackers with catalog write access to delete unrelated cloud snapshots. During backup deletion or retention cleanup, Barman reads snapshot IDs from backup.info and sends them to the cloud delete API without checking backup ownership. Exploitation requires separate catalog-write and cloud-delete identities; substituted IDs can target snapshots reachable by Barman's cloud credentials.

The record

CVE
CVE-2026-93853
Published
Sep 29, 2026
Updated
Sep 29, 2026
Vendor
EnterpriseDB
Product
Barman
Classifications
T1485
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 29, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 29, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.4.0 <3.20.1

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

EnterpriseDB · Barmanversion=3.4.0 <3.20.1

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1485Data Destruction

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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