CVE•Published 2026-01-22•Modified 2026-07-15•1 article on news•4 live references•NVD data

CVE-2026-20912Gitea · Gitea

Vulnerability data via NVD (ingested)

CVSS v3.1

9.1

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS percentile

Exploit Prediction Scoring System · top 67% of all CVEs

Weaknesses (CWE)

CWE-284Improper Access Control CWE-639Authorization Bypass Through User-Controlled Key CWE-283Unverified Ownership

Description

Gitea does not properly validate repository ownership when linking attachments to releases. An attachment uploaded to a private repository could potentially be linked to a release in a different public repository, making it accessible to unauthorized users.

Timeline

Published 2026-01-22

Modified 2026-07-15

External references

NVD MITRE Exploit-DB VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag5,052 hosts

vuln:CVE-2026-20912

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Gitea Gitea"

All exposed Gitea Gitea instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Gitea"

HTTP body or banner mentions "Gitea" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-20912