PatchSiren cyber security CVE debrief
CVE-2026-59763 Gitea CVE debrief
The CVE-2026-59763 vulnerability involves unbounded Arch package file metadata, which can cause resource amplification in Gitea package uploads. This issue has a CVSS score of 4.3 and is classified as MEDIUM severity. Gitea users and administrators should review package upload configurations to validate Arch package file metadata handling, implement compensating controls to monitor and limit resource usage during package uploads, and verify Gitea instance inventory to apply any available vendor remediation. The goal is to ensure that all relevant teams are aware of the vulnerability and are taking appropriate actions to mitigate its impact, including reviewing and validating package upload configurations, implementing compensating controls, and verifying Gitea instance inventory. Teams should prioritize reviewing and validating Arch package file metadata handling to prevent resource amplification attacks. Limited details are provided in the source corpus, so evidence grounding and source-confidence limits should be considered. Security teams should track exceptions, retest remediated assets, and close the item only after evidence is documented. Vulnerability management teams should plan vendor-supported updates or mitigations through normal change control where exposure is confirmed. Operators should check relevant monitoring, detection, and logs for exposed assets that need extra review. Platform teams should verify Gitea instance inventory and apply any available vendor remediation. Compensating controls should be reviewed for exposed systems while remediation is scheduled and verified. Asset inventory teams should confirm whether affected product deployments exist in managed environments and assign an owner for follow-up. Source tracking should be implemented to monitor for any new information related to this vulnerability. Monitoring and detection teams should review relevant logs and implement additional monitoring if necessary. Rollback and change window management teams should plan for potential rollbacks or changes to address this vulnerability.
- Vendor
- Gitea
- Product
- Gitea Open Source Git Server
- CVSS
- MEDIUM 4.3
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-08-13
- Original CVE updated
- 2026-08-26
- Advisory published
- 2026-08-13
- Advisory updated
- 2026-08-26
Who should care
Gitea users and administrators should be aware of this vulnerability and take steps to review and validate package upload configurations. They should prioritize reviewing package upload configurations and validating Arch package file metadata handling. Security teams should track exceptions, retest remediated assets, and close the item only after evidence is documented. Vulnerability management teams should plan vendor-supported updates or mitigations through normal change control where exposure is confirmed. Operators should check relevant monitoring, detection, and logs for exposed assets that need extra review. Platform teams should verify Gitea instance inventory and apply any available vendor remediation. Compensating controls should be reviewed for exposed systems while remediation is scheduled and verified. Asset inventory teams should confirm whether affected product deployments exist in managed environments and assign an owner for follow-up. Source tracking should be implemented to monitor for any new information related to this vulnerability. Monitoring and detection teams should review relevant logs and implement additional monitoring if necessary. Rollback and change window management teams should plan for potential rollbacks or changes to address this vulnerability. This should be done while ensuring that security and operational impacts are considered. The goal is to ensure that all relevant teams are aware of the vulnerability and are taking appropriate actions to mitigate its impact. This includes reviewing and validating package upload configurations, implementing compensating controls, and verifying Gitea instance inventory. Teams should also prioritize reviewing and validating Arch package file metadata handling to prevent resource amplification attacks. By taking these steps, Gitea users and administrators can reduce the risk associated with this vulnerability and protect their systems from potential attacks. This requires a coordinated effort from various teams, including security, operations, and IT, to ensure that all necessary measures are taken to mitigate the vulnerability. The vulnerability management team should also review the CVE-6-
Technical summary
The CVE record indicates unbounded Arch package file metadata can cause resource amplification in Gitea package uploads. The vulnerability has a CVSS score of 4.3 and severity MEDIUM. The CVSS vector is CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L. Gitea users should review package upload configurations to validate Arch package file metadata handling and implement compensating controls to monitor and limit resource usage during package uploads.
Defensive priority
Gitea users should prioritize reviewing package upload configurations and validating Arch package file metadata handling.
Recommended defensive actions
- Review Gitea package upload configurations to validate Arch package file metadata handling
- Implement compensating controls to monitor and limit resource usage during package uploads
- Verify Gitea instance inventory and apply any available vendor remediation
- Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
- Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
- Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
- Track exceptions, retest remediated assets, and close the item only after evidence is documented
Evidence notes
The CVE record indicates unbounded Arch package file metadata can cause resource amplification in Gitea package uploads, with a CVSS score of 4.3 and severity MEDIUM. Limited details are provided in the source corpus. Gitea users should verify package upload configurations and validate Arch package file metadata handling with evidence grounding and source-confidence limits.
Sources and references
Verified primary and authoritative sources
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CVE-2026-59763 CVE Program record
Publisher, destination, and source semantics verified
URL: https://www.cve.org/CVERecord?id=CVE-2026-59763
CVE Program - Official CVE Program record with source-provided CVE metadata.
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CVE-2026-59763 NVD vulnerability detail
Publisher, destination, and source semantics verified
URL: https://nvd.nist.gov/vuln/detail/CVE-2026-59763
NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.
Supplemental references
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Source reference
Unverified legacy reference
URL: https://blog.gitea.com/gitea-1.27.0-is-released/
88ee5874-cf24-4952-aea0-31affedb7ff2
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Source reference
Unverified legacy reference
URL: https://github.com/go-gitea/gitea/releases/tag/v1.27.0
88ee5874-cf24-4952-aea0-31affedb7ff2
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Source reference
Unverified legacy reference
URL: https://github.com/go-gitea/gitea/security/advisories/GHSA-9mq6-mqjj-c2c5
88ee5874-cf24-4952-aea0-31affedb7ff2
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.