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CVE-2026-117471

User-controlled Duo host permits authenticated SSRF in Psono Server

CVSS score

5.4

EPSS probability

—

Risk score

0.5

Published

5 h ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Official patch verified

Etkilenen ürün ve sürüm için yayımlanan güvenlik güncellemesini uygulayın.

Impact on My Inventory

Only the personal products you have added to your account are assessed; an organisation's inventory does not appear here.

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Vulnerability description

DayBreach AI Explanation

Verified against sources

Authenticated SSRF Vulnerability in Psono Server

Sources read

2

Source agreement

Tam uyum

Evidence confidence

%63

Short explanation

Psono Server CE and EE versions 0.1.0 through 7.2.3 accept a user-controlled host when configuring a personal Duo device, leading to server-side request forgery (SSRF) without an allowlist or explicit timeout.

Why does it matter?

An authenticated remote attacker can abuse this flaw as an internal DNS and service-reachability oracle. Unresponsive targets can also occupy server workers until the operating system timeout occurs.

What should be done?

  • Update Psono Server to a secure version
  • Apply the vendor advisory and patch references provided
  • Verify personal Duo device configuration inputs
Chain of evidence and sources2 verified claims

Psono Server CE ve EE 0.1.0 ile 7.2.3 sürümleri, kullanıcı kontrollü Duo ana bilgisayar girdilerini izin listesi olmadan kabul eder.

S0 · daybreach-canonicalS1 · cvelist

Kimliği doğrulanmış bir saldırgan, HTTPS port 443 üzerinden bağlantı kurarak servis erişilebilirliği kehaneti oluşturabilir.

S0 · daybreach-canonicalS2 · nvd
Show the technical text from the sources

Psono Server CE && EE versions 0.1.0 through 7.2.3 accepted a user-controlled host when configuring a personal Duo device and passed it to the Duo client without an allowlist or explicit timeout. An authenticated remote attacker could cause the server to connect to selected hosts over HTTPS on port 443 and distinguish failure modes, providing an internal DNS and service-reachability oracle. Connections still required TLS certificate validation, and the flaw did not provide arbitrary protocol or port access. Unresponsive targets could also occupy a server worker until the operating-system timeout.

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

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-2026-117471 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1esaqa GmbHPsono View
Total affected vendors: 1|Products: 1

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
5.4CVSS V3_1MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:LCVE CNA
5.4CVSS V31MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:LNVD

Patch and Remediation Guide

Solution & Remediation Advisory

Patch verified

2 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

cvelist

CNA çözüm referansı

Open source
reference

Yama veya çözüm referansı

Open source
Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Apply the official update named in the evidence only to the matching product and version.
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-2026-117471 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-2026-117471 weaknesses.

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

Attack Vector and Accessibility

ExposureAğ üzerinden
PermissionsLow
UserGerekmiyor

Official Sources and Advisories

Vendor security advisory for CVE-2026-117471vendor-advisoryhttps://gitlab.com/esaqa/psono/psono-server/-/blob/v7.2.3/psono/restapi/serializers/new_duo.pyvendor-advisoryhttps://gitlab.com/esaqa/psono/psono-server/-/commit/4059830475744791f3d3a1daa4e1603aea5549edpatchhttps://gitlab.com/esaqa/psono/psono-server/-/releases/v7.2.4vendor-advisoryhttps://gitlab.com/esaqa/psono/psono-servervendor-advisory

CVSS Vector Radar Chart

5.4 / 10
Attack VectorNetworkComplexityLowPrivilegesLowUser Interact.NoneConfidentialityLowIntegrityNoneAvailabilityLow

Vulnerability Scoring Details

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

Yama doğrulandı

2 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

Follow the vendor

EG
esaqa GmbH logo
esaqa GmbH

Weakness Type (CWE & CAPEC)

CWE-918

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CVE-2026-117471 · User-controlled Duo host permits…