SSRF in Forgejo
CVE-2026-82556
A vulnerability was found in Forgejo up to 15.0.4. This issue affects the function net.LookupIP of the file services/migrations/allowlist/is_migrate_allowed.go of the component Repository Migration Handler. Performing a manipulation results in server-side request forgery. The attack can be initiated remotely. The exploit has been made public and could be used. The patch is named b313bb83f5ff22bcc0378e0e0ca7bbd58303f168. It is recommended to apply a patch to fix this issue. The project maintainer explains: "I don't intend to backport this to v15 or v16 as it is a breaking change."
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.004 (28.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 28.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.002
Affected products
- Forgejo — versions 15.0.0, 15.0.1, 15.0.2
Weakness classification (CWE)
References
- vuldb.com/vuln/397072 (technical-description, vdb-entry)
- vuldb.com/vuln/397072/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-82556 (third-party-advisory)
- vuldb.com/submit/891889 (third-party-advisory)
- codeberg.org/forgejo/forgejo/issues/13433 (issue-tracking, exploit, broken-link)
- codeberg.org/forgejo/forgejo/pulls/13490 (broken-link)
- codeberg.org/forgejo/forgejo/commit/b313bb83f5ff22bcc0378e0e0ca7bbd58303f168 (patch)
Frequently asked questions
- What is CVE-2026-82556?
- CVE-2026-82556 is a medium-severity vulnerability in Forgejo, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.3/10. Published 2026-08-30.
- How severe is CVE-2026-82556?
- Medium severity. CVSS v3 base score is 6.3 out of 10.