CVE-2026-63021
Published:October 14, 2026
Updated:October 14, 2026
Gitea's Swift package parser limits each manifest to 128 KiB but does not limit the number of manifests or their aggregate size before reading them into memory. An authenticated user with package-publish permission can upload a highly compressed archive containing many manifests, causing allocations far larger than the uploaded archive. This can exhaust memory, terminate the process, or cause request failures.
Affected Packages
https://github.com/go-gitea/gitea.git (GITHUB):
Affected version(s) >=v1.20.1 <v1.27.3Fix Suggestion:
Update to version v1.27.3gitea.dev (GO):
Affected version(s) >=v1.20.1 <v1.27.3Fix Suggestion:
Update to version v1.27.3code.gitea.io/gitea (GO):
Affected version(s) >=v1.20.0-dev.0.20230320074223-ccd3a55bf4f0 <v1.27.3Fix Suggestion:
Update to version v1.27.3Related Resources (7)
Do you need more information?
Contact UsCVSS v4
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Uncontrolled Resource Consumption