How severe is CVE-2020-8902?

CVE-2020-8902 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2020-8902 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-8902?

CVE-2020-8902 affects Google Rendertron. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-8902?

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

When was CVE-2020-8902 published?

CVE-2020-8902 was published on 2021-02-23 and last updated on 2026-06-17.

CVE-2020-8902

CVE-2020-8902 is a low-severity vulnerability in Google Rendertron with a CVSS 3.x base score of 3.5. 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-918.

Key facts

Severity: Low (CVSS 3.x base score 3.5)
CVSS v2: 4.0
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-918
Affected product: Google Rendertron
Published: 2021-02-23
Last modified: 2026-06-17

Description

Rendertron versions prior to 3.0.0 are are susceptible to a Server-Side Request Forgery (SSRF) attack. An attacker can use a specially crafted webpage to force a rendertron headless chrome process to render internal sites it has access to, and display it as a screenshot. Suggested mitigations are to upgrade your rendertron to version 3.0.0, or, if you cannot update, to secure the infrastructure to limit the headless chrome's access to your internal domain.

Frequently asked questions

What is CVE-2020-8902?: Rendertron versions prior to 3.0.0 are are susceptible to a Server-Side Request Forgery (SSRF) attack. An attacker can use a specially crafted webpage to force a rendertron headless chrome process to render internal sites it has access to, and display it as a screenshot. Suggested mitigations are to upgrade your rendertron to version 3.0.0, or, if you cannot update, to secure the infrastructure to limit the headless chrome's access to your internal domain.
How severe is CVE-2020-8902?: CVE-2020-8902 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2020-8902 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-8902?: CVE-2020-8902 affects Google Rendertron. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-8902?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-8902 published?: CVE-2020-8902 was published on 2021-02-23 and last updated on 2026-06-17.

References

https://github.com/GoogleChrome/rendertron/releases/tag/3.0.0

Affected products (1)

cpe:2.3:a:google:rendertron:*:*:*:*:*:*:*:*

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