CVE-2022-27780: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-82rv-h33p-2xgc
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CVSS 7.5
CWE-177 CWE-918
Published
Advisory Summary

CVE-2022-27780 is a HIGH (CVSS 7.5) security vulnerability vulnerability (CWE-177: Improper Handling of URL Encoding (Hex Encoding)) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product does not properly handle when all or part of an input has been url encoded.. Remediation is available in the latest vendor maintenance releases.

CVE-2022-27780 at a Glance

CVE Identifier CVE-2022-27780
GHSA Identifier GHSA-82rv-h33p-2xgc
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-177: Improper Handling of URL Encoding (Hex Encoding)
Affected Product Software
Package Ecosystem Maven
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:H/A:N).

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 High (I:H)
Availability None (A:N)

How to Fix CVE-2022-27780

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

Verify Direct and Transitive Dependencies

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

mvn dependency:tree

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2022-27780, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

Analyze the terminal output to locate any version of Software in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-177: Improper Handling of URL Encoding (Hex Encoding), where the product does not properly handle when all or part of an input has been url encoded. In Software, 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

The curl URL parser wrongly accepts percent-encoded URL separators like '/'when decoding the host name part of a URL, making it a *different* URL usingthe wrong host name when it is later retrieved.For example, a URL like `http://example.com%2F127.0.0.1/`, would be allowed bythe parser and get transposed into `http://example.com/127.0.0.1/`. This flawcan be used to circumvent filters, checks and more.

References

NVD — CVE-2022-27780 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-27780
hackerone.com/reports/1553841 WEB
https://hackerone.com/reports/1553841
cert-portal.siemens.com/productcert/html/ss... WEB
https://cert-portal.siemens.com/productcert/html/ssa-398330.html
Software Security Information SECURITY
https://security.gentoo.org/glsa/202212-01
Software Security Information SECURITY
https://security.netapp.com/advisory/ntap-20220609-0009

Frequently Asked Questions

What is CVE-2022-27780?
CVE-2022-27780 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-177: Improper Handling of URL Encoding (Hex Encoding).
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2022-27780?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2022-27780?
CVE-2022-27780 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:H/A:N.
What CWE is associated with CVE-2022-27780?
CVE-2022-27780 is classified under CWE-177: Improper Handling of URL Encoding (Hex Encoding) (The product does not properly handle when all or part of an input has been URL encoded.).
How can I check Maven dependencies for CVE-2022-27780?
Run the dependency tree command: 'mvn dependency:tree'. 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-82rv-h33p-2xgc",
  "modified" : "2026-10-14T18:31:27Z",
  "published" : "2022-06-03T00:01:03Z",
  "aliases" : [ "CVE-2022-27780" ],
  "details" : "The curl URL parser wrongly accepts percent-encoded URL separators like '/'when decoding the host name part of a URL, making it a *different* URL usingthe wrong host name when it is later retrieved.For example, a URL like `http://example.com%2F127.0.0.1/`, would be allowed bythe parser and get transposed into `http://example.com/127.0.0.1/`. This flawcan be used to circumvent filters, checks and more.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-27780"
  }, {
    "type" : "WEB",
    "url" : "https://hackerone.com/reports/1553841"
  }, {
    "type" : "WEB",
    "url" : "https://cert-portal.siemens.com/productcert/html/ssa-398330.html"
  }, {
    "type" : "WEB",
    "url" : "https://security.gentoo.org/glsa/202212-01"
  }, {
    "type" : "WEB",
    "url" : "https://security.netapp.com/advisory/ntap-20220609-0009"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-177", "CWE-918" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2022-06-02T14:15:00Z"
  }
}