CVE-2026-31804Public exploitNetwork attack vector

Unauthenticated SSRF via unrestricted image proxy URL

Published Mar 30, 2026 · Updated Mar 30, 2026

SSRF in Tautulli before 2.17.0 allows remote attackers to make Plex Media Server probe attacker-selected HTTP URLs. Unauthenticated /pms_image_proxy requests pass an img value beginning with http to Plex's /photo/:/transcode URL parameter without a scheme or host restriction. Exploitation requires a configured Plex connection and yields blind internal service discovery and Plex version disclosure rather than response-body access.

CVSS severity4.0
Medium
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in Tautulli before 2.17.0 allows remote attackers to make Plex Media Server probe attacker-selected HTTP URLs. Unauthenticated /pms_image_proxy requests pass an img value beginning with http to Plex's /photo/:/transcode URL parameter without a scheme or host restriction. Exploitation requires a configured Plex connection and yields blind internal service discovery and Plex version disclosure rather than response-body access.

The record

CVE
CVE-2026-31804
Published
Mar 30, 2026
Updated
Mar 30, 2026
Vendor
Tautulli
Product
Tautulli
Classifications
CWE-918, T1046
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 30, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 30, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2.17.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Tautulli · Tautulliversion=< 2.17.0

Published CVSS scores

4.0GitHub, Inc.CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1046Network Service Discovery

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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