Vulnerability-Lookup

OESA-2025-1264 (CVE-2025-27219)

Vulnerability from osv_openeuler – Published: 2025-03-14 11:08 – Updated: 2026-08-06 11:08 – Source website

Summary

ruby security update

Details

Ruby is a fast and easy interpreted scripting language for object-oriented programming. It has many functions for processing text Files and perform system management tasks (such as Perl).

Security Fix(es):

In the CGI gem before 0.4.2 for Ruby, the CGI::Cookie.parse method in the CGI library contains a potential Denial of Service (DoS) vulnerability. The method does not impose any limit on the length of the raw cookie value it processes. This oversight can lead to excessive resource consumption when parsing extremely large cookies.(CVE-2025-27219)

In the CGI gem before 0.4.2 for Ruby, a Regular Expression Denial of Service (ReDoS) vulnerability exists in the Util#escapeElement method.(CVE-2025-27220)

In the URI gem before 1.0.3 for Ruby, the URI handling methods (URI.join, URI#merge, URI#+) have an inadvertent leakage of authentication credentials because userinfo is retained even after changing the host.(CVE-2025-27221)

Severity

7.5 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

URL

Type

	https://www.openeuler.org/zh/security/security-bu…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2025-27219	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2025-27220	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2025-27221	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "ruby-3.0.3-142.oe2203sp3.aarch64.rpm",
          "ruby-debuginfo-3.0.3-142.oe2203sp3.aarch64.rpm",
          "ruby-debugsource-3.0.3-142.oe2203sp3.aarch64.rpm",
          "ruby-devel-3.0.3-142.oe2203sp3.aarch64.rpm",
          "rubygem-bigdecimal-3.0.0-142.oe2203sp3.aarch64.rpm",
          "rubygem-io-console-0.5.7-142.oe2203sp3.aarch64.rpm",
          "rubygem-json-2.5.1-142.oe2203sp3.aarch64.rpm",
          "rubygem-openssl-2.2.1-142.oe2203sp3.aarch64.rpm",
          "rubygem-psych-3.3.2-142.oe2203sp3.aarch64.rpm"
        ],
        "noarch": [
          "ruby-help-3.0.3-142.oe2203sp3.noarch.rpm",
          "ruby-irb-3.0.3-142.oe2203sp3.noarch.rpm",
          "rubygem-bundler-2.2.32-142.oe2203sp3.noarch.rpm",
          "rubygem-did_you_mean-1.5.0-142.oe2203sp3.noarch.rpm",
          "rubygem-minitest-5.14.2-142.oe2203sp3.noarch.rpm",
          "rubygem-rake-13.0.3-142.oe2203sp3.noarch.rpm",
          "rubygem-rbs-1.4.0-142.oe2203sp3.noarch.rpm",
          "rubygem-rdoc-6.3.3-142.oe2203sp3.noarch.rpm",
          "rubygem-rexml-3.2.5-142.oe2203sp3.noarch.rpm",
          "rubygem-rss-0.2.9-142.oe2203sp3.noarch.rpm",
          "rubygem-test-unit-3.3.7-142.oe2203sp3.noarch.rpm",
          "rubygem-typeprof-0.15.2-142.oe2203sp3.noarch.rpm",
          "rubygems-3.2.32-142.oe2203sp3.noarch.rpm",
          "rubygems-devel-3.2.32-142.oe2203sp3.noarch.rpm"
        ],
        "src": [
          "ruby-3.0.3-142.oe2203sp3.src.rpm"
        ],
        "x86_64": [
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          "ruby-debuginfo-3.0.3-142.oe2203sp3.x86_64.rpm",
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      },
      "package": {
        "ecosystem": "openEuler:22.03-LTS-SP3",
        "name": "ruby",
        "purl": "pkg:rpm/openEuler/ruby\u0026distro=openEuler-22.03-LTS-SP3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.0.3-142.oe2203sp3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "Ruby is a fast and easy interpreted scripting language for object-oriented programming. It has many functions for processing text Files and perform system management tasks (such as Perl).\r\n\r\nSecurity Fix(es):\n\nIn the CGI gem before 0.4.2 for Ruby, the CGI::Cookie.parse method in the CGI library contains a potential Denial of Service (DoS) vulnerability. The method does not impose any limit on the length of the raw cookie value it processes. This oversight can lead to excessive resource consumption when parsing extremely large cookies.(CVE-2025-27219)\n\nIn the CGI gem before 0.4.2 for Ruby, a Regular Expression Denial of Service (ReDoS) vulnerability exists in the Util#escapeElement method.(CVE-2025-27220)\n\nIn the URI gem before 1.0.3 for Ruby, the URI handling methods (URI.join, URI#merge, URI#+) have an inadvertent leakage of authentication credentials because userinfo is retained even after changing the host.(CVE-2025-27221)",
  "id": "OESA-2025-1264",
  "modified": "2026-08-06T11:08:21Z",
  "published": "2025-03-14T11:08:21Z",
  "references": [
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      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1264"
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      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-27219"
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      "type": "ADVISORY",
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  "schema_version": "1.7.2",
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  "summary": "ruby security update",
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    "CVE-2025-27219",
    "CVE-2025-27220",
    "CVE-2025-27221"
  ]
}

