Forgejo through 15.0.11, 16.0.0 through 16.0.7, and 17.0.0 through 17.0.1 contains a server-side request forgery vulnerability that allows unauthenticated attackers to make the server issue requests by submitting arbitrary OpenID identifier URLs. Attackers can POST crafted identifiers to /user/login/openid to trigger blind discovery GET requests to loopback, cloud metadata, and internal addresses for port scanning and probing.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation poc

Automatable yes

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
forgejo forgejo unaffected
Version Status Constraints
0 affected ≤ 15.0.11
16.0.0 affected ≤ 16.0.7
17.0.0 affected ≤ 17.0.1

No data.

No data.

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Vendors Products
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Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://abraxaslabs.tech/research/forgejo-openid-discovery-ssrf cve-icon cve-icon
https://codeberg.org/forgejo/forgejo cve-icon cve-icon
https://codeberg.org/forgejo/forgejo/src/tag/v17.0.1/modules/auth/openid/openid.go#L35-L36 cve-icon cve-icon
https://github.com/go-gitea/gitea/security/advisories/GHSA-2fcr-jfvc-vgg2 cve-icon cve-icon cve-icon
https://www.vulncheck.com/advisories/forgejo-through-15.0.11-16.0.7-and-17.0.1-ssrf-via-openid-discovery cve-icon cve-icon
History

Fri, 30 Oct 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Fri, 30 Oct 2026 11:45:00 +0000

Type Values Removed Values Added
Description Forgejo through 15.0.11, 16.0.0 through 16.0.7, and 17.0.0 through 17.0.1 contains a server-side request forgery vulnerability that allows unauthenticated attackers to make the server issue requests by submitting arbitrary OpenID identifier URLs. Attackers can POST crafted identifiers to /user/login/openid to trigger blind discovery GET requests to loopback, cloud metadata, and internal addresses for port scanning and probing.
Title Forgejo through 15.0.11, 16.0.7, and 17.0.1 SSRF via OpenID Discovery
First Time appeared Forgejo
Forgejo forgejo
Weaknesses CWE-918
CPEs cpe:2.3:a:forgejo:forgejo:*:*:*:*:*:*:*:*
Vendors & Products Forgejo
Forgejo forgejo
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-30T16:09:53.289Z

Reserved: 2026-10-30T10:53:23.968Z

Link: CVE-2026-119545

cve-icon Vulnrichment

Updated: 2026-10-30T16:09:38.700Z

cve-icon NVD

Status : Deferred

Published: 2026-10-30T12:16:40.343

Modified: 2026-10-30T17:17:19.977

Link: CVE-2026-119545

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-30T13:15:15Z

Weaknesses