CVE-2026-60018 Gitea CVE debrief

Who should care

Defenders responsible for Gitea instances, especially those using the OneDev migration feature, should assess their exposure and take necessary actions to prevent potential abuse. This includes verifying if their instance is using a vulnerable version, restricting access to the migration feature, and monitoring system resources for signs of abuse. Gitea instance administrators should prioritize verifying exposure and assessing the impact of this on their

Why it matters

Defenders should care about CVE-2026-60018 because it allows an authenticated user to direct a repository migration to an attacker-controlled server, potentially causing a denial-of-service attack. Gitea instance administrators should verify exposure, assess the impact, and take necessary actions to prevent abuse.

• Memory consumption and potential service impairment due to oversized or never-ending responses.
• Denial-of-service attacks against Gitea instances using the OneDev migration feature.
• Potential for attackers to exploit this vulnerability to disrupt service availability.

Technical summary

The Gitea OneDev migration downloader reads the entire remote version response into memory without a size limit and uses a client without a timeout. An authenticated user can direct a repository migration to an attacker-controlled OneDev-compatible server, which can return an oversized or never-ending response, consuming memory and impairing service availability. This vulnerability is particularly concerning for Gitea instances with publicly accessible migration functionality, as it could allow an attacker to disrupt service availability.

Defensive priority

Defenders should prioritize verifying exposure and assessing the impact of this vulnerability on their systems, especially if they use Gitea's OneDev migration feature.

Recommended defensive actions

• Verify if the Gitea instance is using a version prior to 1.27.3 and update to 1.27.3 or later if necessary.
• Restrict access to the OneDev migration feature to trusted users and networks.
• Monitor system resources and migration worker activity for signs of potential abuse.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

The CVE record and source item provide details about the vulnerability, including its description and affected versions. However, the CVSS score and severity are not provided. The vulnerability is confirmed to exist in Gitea versions prior to 1.27.3. Defenders should verify if their Gitea instance is using a vulnerable version and update to 1.27.3 or later if necessary. The CVE Program record and NVD detail page offer additional information about the vulnerability.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.