CVE-2025-27219 (GCVE-0-2025-27219)

Vulnerability from cvelistv5 – Published: 2025-03-03 00:00 – Updated: 2025-11-03 21:13

Summary

Severity

5.8 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-03-04 16:41 UTC

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

mitre mitre root

References

3 references

URL	Tags
https://hackerone.com/reports/2936778
https://github.com/rubysec/ruby-advisory-db/blob/…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

1 product

Vendor	Product	Version
ruby-lang	CGI	Affected: 0 , < 0.3.5.1 (custom) Affected: 0.3.6 , < 0.3.7 (custom) Affected: 0.4.0 , < 0.4.2 (custom) cpe:2.3:a:ruby-lang:cgi:::::::: cpe:2.3:a:ruby-lang:cgi:::::::: cpe:2.3:a:ruby-lang:cgi::::::::

Show details on NVD website

JSON

To clipboard

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CVE-2025-27220 (GCVE-0-2025-27220)

Vulnerability from cvelistv5 – Published: 2025-03-03 00:00 – Updated: 2025-11-03 21:13

Summary

In the CGI gem before 0.4.2 for Ruby, a Regular Expression Denial of Service (ReDoS) vulnerability exists in the Util#escapeElement method.

Severity

4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-03-04 16:39 UTC

CWE

CWE-1333 - Inefficient Regular Expression Complexity

Assigner

mitre mitre root

References

3 references

URL	Tags
https://hackerone.com/reports/2890322
https://github.com/rubysec/ruby-advisory-db/blob/…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

1 product

Vendor	Product	Version
ruby-lang	CGI	Affected: 0 , < 0.3.5.1 (custom) Affected: 0.3.6 , < 0.3.7 (custom) Affected: 0.4.0 , < 0.4.2 (custom) cpe:2.3:a:ruby-lang:cgi:::::::: cpe:2.3:a:ruby-lang:cgi:::::::: cpe:2.3:a:ruby-lang:cgi::::::::

Show details on NVD website

JSON

To clipboard

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CVE-2025-27221 (GCVE-0-2025-27221)

Vulnerability from cvelistv5 – Published: 2025-03-03 00:00 – Updated: 2025-11-03 21:13

Summary

Severity

3.2 (Low)


                        
                          CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-03-04 16:38 UTC

CWE

CWE-212 - Improper Removal of Sensitive Information Before Storage or Transfer

Assigner

mitre mitre root

References

4 references

URL	Tags
https://hackerone.com/reports/2957667
https://github.com/rubysec/ruby-advisory-db/blob/…
https://lists.debian.org/debian-lts-announce/2025…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

1 product

Vendor	Product	Version
ruby-lang	URI	Affected: 0 , < 0.11.3 (custom) Affected: 0.12.0 , < 0.12.4 (custom) Affected: 0.13.0 , < 0.13.2 (custom) Affected: 1.0.0 , < 1.0.3 (custom) cpe:2.3:a:ruby-lang:uri:::::::: cpe:2.3:a:ruby-lang:uri:::::::: cpe:2.3:a:ruby-lang:uri:::::::: cpe:2.3:a:ruby-lang:uri::::::::

Show details on NVD website

JSON

To clipboard

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                  "criteria": "cpe:2.3:a:ruby-lang:uri:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "0.13.2",
                  "versionStartIncluding": "0.13.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:ruby-lang:uri:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "1.0.3",
                  "versionStartIncluding": "1.0.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the URI gem before 1.0.3 for Ruby, the URI handling methods (URI.join, URI#merge, URI#+) have an inadvertent leakage of authentication credentials because userinfo is retained even after changing the host."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 3.2,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-212",
              "description": "CWE-212 Improper Removal of Sensitive Information Before Storage or Transfer",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-03-03T23:58:48.831Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://hackerone.com/reports/2957667"
        },
        {
          "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/uri/CVE-2025-27221.yml"
        }
      ],
      "x_generator": {
        "engine": "enrichogram 0.0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2025-27221",
    "datePublished": "2025-03-03T00:00:00.000Z",
    "dateReserved": "2025-02-20T00:00:00.000Z",
    "dateUpdated": "2025-11-03T21:13:26.685Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

OESA-2025-1264 (CVE-2025-27219)

CVE-2025-27219 (GCVE-0-2025-27219)

CVE-2025-27220 (GCVE-0-2025-27220)

CVE-2025-27221 (GCVE-0-2025-27221)

Tags

Sightings

Nomenclature

Related by attack behaviour