Vulnerability-Lookup

CVE-2026-90785 (GCVE-0-2026-90785)

Vulnerability from cvelistv5 – Published: 2026-09-14 13:15 – Updated: 2026-09-15 13:57 X_Open Source

Title

Dvidelabs flatcc Struct Analysis semantics.c analyze_struct assertion

Summary

A vulnerability was found in Dvidelabs flatcc up to 0.6.3. This affects the function analyze_struct of the file src/compiler/semantics.c of the component Struct Analysis. The manipulation results in reachable assertion. It is possible to launch the attack remotely. The exploit has been made public and could be used. The patch is identified as f705032346ee39efd7d3848c50b73d455d28d06d. A patch should be applied to remediate this issue.

Severity

6.9 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

5.3 (Medium)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-15 13:47 UTC

CWE

CWE-617 - Reachable Assertion

Assigner

VulDB mitre root

References

7 references

URL	Tags
https://vuldb.com/vuln/403291	vdb-entrytechnical-description
https://vuldb.com/vuln/403291/cti	signaturepermissions-required
https://vuldb.com/cve/CVE-2026-90785	third-party-advisory
https://vuldb.com/submit/919200	third-party-advisory
https://github.com/dvidelabs/flatcc/issues/388	exploitissue-tracking
https://github.com/dvidelabs/flatcc/commit/f70503…	patch
https://github.com/dvidelabs/flatcc/	product

Impacted products

1 product

Vendor	Product	Version	CPE status
Dvidelabs	flatcc	Affected: 0.6.0 Affected: 0.6.1 Affected: 0.6.2 Affected: 0.6.3 cpe:2.3:a:dvidelabs:flatcc::::::::

Credits

lrrh (VulDB User)

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-90785

Vulnerability from fkie_nvd - Published: 2026-09-14 14:17 - Updated: 2026-09-15 14:17

Severity

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

Summary

References

	URL	Tags
	cna@vuldb.com	https://github.com/dvidelabs/flatcc/
	cna@vuldb.com	https://github.com/dvidelabs/flatcc/commit/f705032346ee39efd7d3848c50b73d455d28d06d
	cna@vuldb.com	https://github.com/dvidelabs/flatcc/issues/388
	cna@vuldb.com	https://vuldb.com/cve/CVE-2026-90785
	cna@vuldb.com	https://vuldb.com/submit/919200
	cna@vuldb.com	https://vuldb.com/vuln/403291
	cna@vuldb.com	https://vuldb.com/vuln/403291/cti

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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          "cpes": [
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        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "PROOF_OF_CONCEPT",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "LOW",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-90785",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-15T13:47:21.912180Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-14T14:17:19.183",
  "references": [
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/dvidelabs/flatcc/"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/dvidelabs/flatcc/commit/f705032346ee39efd7d3848c50b73d455d28d06d"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/dvidelabs/flatcc/issues/388"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/cve/CVE-2026-90785"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/submit/919200"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/vuln/403291"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/vuln/403291/cti"
    }
  ],
  "sourceIdentifier": "cna@vuldb.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-617"
        }
      ],
      "source": "cna@vuldb.com",
      "type": "Secondary"
    }
  ]
}

GHSA-Q8J4-VFVG-JRFR

Vulnerability from github – Published: 2026-09-14 15:32 – Updated: 2026-09-14 15:32

Details

Severity

5.3 (Medium)


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

5.5 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-90785"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-617"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-14T14:17:19Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability was found in Dvidelabs flatcc up to 0.6.3. This affects the function analyze_struct of the file src/compiler/semantics.c of the component Struct Analysis. The manipulation results in reachable assertion. It is possible to launch the attack remotely. The exploit has been made public and could be used. The patch is identified as f705032346ee39efd7d3848c50b73d455d28d06d. A patch should be applied to remediate this issue.",
  "id": "GHSA-q8j4-vfvg-jrfr",
  "modified": "2026-09-14T15:32:46Z",
  "published": "2026-09-14T15:32:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90785"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dvidelabs/flatcc/issues/388"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dvidelabs/flatcc/commit/f705032346ee39efd7d3848c50b73d455d28d06d"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dvidelabs/flatcc"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/cve/CVE-2026-90785"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/919200"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/403291"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/403291/cti"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

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.

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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

CVE-2026-90785 (GCVE-0-2026-90785)

FKIE_CVE-2026-90785

GHSA-Q8J4-VFVG-JRFR

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