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CVE-2026-119027high7.7

oapi-codegen 2.5.0 before 2.8.1 Code Injection via servers[].x-go-name Extension

Impact

oapi-codegen versions 2.5.0 before 2.8.1 have a code injection vulnerability via the servers[].x-go-name extension, allowing attackers to inject Go code. Attackers must control an OpenAPI document to exploit this weakness. The impact is code execution when the victim builds and imports the generated package.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

oapi-codegen · VulnCheck

oapi-codegen

1 range
VulnCheck version evidence

Package identity

pkg:golang/github.com/oapi-codegen/oapi-codegen/v2Explore github.com/oapi-codegen/oapi-codegen/v2 →

Identity supplied by VulnCheck. Version matching requires compatible range evidence.

Compare with this publisher’s ranges. This does not inspect your installation.

affected

2.5.0 → before 2.8.1

semver versions

unaffected

unknown

Other versions: unaffected

Original source description

oapi-codegen 2.5.0 before 2.8.1 contains a code injection vulnerability that allows attackers to inject Go code by supplying a crafted servers[].x-go-name value emitted unescaped by the server-urls template. Attackers who control an OpenAPI document can define an injected func init() that executes when the victim builds and imports the generated package.

Inside the record

Evidence available

Package identity
Version evidence
Remediation guidance · not supplied
Weakness classification
Additional publishers

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-119027

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-94 ↗

Improper Control of Generation of Code ('Code Injection')

VulnCheck

Related →
Contributing organizations · 2
VulnCheck

Assigning organization

2026-10-29
CISA-ADP

Additional data publisher

2026-10-29

What changed

Follow changes
  1. CVE · CVE-2026-119027

    Observed 2026-10-29T17:51:57.602Z · upstream updated 2026-10-29T17:20:19.252Z

    Prioritization updated

    before

    []

    after

    [
  {
    "source": "CISA-ADP",
    "type": "SSVC",
    "role": "CISA Coordinator",
    "timestamp": "2026-10-29T15:37:44.678832Z",
    "decisions": [
      {
        "name": "Exploitation",
        "value": "none"
      },
      {
        "name": "Automatable",
        "value": "no"
      },
      {
        "name": "Technical Impact",
        "value": "total"
      }
    ]
  }
]

Large field values are marked as truncated previews. Original source snapshots remain retained.

Showing up to 50 most recent observed changes.

References

8 sources
github.com/oapi-codegen/oapi-codegen/security/advisories/GHSA-g2vv-83pm-v2hc
vendor-advisoryVulnCheck
github.com/oapi-codegen/oapi-codegen/pull/2626
patchVulnCheck
github.com/oapi-codegen/oapi-codegen/commit/068f1bcd16e4724c72d78d6774008a877b8297b1
patchVulnCheck
github.com/oapi-codegen/oapi-codegen/security/advisories/GHSA-rjwr-m7qx-3fjr
relatedVulnCheck
github.com/oapi-codegen/oapi-codegen/blob/v2.8.0/pkg/codegen/templates/server-urls.tmpl
technical-descriptionVulnCheck
github.com/oapi-codegen/oapi-codegen/blob/v2.5.0/pkg/codegen/templates/server-urls.tmpl
technical-descriptionVulnCheck
View 2 more references
github.com/oapi-codegen/oapi-codegen/releases/tag/v2.8.1
release-notesVulnCheck
www.vulncheck.com/advisories/oapi-codegen-2.5.0-before-2.8.1-code-injection-via-servers-x-go-name-extension
third-party-advisoryVulnCheck