How severe is CVE-2023-0957?

CVE-2023-0957 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability low.

Is CVE-2023-0957 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-0957?

CVE-2023-0957 affects Gitpod. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-0957?

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-2023-0957 published?

CVE-2023-0957 was published on 2023-03-03 and last updated on 2026-06-17.

CVE-2023-0957

CVE-2023-0957 is a high-severity vulnerability in Gitpod with a CVSS 3.x base score of 8.2. 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-346.

Key facts

Severity: High (CVSS 3.x base score 8.2)
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-346
Affected product: Gitpod
Published: 2023-03-03
Last modified: 2026-06-17

Description

An issue was discovered in Gitpod versions prior to release-2022.11.2.16. There is a Cross-Site WebSocket Hijacking (CSWSH) vulnerability that allows attackers to make WebSocket connections to the Gitpod JSONRPC server using a victim’s credentials, because the Origin header is not restricted. This can lead to the extraction of data from workspaces, to a full takeover of the workspace.

Frequently asked questions

What is CVE-2023-0957?: An issue was discovered in Gitpod versions prior to release-2022.11.2.16. There is a Cross-Site WebSocket Hijacking (CSWSH) vulnerability that allows attackers to make WebSocket connections to the Gitpod JSONRPC server using a victim’s credentials, because the Origin header is not restricted. This can lead to the extraction of data from workspaces, to a full takeover of the workspace.
How severe is CVE-2023-0957?: CVE-2023-0957 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability low.
Is CVE-2023-0957 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-0957?: CVE-2023-0957 affects Gitpod. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-0957?: 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-2023-0957 published?: CVE-2023-0957 was published on 2023-03-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:gitpod:gitpod:*:*:*:*:*:*:*:*

More vulnerabilities in Gitpod

CVE-2023-32766 — Medium (CVSS 6.1): Gitpod before 2022.11.3 allows XSS because redirection can occur for some protocols outside of the trusted set of three…
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Other CWE-346 vulnerabilities

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