How severe is CVE-2026-31831?

CVE-2026-31831 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-31831 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-31831?

CVE-2026-31831 affects Tautulli. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-31831?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-31831 have an EU (EUVD) identifier?

Yes. CVE-2026-31831 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17192.

When was CVE-2026-31831 published?

CVE-2026-31831 was published on 2026-03-30 and last updated on 2026-06-17.

CVE-2026-31831

CVE-2026-31831 is a high-severity vulnerability in Tautulli with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-23.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 8.7
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-17192
Weakness: CWE-23
Affected product: Tautulli
Published: 2026-03-30
Last modified: 2026-06-17

Description

Tautulli is a Python based monitoring and tracking tool for Plex Media Server. Prior to version 2.17.0, the /newsletter/image/images API endpoint is vulnerable to path traversal, allowing unauthenticated attackers to read arbitrary files from the application server's filesystem. This issue has been patched in version 2.17.0.

Frequently asked questions

What is CVE-2026-31831?: Tautulli is a Python based monitoring and tracking tool for Plex Media Server. Prior to version 2.17.0, the /newsletter/image/images API endpoint is vulnerable to path traversal, allowing unauthenticated attackers to read arbitrary files from the application server's filesystem. This issue has been patched in version 2.17.0.
How severe is CVE-2026-31831?: CVE-2026-31831 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-31831 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-31831?: CVE-2026-31831 affects Tautulli. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-31831?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-31831 have an EU (EUVD) identifier?: Yes. CVE-2026-31831 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17192.
When was CVE-2026-31831 published?: CVE-2026-31831 was published on 2026-03-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:tautulli:tautulli:*:*:*:*:*:*:*:*

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