Loading...
Skip to main content
GeekWala

CVE-2026-27771

HIGH

Gitea has insufficient permission checks for Composer package source links

Published July 17, 2026Updated July 22, 2026Source: osv

Summary

### CVE Description Gitea versions up to and including 1.26.1 have insufficient permission checks for Composer package source links, which can expose private or internal package source information. ### Summary A critical vulnerability has been discovered in Gitea. It was already reported via (security@gitea.io) from (dev@noscope.com), and submitted an encrypted report.

Remediation

Upgrade to the fixed version using your package manager.

Go
Update code.gitea.io/gitea to 1.26.2 or later
go get code.gitea.io/gitea@v1.26.2

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

PackageEcosystemAffectedFixed In
code.gitea.io/gitea
go
All versions1.26.2

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-862
    Missing AuthorizationMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 8.2 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
None

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

References

Frequently Asked Questions

What is CVE-2026-27771?
Gitea has insufficient permission checks for Composer package source links This vulnerability has been assigned a severity rating of HIGH (CVSS score: 8.2/10).
How do I check if my project is affected by CVE-2026-27771?
CVE-2026-27771 affects code.gitea.io/gitea. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-27771 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
8.2

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

GHSA-8qw8-rq86-9pc2
GO-2026-6017

Related CVEs

  • CVE-2026-22874
    CRITICAL

    Gitea: Incomplete SSRF Protection in Webhook and Migration Allow-list Default Filter

  • CVE-2019-11576
    CRITICAL

    Gitea Allows 1FA Even for 2FA-Enrolled Accounts

  • CVE-2026-20896
    CRITICAL

    Gitea Docker image: `REVERSE_PROXY_TRUSTED_PROXIES = *` default lets any source IP impersonate any user via `X-WEBAUTH-USER`

  • CVE-2026-58426
    CRITICAL

    Gitea Actions Artifacts V4 signed URL HMAC ambiguity allows cross-repository artifact read and cross-task upload-state write

  • CVE-2026-56750
    CRITICAL

    Gitea Remember-Me Token Theft Not Invalidating Attacker Session

  • CVE-2026-58443
    CRITICAL

    Gitea: Public-only repository tokens can update private PR head branches

  • CVE-2026-28737
    HIGH

    Gitea: Stored XSS via glTF `extensionsRequired` in Gitea 3D File Viewer

  • CVE-2026-26231
    HIGH

    Gitea: Authorization Bypass via "Allow edits from maintainers" allows unauthorized commits to any readable repo

Check if you're affected

Scan your dependencies to see if this vulnerability affects your projects.

Scan Your Dependencies