CVE-2026-73478 (GCVE-0-2026-73478)

Vulnerability from cvelistv5 – Published: 2026-09-02 12:32 – Updated: 2026-09-02 12:32
VLAI
Title
Diff - Moderately critical - Access bypass - SA-CONTRIB-2026-096
Summary
Incorrect Authorization vulnerability in Drupal Diff allows Forceful Browsing. This issue affects Diff versions: from 0.0.0 to 2.0.1, from 2.1.0 to 2.1.1.
Severity
No CVSS data available.
CWE
  • CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
Vendor Product Version CPE status
Drupal Diff Affected: 0.0.0 , < 2.0.1 (semver)
Affected: 2.1.0 , < 2.1.1 (semver)
guessed Create a notification for this product.
Date Public
2026-08-12 17:54
Credits
Alexei Rayu (alexrayu) Adam Bramley (acbramley) Derek Wright (dww) Lee Rowlands (larowlan) Swan Kalata (akalata) Greg Knaddison (greggles) Lee Rowlands (larowlan)
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "collectionURL": "https://www.drupal.org/project/diff",
          "product": "Diff",
          "repo": "https://git.drupalcode.org/project/diff",
          "vendor": "Drupal",
          "versions": [
            {
              "lessThan": "2.0.1",
              "status": "affected",
              "version": "0.0.0",
              "versionType": "semver"
            },
            {
              "lessThan": "2.1.1",
              "status": "affected",
              "version": "2.1.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Alexei Rayu (alexrayu)"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Adam Bramley (acbramley)"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Derek Wright (dww)"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Lee Rowlands (larowlan)"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "Swan Kalata (akalata)"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "Greg Knaddison (greggles)"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "Lee Rowlands (larowlan)"
        }
      ],
      "datePublic": "2026-08-12T17:54:13.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Incorrect Authorization vulnerability in Drupal Diff allows Forceful Browsing. This issue affects Diff versions: from 0.0.0 to 2.0.1, from 2.1.0 to 2.1.1."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-87",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-87 Forceful Browsing"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-863",
              "description": "CWE-863 Incorrect Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-02T12:32:40.783Z",
        "orgId": "2c85b837-eb8b-40ed-9d74-228c62987387",
        "shortName": "drupal"
      },
      "references": [
        {
          "url": "https://www.drupal.org/sa-contrib-2026-096"
        }
      ],
      "title": "Diff - Moderately critical - Access bypass - SA-CONTRIB-2026-096"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "2c85b837-eb8b-40ed-9d74-228c62987387",
    "assignerShortName": "drupal",
    "cveId": "CVE-2026-73478",
    "datePublished": "2026-09-02T12:32:40.783Z",
    "dateReserved": "2026-08-12T17:21:18.777Z",
    "dateUpdated": "2026-09-02T12:32:40.783Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-73478\",\"sourceIdentifier\":\"mlhess@drupal.org\",\"published\":\"2026-09-02T13:18:08.637\",\"lastModified\":\"2026-09-02T13:53:45.597\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Incorrect Authorization vulnerability in Drupal Diff allows Forceful Browsing. This issue affects Diff versions: from 0.0.0 to 2.0.1, from 2.1.0 to 2.1.1.\"}],\"affected\":[{\"source\":\"mlhess@drupal.org\",\"affectedData\":[{\"vendor\":\"Drupal\",\"product\":\"Diff\",\"collectionURL\":\"https://www.drupal.org/project/diff\",\"repo\":\"https://git.drupalcode.org/project/diff\",\"versions\":[{\"version\":\"0.0.0\",\"lessThan\":\"2.0.1\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"2.1.0\",\"lessThan\":\"2.1.1\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{},\"weaknesses\":[{\"source\":\"mlhess@drupal.org\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-863\"}]}],\"references\":[{\"url\":\"https://www.drupal.org/sa-contrib-2026-096\",\"source\":\"mlhess@drupal.org\"}]}}"
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.