oapi-codegen 2.0.0 before 2.8.1 contains a code injection vulnerability that allows attackers to inject Go code by supplying non-literal enum entries in integer, number, or boolean schemas. Attackers controlling an OpenAPI document can craft an enum entry that closes the const block in constants.tmpl and injects a func init(), executing code when the generated package is built and imported.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

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 High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact total

Affected Vendors & Products

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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://github.com/oapi-codegen/oapi-codegen/blob/v2.0.0/pkg/codegen/templates/constants.tmpl#L12 cve-icon cve-icon
https://github.com/oapi-codegen/oapi-codegen/blob/v2.8.0/pkg/codegen/templates/constants.tmpl#L16 cve-icon cve-icon
https://github.com/oapi-codegen/oapi-codegen/commit/068f1bcd16e4724c72d78d6774008a877b8297b1 cve-icon cve-icon
https://github.com/oapi-codegen/oapi-codegen/pull/2626 cve-icon cve-icon
https://github.com/oapi-codegen/oapi-codegen/releases/tag/v2.8.1 cve-icon cve-icon
https://github.com/oapi-codegen/oapi-codegen/security/advisories/GHSA-g2vv-83pm-v2hc cve-icon cve-icon
https://github.com/oapi-codegen/oapi-codegen/security/advisories/GHSA-xrqw-w576-xgj2 cve-icon cve-icon
https://www.vulncheck.com/advisories/oapi-codegen-2.0.0-before-2.8.1-code-injection-via-non-string-enum-values cve-icon cve-icon
History

Thu, 29 Oct 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Thu, 29 Oct 2026 11:45:00 +0000

Type Values Removed Values Added
Description oapi-codegen 2.0.0 before 2.8.1 contains a code injection vulnerability that allows attackers to inject Go code by supplying non-literal enum entries in integer, number, or boolean schemas. Attackers controlling an OpenAPI document can craft an enum entry that closes the const block in constants.tmpl and injects a func init(), executing code when the generated package is built and imported.
Title oapi-codegen 2.0.0 before 2.8.1 Code Injection via Non-String Enum Values
Weaknesses CWE-94
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-29T14:08:24.785Z

Reserved: 2026-10-29T11:32:05.290Z

Link: CVE-2026-119028

cve-icon Vulnrichment

Updated: 2026-10-29T14:08:15.499Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-29T12:17:12.310

Modified: 2026-10-29T16:19:37.750

Link: CVE-2026-119028

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-29T12:45:09Z

Weaknesses