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CVE-2026-13303

Boundary vulnerable to server-side request forgery in Vault credential store

CVSS score

8.7

EPSS probability

—

Risk score

0.9

Published

43 min ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Patch status has not yet been verified

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Vulnerability description

DayBreach AI Explanation

Verified against sources

CVE-2026-13303 HashiCorp Boundary SSRF Vulnerability

Sources read

1

Source agreement

Tam uyum

Evidence confidence

%55

Short explanation

HashiCorp Boundary and Boundary Enterprise contain a server-side request forgery vulnerability in the Vault credential store integration. An authenticated user can cause the Boundary controller to issue outbound requests to chosen network destinations.

Why does it matter?

This vulnerability may expose endpoints reachable only from the controller host, such as cloud instance metadata services, potentially leading to unauthorized data exposure.

What should be done?

  • Upgrade Boundary Enterprise to version 1.0.2 or 0.21.6
  • Follow vendor advisories
  • Review administrative permissions
Chain of evidence and sources2 verified claims

HashiCorp Boundary ve Boundary Enterprise, Vault kimlik bilgisi deposu entegrasyonunda SSRF zafiyetinden etkilenmektedir.

S0 · daybreach-canonicalS1 · cvelist

Zafiyet CVE-2026-13303, Boundary Enterprise 1.0.2 ve 0.21.6 sürümlerinde giderilmiştir.

S0 · daybreach-canonicalS1 · cvelist
Show the technical text from the sources

HashiCorp Boundary and Boundary Enterprise are vulnerable to a server-side request forgery in the Vault credential store integration that may allow an authenticated user with permission to manage credential stores and credential libraries within a project to cause the Boundary controller to issue outbound requests to a network destination of the requester's choosing and to receive the response. This may expose endpoints reachable only from the controller's host, such as a cloud instance metadata service. This vulnerability, CVE-2026-13303, is fixed in Boundary Enterprise 1.0.2 and 0.21.6.

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

CWE: CWE-918

This explanation was compiled automatically from the source records. Scores, active exploitation, patch and exploit status come straight from the sources.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-13303 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1hashicorpBoundary View
2hashicorpBoundary Enterprise View
Total affected vendors: 1|Products: 2

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
8.7CVSS V3_1HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:NCVE CNA
8.7CVSS V31HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:NNVD

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-13303 is associated with the following CWEs:

CWE-918: Server-Side Request Forgery (SSRF)

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-13303 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden
PermissionsHigh
UserGerekmiyor

Official Sources and Advisories

https://discuss.hashicorp.com/t/hcsec-2026-54-boundary-vulnerable-to-server-side-request-forgery-in-vault-credential-store/77932vendor-advisory

CVSS Vector Radar Chart

8.7 / 10
Attack VectorNetworkComplexityLowPrivilegesHighUser Interact.NoneConfidentialityLowIntegrityNoneAvailabilityNone

Vulnerability Scoring Details

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredHigh privileges
User InteractionNone required
Confidentiality (Gizlilik)Low
Integrity (Bütünlük)None
Availability (Erişilebilirlik)None

Yama durumu bilinmiyor

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

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Weakness Type (CWE & CAPEC)

CWE-918

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CVE-2026-13303 · Boundary vulnerable to server-side request…