CVE-2026-119028 PUBLISHED

oapi-codegen 2.0.0 before 2.8.1 Code Injection via Non-String Enum Values

Assigner: VulnCheck
Reserved: 29.10.2026 Published: 29.10.2026 Updated: 29.10.2026

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.

CVSS 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
CVSS Score: 8.7

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	None
User Interaction	Passive

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS Score: 8.8

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

CVSS 3.1

Product Status

Vendor	oapi-codegen
Product	oapi-codegen
Versions	Default: unaffected affected from 2.0.0 to 2.8.1 (excl.)

CVE-2026-119028 PUBLISHED

oapi-codegen 2.0.0 before 2.8.1 Code Injection via Non-String Enum Values

Metrics

Product Status

Credits

References

Problem Types