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CVE-2026-119027

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

CVSS score

7.7

EPSS probability

—

Risk score

0.8

Published

1 h ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Official patch verified

Etkilenen ürün ve sürüm için yayımlanan güvenlik güncellemesini uygulayın.

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Vulnerability description

DayBreach AI Explanation

Verified against sources

oapi-codegen Code Injection Vulnerability Between Versions 2.5.0 and 2.8.1

Sources read

1

Source agreement

Tam uyum

Evidence confidence

%55

Short explanation

oapi-codegen versions 2.5.0 through 2.8.1 contain a code injection vulnerability due to unescaped values emitted by the server-urls template.

Why does it matter?

Through a controlled OpenAPI document, attackers can inject Go code that executes when the victim builds and imports the generated package.

What should be done?

  • Follow the vendor advisory
  • Apply the related patch references
Chain of evidence and sources2 verified claims

oapi-codegen sürümleri 2.5.0 ile 2.8.1 arasında kod enjeksiyonu zafiyeti bulunmaktadır.

S0 · daybreach-canonicalS1 · cvelist

Saldırganlar servers[].x-go-name değerini kullanarak Go kodu enjekte edebilir.

S0 · daybreach-canonicalS1 · cvelist
Show the technical text from the sources

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.

CVSS vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CWE: CWE-94

This explanation was compiled automatically from the source records. Scores, active exploitation, patch and exploit status come straight from the sources.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-119027 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1oapi-codegenoapi-codegen View
Total affected vendors: 1|Products: 1

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
7.7CVSS V40HIGHCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XNVD
7.7CVSS V4_0HIGHCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NCVE CNA
7.5CVSS V31HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:HNVD
7.5CVSS V3_1HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:HCVE CNA

Patch and Remediation Guide

Solution & Remediation Advisory

Patch verified

4 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

cvelist

Pull Request #2626

Open source
cvelist

Patch Commit

Open source
reference

Pull Request #2626

Open source
reference

Patch Commit

Open source
Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Apply the official update named in the evidence only to the matching product and version.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-119027 is associated with the following CWEs:

CWE-94: Improper Control of Generation of Code ('Code Injection')

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-119027 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden
PermissionsGerekmiyor
User—

Official Sources and Advisories

GitHub Security Advisory (GHSA-g2vv-83pm-v2hc)vendor-advisoryPull Request #2626patchPatch Commitpatchhttps://github.com/oapi-codegen/oapi-codegen/blob/v2.8.0/pkg/codegen/templates/server-urls.tmpl#L5-L7vendor-advisoryhttps://github.com/oapi-codegen/oapi-codegen/blob/v2.5.0/pkg/codegen/templates/server-urls.tmpl#L4-L5vendor-advisoryoapi-codegen v2.8.1 Release Notesvendor-advisoryGitHub Security Advisory (GHSA-rjwr-m7qx-3fjr)vendor-advisoryVulnCheck Advisory: oapi-codegen 2.5.0 before 2.8.1 Code Injection via servers[].x-go-name Extensionvendor-advisory

CVSS Vector Radar Chart

7.7 / 10
Attack VectorNetworkComplexityLowPrivilegesNoneUser Interact.RequiredConfidentialityLowIntegrityNoneAvailabilityHigh

Vulnerability Scoring Details

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone required
User InteractionP
Confidentiality (Gizlilik)Low
Integrity (Bütünlük)P
Availability (Erişilebilirlik)High

Yama doğrulandı

4 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

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Weakness Type (CWE & CAPEC)

CWE-94

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CVE-2026-119027 · oapi-codegen 2.5.0 before 2.8.1 Code…