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CVE-2026-63021— Gitea Swift package manifest memory exhaustion

Quick assessment

Affected
Gitea Gitea
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Gitea 的 Swift 包解析器限制每个清单文件（manifest）的大小为 128 KiB，但未限制清单文件的数量及其在加载到内存前的总体大小。具有包发布权限的经过身份验证的用户可以上传一个高度压缩的归档文件，其中包含大量清单文件，从而导致分配的内存远超上传归档文件本身的大小。这可能会耗尽内存，导致进程终止，或引发请求失败。

AI Predicted 5.3 Difficulty: Moderate EPSS 0.55% · P45

Affected Version Matrix 1

VendorProduct Version RangeStatus
Gitea Gitea ≤ 1.27.2 affected
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I. Basic Information for CVE-2026-63021

Vulnerability Information
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Vulnerability Title
Gitea Swift package manifest memory exhaustion
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Gitea Gitea 0 ~ 1.27.2 -

II. Public POCs for CVE-2026-63021

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III. Intelligence Information for CVE-2026-63021

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Patches & Fixes for CVE-2026-63021 (2)

Other References for CVE-2026-63021 (2)

Other References for CVE-2026-63021 (1)

Same Patch Batch · Gitea · 2026-10-14 · 36 CVEs total

CVE-2026-68964 Gitea restricted-user SSH and GPG key metadata disclosure
CVE-2026-70407 Gitea organization listing token scope bypass
CVE-2026-70396 Gitea organization repository creation token scope bypass
CVE-2026-70406 Gitea private comparison disclosure with public-only tokens
CVE-2026-70400 Gitea private migration creation with public-only tokens
CVE-2026-70402 Gitea local code execution through writable Git hooks
CVE-2026-67577 Gitea restricted-user activity and heatmap disclosure
CVE-2026-63792 Gitea private reusable workflow disclosure to fork runs
CVE-2026-62925 Gitea Alpine package parsing memory exhaustion
CVE-2026-59774 Gitea Org-mode file disclosure and code execution
CVE-2026-68957 Gitea restricted-user issue search disclosure
CVE-2026-73814 Gitea repository ownership escalation by administrators
CVE-2026-73800 Gitea reusable workflow secret exposure in pull_request_target
CVE-2026-73535 Gitea second-factor bypass through OpenID identity linking
CVE-2026-73804 Gitea API token scope escalation through HTTP signatures
CVE-2026-73539 Gitea external renderer argument injection and code execution
CVE-2026-78231 Gitea blind SSRF through OpenID assertion verification
CVE-2026-78433 Gitea private attachment disclosure through repository mismatch
CVE-2026-73130 Gitea repository initialization resource exhaustion
CVE-2026-73802 Gitea Runner host isolation bypass through container options

Showing top 20 of 36 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Gitea
Same vendor: Gitea

V. Comments for CVE-2026-63021

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