Published severityHigh→Operational priority:High, unchanged from published severity.unchanged
Evidence used
No CISA KEV confirmation is currently recorded.
The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
EPSS is 0.97% for the current model date.
Compensating controls
Validate the affected product branch and deploy the verified fixed release.
Restrict the affected network interface to trusted sources where business-safe.
Monitor vendor guidance and exploitation sources for a material change.
Verification
Confirm that the asset runs Microsoft Azure Data Factory and falls inside the recorded affected range.
Verify the installed build against the product-specific fixed version after deployment.
Validate exposure, authentication requirements and compensating controls in the actual environment.
Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Direct vendor intelligence
Authoritative vendor CSAF and VEX advisories
Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.
The vendor explicitly identifies these products or versions as containing the fix.
registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:44ddf9fae94ac2f4e74c35433a612c8a0dabf531384f2974a8c4872cde0efaa1_arm64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.11
registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:5291e93f95e8350e361470eec8cd6cac6e697aa712fb061bfa780981a47cb17b_ppc64le as a component of Red Hat Advanced Cluster Management for Kubernetes 2.11
registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:a1af35a23b6ed7aeb297bb59d6ffa84505769c36727c6628667dddd4d87569ad_s390x as a component of Red Hat Advanced Cluster Management for Kubernetes 2.11
registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:e934fad530ced942202a8e893c1ee4a931856709a46a9d711e67779cbf9d48ee_amd64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.11
registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:016023aaab9f3476900a3e7bf2126875500dd171834bad8c395f42a2baae795e_ppc64le as a component of Red Hat Advanced Cluster Management for Kubernetes 2.13
registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:4641f23fc762a798ea7a94e85c44fbf21f37fb8c74d93d9f39c4fe120fd8704a_arm64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.13
registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:dd29bb691d5495ef504883b012248b03a4d8109000ba85dc470b0acb280aab40_s390x as a component of Red Hat Advanced Cluster Management for Kubernetes 2.13
registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:f04d7d5454141691568e02f461bdca9bc58cc07f33244caf4f1caf27cd1d5866_amd64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.13
registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:04fe2d4880d42890325ff697c84bd413218a9fd7f316c4dd195eb307ee2ae859_arm64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.14
registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:3ffb54a51d08d77a3340914bac096cb31dc71145f681a9bcd311f1c38e4256a1_amd64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.14
registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:b1b9c8a2641af71bc376784ad4ee622e116529a512e1a619a227fc8a19bd0af2_ppc64le as a component of Red Hat Advanced Cluster Management for Kubernetes 2.14
registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:ffa6981a04f2439051744797f933da5221f7a96c46998188014e90b999a3ffd3_s390x as a component of Red Hat Advanced Cluster Management for Kubernetes 2.14
Summary
A flaw was found in cluster-backup-operator. A namespace administrator with privileges in the open-cluster-management-backup namespace can exploit a feature in the Restore Custom Resource (CR). By setting the cleanupBeforeRestore field to CleanupAll, an attacker can trigger an unguarded, cluster-wide deletion of all Red Hat Advanced Cluster Management (ACM) and Hive-labelled Secrets and ConfigMaps. This leads to a denial of service across the entire hub cluster by removing critical resources.
Remediation
Before you apply this update, make sure all previously released errata that are relevant to your system are applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
Optional official sources
National CERT insights ?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.
Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.
Official European source
ENISA European Vulnerability Database
Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.
1 current
ENISA EUVD identifier
EUVD-2026-63623
No EUVD known-exploited evidence
Server-side request forgery (ssrf) in Azure Data Factory allows an unauthorized attacker to disclose information over a network.
EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
8.6 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days
High technical severity; prioritise exposed affected systems while verifying vendor guidance.
Patch available
01
What, why and how
Server-side request forgery (ssrf) in Azure Data Factory allows an unauthorized attacker to disclose information over a network.
What
Server-side request forgery (ssrf) in Azure Data Factory allows an unauthorized attacker to disclose information over a network.
Why
The server follows an attacker-influenced destination, allowing requests to systems or services the attacker cannot reach directly.
How
An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.
