CVE-2026-90786

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Source

https://cve.org/CVERecord?id=CVE-2026-90786

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90786.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-90786

Published

2026-09-14T13:30:08Z

Modified

2026-09-17T08:06:09Z

Severity

5.5 (Medium) CVSS_V4 - 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 CVSS Calculator

Summary

Dvidelabs flatcc Duplicate Symbol semantics.c align_order_members assertion

Details

A vulnerability was determined in Dvidelabs flatcc up to 0.6.3. This impacts the function align_order_members of the file src/compiler/semantics.c of the component Duplicate Symbol Handler. This manipulation causes reachable assertion. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. Patch name: 8b19ba4e992ebcad7f5970704d1afc5507fa5205. To fix this issue, it is recommended to deploy a patch.

Database specific

{
    "cna_assigner": "VulDB",
    "cwe_ids": [
        "CWE-617"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90786.json"
}

References

Affected packages

Git / github.com/dvidelabs/flatcc

Affected ranges

Type

GIT

Repo

https://github.com/dvidelabs/flatcc

Events

Introduced

571dc4100670b0df51f727dc6ab747a8851f4695

Last Affected

503799885b5517ea9d316c17e35471178c09e35a

Database specific

Show details

{
    "extracted_events": [
        {
            "introduced": "0.6.0"
        },
        {
            "last_affected": "0.6.0"
        },
        {
            "introduced": "0.6.1"
        },
        {
            "last_affected": "0.6.1"
        },
        {
            "introduced": "0.6.2"
        },
        {
            "last_affected": "0.6.2"
        },
        {
            "introduced": "0.6.3"
        },
        {
            "last_affected": "0.6.3"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Type

GIT

Repo

https://github.com/jimjag/flatcc

Events

Introduced

Fixed

8b19ba4e992ebcad7f5970704d1afc5507fa5205

Database specific

Show details

{
    "source": "REFERENCES"
}

Affected versions

0.*

0.6.0

0.6.1

0.6.2

0.6.3

v0.*

v0.1.0

v0.1.1

v0.2.0

v0.2.1

v0.3.0

v0.3.1

v0.3.2

v0.3.3

v0.3.4

v0.3.5

v0.3.5a

v0.4.0

v0.4.1

v0.4.2

v0.4.3

v0.5.0

v0.5.1

v0.5.2

v0.5.3

v0.6.0

v0.6.1

v0.6.2

v0.6.3

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90786.json"

vanir_signatures

[
    {
        "deprecated": false,
        "digest": {
            "function_hash": "91234820027102866291302776369038616003",
            "length": 3790
        },
        "id": "CVE-2026-90786-afbe525c",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/jimjag/flatcc/commit/8b19ba4e992ebcad7f5970704d1afc5507fa5205",
        "target": {
            "file": "src/compiler/semantics.c",
            "function": "fb_build_schema"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
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            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-90786-cf5bd63e",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/jimjag/flatcc/commit/8b19ba4e992ebcad7f5970704d1afc5507fa5205",
        "target": {
            "file": "src/compiler/semantics.c"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "function_hash": "45323300188113434196277849483333006658",
            "length": 13641
        },
        "id": "CVE-2026-90786-feb1a30d",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/jimjag/flatcc/commit/8b19ba4e992ebcad7f5970704d1afc5507fa5205",
        "target": {
            "file": "src/compiler/semantics.c",
            "function": "process_table"
        }
    }
]

vanir_signatures_modified

"2026-09-17T08:06:09Z"