Medium [CVE-2026-58428] Attachment allowlist bypass via web release edit form
This medium-severity Red Hat Linux advisory covers CVE-2026-58428.
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Summary
Release attachment extension allowlist bypass via web release edit form (variant of CVE-2025-68939) A flaw was found in Gitea. This vulnerability allows the attacker to rename existing release attachments to forbidden file extensions, potentially leading to the distribution of malicious files or stored Cross-Site Scripting (XSS) attacks.
The vulnerability, a Moderate attachment allowlist bypass in Gitea, allows an authenticated attacker to upload files with forbidden extensions by manipulating the web release edit form. However, Red Hat products are not affected by this flaw as the vulnerable code from routers/web/repo/release.go is not present in shipped components.
Red Hat severity: Moderate — CVSS 6.5 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N). Weakness: CWE-434.
Red Hat lists OpenShift Pipelines as not affected.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 16 days ago·verify at source
Mitigation checklist
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Official advisory · high-confidence parse· fetched 16 days ago·verify at source
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