What
Server-side request forgery (ssrf) in Azure Data Factory allows an unauthorized attacker to disclose information over a network.
Why
The server follows an attacker-influenced destination, allowing requests to systems or services the attacker cannot reach directly.
How
An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.
02
Exploit reality and attack path
CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.
Observed exploitation ?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.No confirmed evidence
No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.
Public PoC / exploit material ?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.None recorded
No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.
Likely attack path
a network path → Server-Side Request Forgery (SSRF) → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Changed: exploitation can affect a different security authority
Weakness ?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-918: Server-Side Request Forgery (SSRF). The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.
CVSS vector ?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.
AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SChangedScope: The attack can affect a component governed by a different security authority.CHighConfidentiality impact: A successful attack can cause a major loss.INoneIntegrity impact: No direct loss is represented by this metric.ANoneAvailability impact: No direct loss is represented by this metric.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedCWE-918
A
Official authority intelligence
Only matched European and national findings are included. Language selectors and unavailable sources are omitted.
ENISA EUVD · EUVD-2026-63623Official EUVD mapping
Server-side request forgery (ssrf) in Azure Data Factory allows an unauthorized attacker to disclose information over a network.
Official EUVD record ↗BSI · German · WID-SEC-2026-2951Microsoft Azure, Entra ID und Exchange: Mehrere Schwachstellen
Ein Angreifer kann mehrere Schwachstellen in Microsoft Azure, Microsoft Entra ID und Microsoft Exchange Online ausnutzen, um beliebigen Code auszuführen, Berechtigungen zu erweitern oder vertrauliche Informationen offenzulegen.
Official advisory ↗Cyber Security Agency of Singapore · English · CSA-SB-20260826Security Bulletin 26 Aug 2026
The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 26 Aug 2026, published on 26 August 2026. Open the linked bulletin for the product, severity and reference information published in that issue.
Official advisory ↗JVN iPedia · Japanese · JVNDB-2026-029776マイクロソフトのazure_data_factoryにおけるサーバサイドのリクエストフォージェリの脆弱性
Azure Data Factory におけるサーバーサイドリクエストフォージェリ(SSRF)は、不正な攻撃者がネットワーク上で情報を漏洩させる攻撃手法です。
Operational remediation based on structured source evidence.
Status ?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Before you apply this update, make sure all previously released errata that are relevant to your system are applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04
Evidence and provenance
Published 20 Aug 2026 · Last source change 29 Sept 2026, 20:23 UTC · CWE-918 · Server-Side Request Forgery (SSRF)
CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source ?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.FIRST · tracked since 2026-08-23
European sourceENISA EUVD · EUVD-2026-63623
Product sourceCNA
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceOther authority
NVD statusNVD enriched
Core structured fields are present and their contributing authorities are shown above.
Affected versionsThe structured affected or fixed version information changed.
Before
Azure Data Factory: - · Fixed: Before you apply this update, make sure all previously released errata that are relevant to your system are applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
After
Azure Data Factory: - · Fixed: No fixed version is explicitly recorded in the structured CVE data.
Affected versionsThe structured affected or fixed version information changed.
Before
Azure Data Factory: - · Fixed: Before you apply this update, make sure all previously released errata that are relevant to your system are applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
After
Azure Data Factory: - · Fixed: No fixed version is explicitly recorded in the structured CVE data.
Affected versionsThe structured affected or fixed version information changed.
Before
Azure Data Factory: - · Fixed: Before you apply this update, make sure all previously released errata that are relevant to your system are applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
After
Azure Data Factory: - · Fixed: No fixed version is explicitly recorded in the structured CVE data.
Affected versionsThe structured affected or fixed version information changed.
Before
Azure Data Factory: - · Fixed: No fixed version is explicitly recorded in the structured CVE data.
After
Azure Data Factory: - · Fixed: Before you apply this update, make sure all previously released errata that are relevant to your system are applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
Affected versionsThe structured affected or fixed version information changed.
