How severe is CVE-2020-26763?

CVE-2020-26763 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 none, integrity high, and availability none.

Is CVE-2020-26763 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-26763?

CVE-2020-26763 affects Rocket.chat. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-26763?

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-2020-26763 published?

CVE-2020-26763 was published on 2021-07-05 and last updated on 2026-06-17.

CVE-2020-26763

CVE-2020-26763 is a high-severity vulnerability in Rocket.chat 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.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Rocket.chat
Published: 2021-07-05
Last modified: 2026-06-17

Description

The Rocket.Chat desktop application 2.17.11 opens external links without user interaction.

Frequently asked questions

What is CVE-2020-26763?: The Rocket.Chat desktop application 2.17.11 opens external links without user interaction.
How severe is CVE-2020-26763?: CVE-2020-26763 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 none, integrity high, and availability none.
Is CVE-2020-26763 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-26763?: CVE-2020-26763 affects Rocket.chat. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-26763?: 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-2020-26763 published?: CVE-2020-26763 was published on 2021-07-05 and last updated on 2026-06-17.

References

https://github.com/RocketChat/Rocket.Chat.Electron/pull/1710

Affected products (1)

cpe:2.3:a:rocket.chat:rocket.chat:2.17.11:*:*:*:*:electron:*:*

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