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CVE-2026-52798

8.9 · HIGH

Gogs is an open source self-hosted Git service.

Published Jun 24, 2026CWE-79EPSS 0.43%

Overview

CVE-2026-52798 is a high-severity vulnerability. It was published on June 24, 2026 and has a CVSS 3.1 base score of 8.9 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.9, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Gogs is an open source self-hosted Git service. Prior to 0.14.3, although .ipynb previews are sanitized on the server side via /-/api/sanitize_ipynb, the inserted content is re-rendered on the client side without sanitization using marked() on elements with the .nb-markdown-cell class. During this process, links containing schemes such as javascript: can be regenerated. As a result, when a victim views an attacker-crafted .ipynb file and clicks the link, arbitrary JavaScript is executed in the Gogs origin, leading to a click-based Stored XSS. This vulnerability is fixed in 0.14.3.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/gogs/gogs/commit/17b168b11ca759a7550e1f4bbd68bbde14db7785GitHubgithub.com/gogs/gogs/pull/8319GitHubgithub.com/gogs/gogs/releases/tag/v0.14.3GitHubgithub.com/gogs/gogs/security/advisories/GHSA-jq8v-rmf6-65jwGitHubgithub.com/gogs/gogs/security/advisories/GHSA-jq8v-rmf6-65jw

How CyberStrike helps

Frequently asked questions

What is CVE-2026-52798?

CVE-2026-52798 is a high-severity vulnerability. It was published on June 24, 2026 and has a CVSS 3.1 base score of 8.9 (HIGH).

How severe is CVE-2026-52798?

This vulnerability has a CVSS 3.1 base score of 8.9, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-52798?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-52798?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-52798 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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