Vulnerabilities in pkg:golang/golang.org/x/oauth2

PACKAGE
Advisory Identifier: GHSA-6v2p-p543-phr9
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Advisory Summary

CVE-2025-22868 is a HIGH (CVSS 7.5) golang.org/x/oauth2 improper validation of syntactic vulnerability (CWE-1286: Improper Validation of Syntactic Correctness of Input) affecting Golang.org/x/oauth2 libraries in the Go ecosystem. The issue involves golang.org/x/oauth2 improper validation of syntactic correctness of input vulnerability. Remediation is available by upgrading affected packages to version 0.27.0.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:golang/golang.org/x/oauth2

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:golang/golang.org/x/oauth2. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-6v2p-p543-phr9 CVE-2025-22868 HIGH golang.org/x/oauth2 Improper Validation of Syntactic Correctness of Input vulnerability

CVE-2025-22868 at a Glance

CVE Identifier CVE-2025-22868
GHSA Identifier GHSA-6v2p-p543-phr9
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-1286: Improper Validation of Syntactic Correctness of Input
Affected Product Golang.org/x/oauth2
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2025-22868

To remediate this vulnerability, upgrade all affected Golang.org/x/oauth2 dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

golang.org/x/oauth2 fixed: 0.27.0 
Upgrade golang.org/x/oauth2 to 0.27.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for golang.org/x/oauth2

How to Check if You Are Affected

To determine whether your application is affected by CVE-2025-22868, inspect your project dependencies for Golang.org/x/oauth2:

inspect dependencies for golang.org/x/oauth2

Analyze the terminal output to locate any version of Golang.org/x/oauth2 in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.27.0), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-1286: Improper Validation of Syntactic Correctness of Input, where the product receives input that is expected to be well-formed - i.e., to comply with a certain syntax - but it does not validate or incorrectly validates that the input complies with the syntax. In Golang.org/x/oauth2, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

An attacker can pass a malicious malformed token which causes unexpected memory to be consumed during parsing.

CVE-2025-22868 Affected Golang.org/x/oauth2 Versions

1 component(s)
Fixed Versions:
0.27.0
Product / Package Ecosystem Affected Versions Fixed Version
golang.org/x/oauth2
golang/golang.org/x/oauth2
Go
< 0.27.0
0.27.0

References

NVD — CVE-2025-22868 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-22868
go.dev/cl/652155 WEB
https://go.dev/cl/652155
go.dev/issue/71490 WEB
https://go.dev/issue/71490
pkg.go.dev/vuln/go-2025-3488 WEB
https://pkg.go.dev/vuln/GO-2025-3488

Frequently Asked Questions

What is CVE-2025-22868?
CVE-2025-22868 is a security vulnerability in Golang.org/x/oauth2 involving golang.org/x/oauth2 Improper Validation of Syntactic Correctness of Input vulnerability under CWE-1286: Improper Validation of Syntactic Correctness of Input.
Which Golang.org/x/oauth2 versions are affected?
Affected versions include releases prior to 0.27.0 across affected packages: golang.org/x/oauth2.
What version fixes CVE-2025-22868?
Upgrading to 0.27.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is golang.org/x/oauth2 affected?
Yes, golang.org/x/oauth2 is affected in releases prior to 0.27.0. Upgrade your dependency to 0.27.0 or later.
What is the CVSS score of CVE-2025-22868?
CVE-2025-22868 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2025-22868?
CVE-2025-22868 is classified under CWE-1286: Improper Validation of Syntactic Correctness of Input (The product receives input that is expected to be well-formed - i.e., to comply with a certain syntax - but it does not validate or incorrectly validates that the input complies with the syntax.).
How can I check Go dependencies for CVE-2025-22868?
Run the dependency tree command: 'inspect dependencies for golang.org/x/oauth2'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-6v2p-p543-phr9",
  "modified" : "2025-07-18T17:27:22Z",
  "published" : "2025-07-18T17:27:22Z",
  "aliases" : [ "CVE-2025-22868" ],
  "summary" : "golang.org/x/oauth2 Improper Validation of Syntactic Correctness of Input vulnerability",
  "details" : "An attacker can pass a malicious malformed token which causes unexpected memory to be consumed during parsing.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "golang.org/x/oauth2"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.27.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-22868"
  }, {
    "type" : "WEB",
    "url" : "https://go.dev/cl/652155"
  }, {
    "type" : "WEB",
    "url" : "https://go.dev/issue/71490"
  }, {
    "type" : "WEB",
    "url" : "https://pkg.go.dev/vuln/GO-2025-3488"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1286" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-07-18T17:27:22Z",
    "nvd_published_at" : "2025-02-26T08:14:24Z"
  }
}