How severe is CVE-2021-40527?

CVE-2021-40527 has a CVSS 3.x base score of 8.6, 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 low, and availability low.

Is CVE-2021-40527 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-40527?

CVE-2021-40527 affects Onepeloton Peloton. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-40527?

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.

When was CVE-2021-40527 published?

CVE-2021-40527 was published on 2021-10-25 and last updated on 2026-06-17.

CVE-2021-40527

CVE-2021-40527 is a high-severity vulnerability in Onepeloton Peloton with a CVSS 3.x base score of 8.6. 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-312.

Key facts

Severity: High (CVSS 3.x base score 8.6)
CVSS v2: 5.0
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-312
Affected product: Onepeloton Peloton
Published: 2021-10-25
Last modified: 2026-06-17

Description

Exposure of senstive information to an unauthorised actor in the "com.onepeloton.erlich" mobile application up to and including version 1.7.22 allows a remote attacker to access developer files stored in an AWS S3 bucket, by reading credentials stored in plain text within the mobile application.

Frequently asked questions

What is CVE-2021-40527?: Exposure of senstive information to an unauthorised actor in the "com.onepeloton.erlich" mobile application up to and including version 1.7.22 allows a remote attacker to access developer files stored in an AWS S3 bucket, by reading credentials stored in plain text within the mobile application.
How severe is CVE-2021-40527?: CVE-2021-40527 has a CVSS 3.x base score of 8.6, 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 low, and availability low.
Is CVE-2021-40527 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-40527?: CVE-2021-40527 affects Onepeloton Peloton. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-40527?: 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.
When was CVE-2021-40527 published?: CVE-2021-40527 was published on 2021-10-25 and last updated on 2026-06-17.

References

https://twitter.com/ROPsicle/status/1438216078103044107?s=20

Affected products (1)

cpe:2.3:a:onepeloton:peloton:*:*:*:*:*:android:*:*

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