Before
rhacm2/cluster-backup-rhel9-operator as a component of Red Hat Advanced Cluster Management for Kubernetes 2
After
Fixed: registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:44ddf9fae94ac2f4e74c35433a612c8a0dabf531384f2974a8c4872cde0efaa1_arm64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.11; registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:5291e93f95e8350e361470eec8cd6cac6e697aa712fb061bfa780981a47cb17b_ppc64le as a component of Red Hat Advanced Cluster Management for Kubernetes 2.11; registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:a1af35a23b6ed7aeb297bb59d6ffa84505769c36727c6628667dddd4d87569ad_s390x as a component of Red Hat Advanced Cluster Management for Kubernetes 2.11; registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:e934fad530ced942202a8e893c1ee4a931856709a46a9d711e67779cbf9d48ee_amd64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.11; registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:016023aaab9f3476900a3e7bf2126875500dd171834bad8c395f42a2baae795e_ppc64le as a component of Red Hat Advanced Cluster Management for Kubernetes 2.13; registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:4641f23fc762a798ea7a94e85c44fbf21f37fb8c74d93d9f39c4fe120fd8704a_arm64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.13; registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:dd29bb691d5495ef504883b012248b03a4d8109000ba85dc470b0acb280aab40_s390x as a component of Red Hat Advanced Cluster Management for Kubernetes 2.13; registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:f04d7d5454141691568e02f461bdca9bc58cc07f33244caf4f1caf27cd1d5866_amd64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.13; registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:04fe2d4880d42890325ff697c84bd413218a9fd7f316c4dd195eb307ee2ae859_arm64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.14; registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:3ffb54a51d08d77a3340914bac096cb31dc71145f681a9bcd311f1c38e4256a1_amd64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.14; registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:b1b9c8a2641af71bc376784ad4ee622e116529a512e1a619a227fc8a19bd0af2_ppc64le as a component of Red Hat Advanced Cluster Management for Kubernetes 2.14; registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:ffa6981a04f2439051744797f933da5221f7a96c46998188014e90b999a3ffd3_s390x as a component of Red Hat Advanced Cluster Management for Kubernetes 2.14; registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:3f2adab532821cb1425677a6c09406e5c10bfe5587bf876b96d6efc5bcd13a4d_amd64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.15; registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:5f62e3fddfe360c23ee3701d4083f96f249f4f70b611ca967dcf1c5307685bc4_ppc64le as a component of Red Hat Advanced Cluster Management for Kubernetes 2.15; registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:8c694a769d0f9482eb0616ec4914e3859eabf701384652502d6ee7c829ff4957_arm64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.15; registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:d3a27a7f536809480a8397deb85bd79fd67978c58b96307d526638cd7de887c5_s390x as a component of Red Hat Advanced Cluster Management for Kubernetes 2.15; registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:1b59d43a234364eabd2dbb68ad8ccd51448faea08b29c5bbba10d20c7f4e2aa4_ppc64le as a component of Red Hat Advanced Cluster Management for Kubernetes 2.16; registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:1d39ba3250bcfb1ba9153a64e7eda0f0aa733c417e35a3f8202a6d3791c453da_arm64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.16; registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:3bed4eb86c9c022da62180a4261b1b0046d21a5a67441c66e25352d0b0aa5c58_amd64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.16; registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:90e1cfc9386d1a74571275becff25d7ed42815e2e56af4f3e3debb820606f4b2_s390x as a component of Red Hat Advanced Cluster Management for Kubernetes 2.16; registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:2151e84880cedc278374fd20f6b856909a92ddd0222b4f3f119794443af954b5_s390x as a component of Red Hat Advanced Cluster Management for Kubernetes 2.17; registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:e0a4e82f5a12accf497d70ed8cef939c6f29c28c2783c0f15a5f4bdde208dc55_ppc64le as a component of Red Hat Advanced Cluster Management for Kubernetes 2.17; registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:e773bf67493fe7eedb5836e2dfe1f074488dae488cb4d0232af3f8d620aaa597_arm64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.17; registry.redhat.io/rhacm2/cluster-backup-rhel9-operator@sha256:eef0d20da49a60311e4375e8640b9113b2eb7ce061fca877542a9d200be6599d_amd64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.17
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.