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CVE-2026-110494— Gitea release attachment re-linking of issue attachments

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.

在为发布（release）添加附件时，系统会验证该附件所属的仓库及发布版本，但未检查该附件是否已关联到某个问题（issue）或评论。任何拥有仓库发布写入权限、且知晓该仓库内附件 UUID 的用户，均可将该附件关联到发布中。此漏洞导致附件的文件名、大小及下载次数通过发布页面暴露，并允许该用户重命名或删除该附件。

AI Predicted 5.3 Difficulty: Moderate

Affected Version Matrix 1

VendorProduct Version RangeStatus
Gitea Gitea ≤ 28.1.0 affected
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I. Basic Information for CVE-2026-110494

Vulnerability Information
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Vulnerability Title
Gitea release attachment re-linking of issue attachments
Source: CVE Program / CVE List V5
Vulnerability Description
Adding attachments to a release checked the repository and release of an attachment but not whether it was already linked to an issue or comment. A user with write access to the releases of a repository, who knew the UUID of an attachment in that repository, could link it to a release. This exposed the file name, size and download count of the attachment through the release and allowed the user to rename or delete it.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Gitea Gitea 0 ~ 28.1.0 -

II. Public POCs for CVE-2026-110494

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-110494

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Patches & Fixes for CVE-2026-110494 (2)

Vendor Advisories for CVE-2026-110494 (1)

Vendor Pages for CVE-2026-110494 (1)

Other References for CVE-2026-110494 (1)

Same Patch Batch · Gitea · 2026-10-18 · 12 CVEs total

CVE-2026-109553 Gitea SSH certificate principal impersonation of other users
CVE-2026-104627 Gitea OpenID account linking without session binding
CVE-2026-105661 Gitea panic on the repositories route of individual users
CVE-2026-105964 Gitea Actions artifact v4 API unbounded request body
CVE-2026-109844 Gitea watched repositories API disclosure after access revocation
CVE-2026-107618 Gitea cross-site request forgery on repository topics
CVE-2026-107686 Gitea reactions accepted on locked issues and comments
CVE-2026-110324 Gitea private profile information disclosure through POST request
CVE-2026-110311 Gitea draft release creation disclosing attachment metadata
CVE-2026-97204 Gitea label deletion across repository and organization IDs
CVE-2026-97859 Gitea API disclosure of private user social graph, keys and stars

IV. Related Vulnerabilities

Same product: Gitea
Same vendor: Gitea
Same weakness: CWE-639

V. Comments for CVE-2026-110494

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