Vulnerability-Lookup

FKIE_CVE-2026-41855

Vulnerability from fkie_nvd - Published: 2026-06-09 05:16 - Updated: 2026-07-23 08:10

Severity

8.1 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

In an untrusted JMS environment, org.springframework.jms.support.converter.MappingJackson2MessageConverter and org.springframework.jms.support.converter.JacksonJsonMessageConverter allow arbitrary class instantiation, which can lead to unauthorized actions via gadget class deserialization. Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48.

References

	URL	Tags
	security@vmware.com	https://spring.io/security/cve-2026-41855	Vendor Advisory

Impacted products

Vendor	Product	Version
vmware	spring_framework	*
vmware	spring_framework	*
vmware	spring_framework	*
vmware	spring_framework	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Spring Framework",
          "vendor": "Spring",
          "versions": [
            {
              "lessThan": "7.0.7.1",
              "status": "affected",
              "version": "7.0.0",
              "versionType": "custom"
            },
            {
              "lessThan": "6.2.18.1",
              "status": "affected",
              "version": "6.2.0",
              "versionType": "custom"
            },
            {
              "lessThan": "6.1.28",
              "status": "affected",
              "version": "6.1.0",
              "versionType": "custom"
            },
            {
              "lessThan": "5.3.49",
              "status": "affected",
              "version": "5.3.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "security@vmware.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:vmware:spring_framework:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "9394F974-169E-4FB0-A85B-0114477DE421",
              "versionEndExcluding": "5.3.49",
              "versionStartIncluding": "5.3.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:vmware:spring_framework:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "CE392CE7-5DA3-4DBE-B22C-27781E204B7E",
              "versionEndExcluding": "6.1.28",
              "versionStartIncluding": "6.1.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:vmware:spring_framework:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "8D4BC30C-3E08-4A62-992D-4D2274844D54",
              "versionEndExcluding": "6.2.18.1",
              "versionStartIncluding": "6.2.0",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "569A2EF8-281F-4D8A-A76C-79ED67826B38",
              "versionEndExcluding": "7.0.7.1",
              "versionStartIncluding": "7.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In an untrusted JMS environment, org.springframework.jms.support.converter.MappingJackson2MessageConverter and org.springframework.jms.support.converter.JacksonJsonMessageConverter allow arbitrary class instantiation, which can lead to unauthorized actions via gadget class deserialization.\n\nAffected versions:\nSpring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48."
    },
    {
      "lang": "es",
      "value": "En un entorno JMS no confiable, org.springframework.jms.support.converter.MappingJackson2MessageConverter y org.springframework.jms.support.converter.JacksonJsonMessageConverter permiten la instanciaci\u00f3n arbitraria de clases, lo que puede llevar a acciones no autorizadas a trav\u00e9s de la deserializaci\u00f3n de clases gadget.\n\nVersiones afectadas:\nSpring Framework 7.0.0 hasta 7.0.7; 6.2.0 hasta 6.2.18; 6.1.0 hasta 6.1.27; 5.3.0 hasta 5.3.48."
    }
  ],
  "id": "CVE-2026-41855",
  "lastModified": "2026-07-23T08:10:00.137",
  "metrics": {
    "cvssMetricV31": [
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        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 5.9,
        "source": "security@vmware.com",
        "type": "Secondary"
      },
      {
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          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
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    ],
    "ssvcV203": [
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
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          "options": [
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          "role": "CISA Coordinator",
          "timestamp": "2026-06-09T00:00:00+00:00",
          "version": "2.0.3"
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  "published": "2026-06-09T05:16:37.770",
  "references": [
    {
      "source": "security@vmware.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://spring.io/security/cve-2026-41855"
    }
  ],
  "sourceIdentifier": "security@vmware.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-502"
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      ],
      "source": "security@vmware.com",
      "type": "Secondary"
    }
  ]
}

CVE-2026-41855 (GCVE-0-2026-41855)

Vulnerability from cvelistv5 – Published: 2026-06-09 03:51 – Updated: 2026-06-27 21:07

Title

Spring Framework Unsafe Deserialization via Jackson JMS Converters

Summary

Severity

8.1 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-09 00:00 UTC

CWE

CWE-502 - Deserialization of Untrusted Data

Assigner

vmware mitre root

References

1 reference

URL	Tags
https://spring.io/security/cve-2026-41855

Impacted products

1 product

Vendor	Product	Version
Spring	Spring Framework	Affected: 7.0.0 , < 7.0.7.1 (custom) Affected: 6.2.0 , < 6.2.18.1 (custom) Affected: 6.1.0 , < 6.1.28 (custom) Affected: 5.3.0 , < 5.3.49 (custom)

Show details on NVD website

JSON

To clipboard

{
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        "metrics": [
          {
            "other": {
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                "id": "CVE-2026-41855",
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                  },
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-09T00:00:00+00:00",
                "version": "2.0.3"
              },
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          }
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              "version": "6.1.0",
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              "status": "affected",
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      "metrics": [
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            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
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}

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.