Vulnerability-Lookup

CVE-2026-47842 (GCVE-0-2026-47842)

Vulnerability from cvelistv5 – Published: 2026-08-26 19:22 – Updated: 2026-08-26 19:45

Title

Deterministic AES/CBC Encryption in Spring Security AesBytesEncryptor Allows Ciphertext Correlation

Summary

Applications using AesBytesEncryptor with the two-argument constructor or when passing a null IV generator and CBC as the encryption mode encrypt data with AES/CBC using a null (all-zero) initialization vector. Spring Security 7.1.0 Spring Security 7.0.0 - 7.0.6 Spring Security 6.5.0 - 6.5.11 Spring Security 6.4.0 - 6.4.18 Spring Security 5.8.0 - 5.8.27 Spring Security 5.7.0 - 5.7.25

Severity

6.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-26 19:31 UTC

CWE

CWE-329 Generation of Predictable IV with CBC Mode

Assigner

vmware mitre root

References

1 reference

URL	Tags
https://spring.io/security/cve-2026-47842

Impacted products

1 product

Vendor	Product	Version	CPE status
Spring	Spring Security	Affected: 7.1.0 (custom) Affected: 7.0.0 , ≤ 7.0.6 (custom) Affected: 6.5.0 , ≤ 6.5.11 (custom) Affected: 6.4.0 , ≤ 6.4.18 (custom) Affected: 5.8.0 , ≤ 5.8.27 (custom) Affected: 5.7.0 , ≤ 5.7.25 (custom)	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-47842

Vulnerability from fkie_nvd - Published: 2026-08-26 20:17 - Updated: 2026-08-26 20:17

Severity

6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Summary

References

	URL	Tags
	security@vmware.com	https://spring.io/security/cve-2026-47842

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Spring Security",
          "vendor": "Spring",
          "versions": [
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              "status": "affected",
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              "versionType": "custom"
            },
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            },
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              "status": "affected",
              "version": "5.7.0",
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    }
  ],
  "id": "CVE-2026-47842",
  "lastModified": "2026-08-26T20:17:25.753",
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GHSA-7274-W8XR-FR2W

Vulnerability from github – Published: 2026-08-26 21:31 – Updated: 2026-08-26 21:31

Details

Severity

6.5 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-47842"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-26T20:17:25Z",
    "severity": "MODERATE"
  },
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  "id": "GHSA-7274-w8xr-fr2w",
  "modified": "2026-08-26T21:31:43Z",
  "published": "2026-08-26T21:31:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-47842"
    },
    {
      "type": "WEB",
      "url": "https://spring.io/security/cve-2026-47842"
    }
  ],
  "schema_version": "1.4.0",
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    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

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.

Action not permitted

CVE-2026-47842 (GCVE-0-2026-47842)

FKIE_CVE-2026-47842

GHSA-7274-W8XR-FR2W

Tags

Sightings

Nomenclature