How severe is CVE-2026-5535?

CVE-2026-5535 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-5535 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-5535?

CVE-2026-5535 affects Tensoropera Fedml. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-5535?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-5535 have an EU (EUVD) identifier?

Yes. CVE-2026-5535 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19017.

When was CVE-2026-5535 published?

CVE-2026-5535 was published on 2026-04-05 and last updated on 2026-06-17.

CVE-2026-5535

CVE-2026-5535 is a medium-severity vulnerability in Tensoropera Fedml with a CVSS 3.x base score of 4.3. 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-22.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 4.0
CVSS v4: 2.1
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-19017
Weakness: CWE-22
Affected product: Tensoropera Fedml
Published: 2026-04-05
Last modified: 2026-06-17

Description

A security flaw has been discovered in FedML-AI FedML up to 0.8.9. This impacts an unknown function of the file FileUtils.java of the component MQTT Message Handler. Performing a manipulation of the argument dataSet results in path traversal. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Frequently asked questions

What is CVE-2026-5535?: A security flaw has been discovered in FedML-AI FedML up to 0.8.9. This impacts an unknown function of the file FileUtils.java of the component MQTT Message Handler. Performing a manipulation of the argument dataSet results in path traversal. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
How severe is CVE-2026-5535?: CVE-2026-5535 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-5535 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-5535?: CVE-2026-5535 affects Tensoropera Fedml. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-5535?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-5535 have an EU (EUVD) identifier?: Yes. CVE-2026-5535 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19017.
When was CVE-2026-5535 published?: CVE-2026-5535 was published on 2026-04-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:tensoropera:fedml:*:*:*:*:*:*:*:*

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