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Back to active CVEs
Medium · CVSS 5.4CVE-2026-117471

User-controlled Duo host permits authenticated SSRF in Psono ServerCVE-2026-117471

Answer in brief

CVE-2026-117471 records a Medium severity (CVSS 5.4) vulnerability in User-controlled Duo host permits authenticated SSRF in Psono Server. The current sources do not mark it as known exploited. The current feed maps esaqa GmbH/Psono (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 27, 2026Updated Oct 27, 2026Source checked Oct 27, 2026First seen by HOL Oct 27, 2026Material review Oct 27, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 5.4
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 5.4. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps esaqa GmbH/Psono (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
esaqa GmbH/Psonogeneric>=0.1.0 <7.2.47.2.4

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for esaqa GmbH/Psono.
  2. 2Review the reported fix. Source-reported solution: Upgrade to Psono Server 7.2.4 or later.

Evidence timeline and material changes

  1. Published upstream

    Oct 27, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 27, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 27, 2026

Sources and claim methodology

  • Source referencegitlab.com
  • Source referencegitlab.com
  • Source referencegitlab.com
  • Source referencegitlab.com
  • Source referencegitlab.com
Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Device-code claim permits restricted token escalation in Psono ServerSame esaqa gmbh/psono package
  • File-transfer type confusion permits unauthorized repository writes in Psono ServerSame esaqa gmbh/psono package
  • WebAuthn assertion replay permits second-factor bypass in Psono ServerSame esaqa gmbh/psono package
  • URL prefix handling permits API key read-scope bypass in Psono ServerSame esaqa gmbh/psono package
  • YesWiki before 4.7.0 Authenticated SSRF via Page Duplication API downloadFileAlso CWE-918
  • YesWiki before 4.7.0 SSRF via copyUrlToLocalFile in Bazar CSV ImportAlso CWE-918

Record context

Vulnerability class
SSRF
EPSS
Not reported
CWE IDs
CWE-918
Source
CVE List V5
Source checked
Oct 27, 2026
References
5 linked sources
Open source record