--- title: "CVE-2026-119027: oapi-codegen - Code Injection" description: "oapi-codegen > 2.5.0 and < 2.8.1 contains a code injection vulnerability caused by unescaped servers[].x-go-name value in server-urls template, letting attackers inject Go code executed during package build, exploit requires attacker control of OpenAPI document." url: https://panop.io/threat-heartbeat/CVE-2026-119027/ --- # CVE-2026-119027 oapi-codegen - Code Injection oapi-codegen > 2.5.0 and < 2.8.1 contains a code injection vulnerability caused by unescaped servers\[\].x-go-name value in server-urls template, letting attackers inject Go code executed during package build, exploit requires attacker control of OpenAPI document. CVSS base score 7.5 /10 High CISA KEV Not listed Public exploit None known Authentication Not required EPSS 0.39% chance of exploitation in 30 days [View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-119027) ## Details Type Code Injection Impact Remote Code Execution CVSS vector CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Published 29 October 2026 Updated 31 October 2026 Weakness [CWE-94](https://cwe.mitre.org/data/definitions/94.html) ## Vendor fix Upgrade to version 2.8.1 or later. Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them. ## References - [https://nvd.nist.gov/vuln/detail/CVE-2026-119027](https://nvd.nist.gov/vuln/detail/CVE-2026-119027) - [https://www.vulncheck.com/advisories/oapi-codegen-2.5.0-before-2.8.1-code-injection-via-servers-x-go-name-extension](https://www.vulncheck.com/advisories/oapi-codegen-2.5.0-before-2.8.1-code-injection-via-servers-x-go-name-extension) - [https://github.com/oapi-codegen/oapi-codegen/blob/v2.5.0/pkg/codegen/templates/server-urls.tmpl#L4-L5](https://github.com/oapi-codegen/oapi-codegen/blob/v2.5.0/pkg/codegen/templates/server-urls.tmpl#L4-L5) - [https://github.com/oapi-codegen/oapi-codegen/blob/v2.8.0/pkg/codegen/templates/server-urls.tmpl#L5-L7](https://github.com/oapi-codegen/oapi-codegen/blob/v2.8.0/pkg/codegen/templates/server-urls.tmpl#L5-L7) - [https://github.com/oapi-codegen/oapi-codegen/commit/068f1bcd16e4724c72d78d6774008a877b8297b1](https://github.com/oapi-codegen/oapi-codegen/commit/068f1bcd16e4724c72d78d6774008a877b8297b1) - [https://github.com/oapi-codegen/oapi-codegen/pull/2626](https://github.com/oapi-codegen/oapi-codegen/pull/2626) - [https://github.com/oapi-codegen/oapi-codegen/releases/tag/v2.8.1](https://github.com/oapi-codegen/oapi-codegen/releases/tag/v2.8.1) - [https://github.com/oapi-codegen/oapi-codegen/security/advisories/GHSA-g2vv-83pm-v2hc](https://github.com/oapi-codegen/oapi-codegen/security/advisories/GHSA-g2vv-83pm-v2hc) - [https://github.com/oapi-codegen/oapi-codegen/security/advisories/GHSA-rjwr-m7qx-3fjr](https://github.com/oapi-codegen/oapi-codegen/security/advisories/GHSA-rjwr-m7qx-3fjr) [← All CVEs](https://panop.io/threat-heartbeat/) ## What this record can't tell you - Whether you run the affected software, and where - Whether an attacker can actually reach and exploit it - The misconfigurations that never get a CVE number - What it would cost the business, ranked into what to fix first Panop answers these inside your environment, for this CVE and every other finding. [Book a demo](https://panop.io/demo)