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CVE Record

CVE-2026-15143: Guardrails-detectors: guardrails-detectors: ssrf and local file read via user-supplied xml schema (xml-with-schema:)

A flaw was found in the file_type content detector of guardrails-detectors. This vulnerability allows a remote attacker to supply an arbitrary XML Schema Definition (XSD) string, which is processed without proper restrictions. This can lead to server-side requests to arbitrary URLs or local file reads, potentially resulting in sensitive information disclosure, such as cloud provider credentials or access to internal network services.

CriticalCVSS 9.3Not KEV-listedUpdated
Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

CVE-2026-15143 is a critical flaw in guardrails-detectors used with Red Hat OpenShift AI packages. An attacker may supply a malicious XML schema that causes the service to read local files or make server-side requests, risking exposure of sensitive data such as cloud credentials or internal service responses.

Executive priority

Treat this as urgent for any RHOAI environment processing untrusted content. The main business risk is sensitive data disclosure from cloud credentials or internal services, not service outage. Prioritize exposure review and vendor remediation tracking.

Technical view

The file_type content detector processes user-supplied XSD content without adequate restrictions. The published CVSS 3.1 score is 9.3 with network, low-complexity, unauthenticated, no-user-interaction attack conditions, changed scope, high confidentiality impact, and low integrity impact. The listed weakness is CWE-918.

Likely exposure

Exposure is most likely in Red Hat OpenShift AI deployments using the affected rhoai/odh-built-in-detector-rhel9 or rhoai/odh-guardrails-detector-huggingface-runtime-rhel9 packages where untrusted detector input can reach XML schema handling.

Exploitation context

The source bundle does not show CISA KEV listing or confirmed active exploitation. The CVSS vector indicates remote unauthenticated exploitation is plausible, but no public exploit status or weaponized technique is provided in the sources.

Researcher notes

Evidence is limited to the provided CVE, Red Hat references, and CVSS data. No fixed versions, patches, or official workarounds are included in the bundle. Avoid assuming broader guardrails-detectors distribution impact beyond the listed Red Hat packages.

Mitigation direction

  • Check Red Hat CVE and Bugzilla pages for official fixes or workarounds.
  • Update affected Red Hat OpenShift AI detector images when vendor-fixed builds are available.
  • Limit exposure of services that accept untrusted detector input.
  • Apply restrictive egress controls around detector workloads where operationally feasible.
  • Review secrets placement to reduce impact of local file disclosure.

Validation and detection

  • Inventory RHOAI deployments for the two affected detector package names.
  • Identify routes or services that pass untrusted content to file_type detection.
  • Check whether xml-with-schema handling is enabled or reachable.
  • Review workload logs for unusual outbound requests or sensitive file access indicators.
  • Track Red Hat advisory status for corrected package versions.
Prepared
Confidence
medium
Sources
4

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-918: Information exposure and cloud metadata lookup

Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Cloud metadata behavior lookup

The CVE wording references SSRF or metadata access, so cloud discovery and credential material review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-15143 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Critical
CVSS
9.3 (3.1)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
5Timeline events
1ADP providers
3Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: yesTechnical Impact: partial

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
9.3CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N3.94.7redhat

Vulnerability scoring details

Base CVSS 3.1 score

9.3Critical
CVSS 3.1 vector shape for CVE-2026-15143Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. Source timelineredhat

    Reported to Red Hat.

  2. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  3. Source timelineredhat

    Made public.

  4. CVE publishedCVE Program

    The CVE record was published.

  5. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Red HatRed Hat OpenShift AI (RHOAI)rhoai/odh-built-in-detector-rhel9affected
Red HatRed Hat OpenShift AI (RHOAI)rhoai/odh-guardrails-detector-huggingface-runtime-rhel9affected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-918 · source CWE mapping

Server-Side Request Forgery (SSRF)

Server-Side Request Forgery (SSRF) represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.