CVE-2026-32275Public exploitNetwork attack vector

API key theft via unsanitized JSONP callback

Published Mar 30, 2026 · Updated Mar 30, 2026

Cross-site scripting in the Tautulli API 1.3.10 through 2.16.1 allows remote attackers to steal an API key through a crafted webpage. In plexpy/api2.py, the response builder concatenates callback directly before JSON output while marking the result as application/javascript, without validating it as a JavaScript identifier. Exploitation requires a browser to load a crafted cross-origin script; arbitrary script injection affects all installs, while API-key disclosure requires no HTTP password.

CVSS severity7.4
High
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in the Tautulli API 1.3.10 through 2.16.1 allows remote attackers to steal an API key through a crafted webpage. In plexpy/api2.py, the response builder concatenates callback directly before JSON output while marking the result as application/javascript, without validating it as a JavaScript identifier. Exploitation requires a browser to load a crafted cross-origin script; arbitrary script injection affects all installs, while API-key disclosure requires no HTTP password.

The record

CVE
CVE-2026-32275
Published
Mar 30, 2026
Updated
Mar 30, 2026
Vendor
Tautulli
Product
Tautulli
Classifications
CWE-79, CAPEC-591, T1189
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=>= 1.3.10, < 2.17.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Tautulli · Tautulliversion=>= 1.3.10, < 2.17.0

Published CVSS scores

9.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
7.4GitHub, Inc.CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA: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-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-591Reflected XSS
T1189Drive-by Compromise

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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